TY  - JOUR
AU  - Gruden-Pavlović, Maja
AU  - Grubišić, Sonja
AU  - Niketic, SR
PY  - 2004
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/654
AB  - Molecular mechanics (MM) calculations were used to analyze the puckering of metalloporphyrins as a function of metal ion size and the position of substituents on the porphyrin periphery, on a three series of octa- and tetrabromo tetraphenylporphyrins: without metal, and with Ni(II), and Tb(III) as representative small and large metal ions, respectively. Molecular energy optimization calculations were carried out using the Consistent Force Field (CFF) program, with the parameters developed previously and new parameters for bromine atom. Normal-coordinate structural decomposition (NSD) analysis was performed on the equilibrium structures obtained by MM calculations. The conformers are also stereochemically characterized, compared with available X-ray structures and with the conformers obtained in our previous MM study using chloro instead of bromo P-pyrrole substituents. (C) 2004 Elsevier Inc. All rights reserved.
PB  - Elsevier Science Inc, New York
T2  - Journal of Inorganic Biochemistry
T1  - Conformational analysis of octa- and tetrabromo tetraphenylporphyrins and their Ni(II) and Tb(III) complexes
VL  - 98
IS  - 8
SP  - 1293
EP  - 1302
DO  - 10.1016/j.jinorgbio.2004.03.017
ER  - 

@article{
author = "Gruden-Pavlović, Maja and Grubišić, Sonja and Niketic, SR",
year = "2004",
abstract = "Molecular mechanics (MM) calculations were used to analyze the puckering of metalloporphyrins as a function of metal ion size and the position of substituents on the porphyrin periphery, on a three series of octa- and tetrabromo tetraphenylporphyrins: without metal, and with Ni(II), and Tb(III) as representative small and large metal ions, respectively. Molecular energy optimization calculations were carried out using the Consistent Force Field (CFF) program, with the parameters developed previously and new parameters for bromine atom. Normal-coordinate structural decomposition (NSD) analysis was performed on the equilibrium structures obtained by MM calculations. The conformers are also stereochemically characterized, compared with available X-ray structures and with the conformers obtained in our previous MM study using chloro instead of bromo P-pyrrole substituents. (C) 2004 Elsevier Inc. All rights reserved.",
publisher = "Elsevier Science Inc, New York",
journal = "Journal of Inorganic Biochemistry",
title = "Conformational analysis of octa- and tetrabromo tetraphenylporphyrins and their Ni(II) and Tb(III) complexes",
volume = "98",
number = "8",
pages = "1293-1302",
doi = "10.1016/j.jinorgbio.2004.03.017"
}

Gruden-Pavlović, M., Grubišić, S.,& Niketic, S.. (2004). Conformational analysis of octa- and tetrabromo tetraphenylporphyrins and their Ni(II) and Tb(III) complexes. in Journal of Inorganic Biochemistry
Elsevier Science Inc, New York., 98(8), 1293-1302.
https://doi.org/10.1016/j.jinorgbio.2004.03.017

Gruden-Pavlović M, Grubišić S, Niketic S. Conformational analysis of octa- and tetrabromo tetraphenylporphyrins and their Ni(II) and Tb(III) complexes. in Journal of Inorganic Biochemistry. 2004;98(8):1293-1302.
doi:10.1016/j.jinorgbio.2004.03.017 .

Gruden-Pavlović, Maja, Grubišić, Sonja, Niketic, SR, "Conformational analysis of octa- and tetrabromo tetraphenylporphyrins and their Ni(II) and Tb(III) complexes" in Journal of Inorganic Biochemistry, 98, no. 8 (2004):1293-1302,
https://doi.org/10.1016/j.jinorgbio.2004.03.017 . .

TY  - JOUR
AU  - Grubišić, Sonja
AU  - Gruden-Pavlović, Maja
AU  - Niketic, SR
AU  - Sakagami-Yoshida, N
AU  - Kaizaki, S
PY  - 2003
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/542
AB  - The structure of trans-equatorial [Cr(edtrp)(H2O)]. 3H(2)O (edtrp(3-) is the anion of ethylenediamine-N,N,N'-tripropionic acid) was determined by single crystal X-ray diffraction. The chromium(III) ion is surrounded octahedrally by the two nitrogen and three oxygen atoms of the quinquedentate edtrp(3-), forming a five-membered diamine ring and the three six-membered beta-propionato chelate rings. The remaining coordination position is occupied by the H2O ligand. The crystal structure conformation is compared to the result of recent molecular mechanics analysis. The ring strain of R and G chelate rings was found to be in agreement with the previously proposed mechanisms for the C-N bond cleavage and recombination.
PB  - Kluwer Academic Publ, Dordrecht
T2  - Transition Metal Chemistry
T1  - Structural characterization of the trans-equatorial isomer of (aqua)(ethylenediamine-N,N,N '-tripropionato)chromium(III) trihydrate, [Cr(edtrp)(H2O)]center dot 3H(2)O
VL  - 28
IS  - 1
SP  - 37
EP  - 42
DO  - 10.1023/A:1022506427516
ER  - 

@article{
author = "Grubišić, Sonja and Gruden-Pavlović, Maja and Niketic, SR and Sakagami-Yoshida, N and Kaizaki, S",
year = "2003",
abstract = "The structure of trans-equatorial [Cr(edtrp)(H2O)]. 3H(2)O (edtrp(3-) is the anion of ethylenediamine-N,N,N'-tripropionic acid) was determined by single crystal X-ray diffraction. The chromium(III) ion is surrounded octahedrally by the two nitrogen and three oxygen atoms of the quinquedentate edtrp(3-), forming a five-membered diamine ring and the three six-membered beta-propionato chelate rings. The remaining coordination position is occupied by the H2O ligand. The crystal structure conformation is compared to the result of recent molecular mechanics analysis. The ring strain of R and G chelate rings was found to be in agreement with the previously proposed mechanisms for the C-N bond cleavage and recombination.",
publisher = "Kluwer Academic Publ, Dordrecht",
journal = "Transition Metal Chemistry",
title = "Structural characterization of the trans-equatorial isomer of (aqua)(ethylenediamine-N,N,N '-tripropionato)chromium(III) trihydrate, [Cr(edtrp)(H2O)]center dot 3H(2)O",
volume = "28",
number = "1",
pages = "37-42",
doi = "10.1023/A:1022506427516"
}

Grubišić, S., Gruden-Pavlović, M., Niketic, S., Sakagami-Yoshida, N.,& Kaizaki, S.. (2003). Structural characterization of the trans-equatorial isomer of (aqua)(ethylenediamine-N,N,N '-tripropionato)chromium(III) trihydrate, [Cr(edtrp)(H2O)]center dot 3H(2)O. in Transition Metal Chemistry
Kluwer Academic Publ, Dordrecht., 28(1), 37-42.
https://doi.org/10.1023/A:1022506427516

Grubišić S, Gruden-Pavlović M, Niketic S, Sakagami-Yoshida N, Kaizaki S. Structural characterization of the trans-equatorial isomer of (aqua)(ethylenediamine-N,N,N '-tripropionato)chromium(III) trihydrate, [Cr(edtrp)(H2O)]center dot 3H(2)O. in Transition Metal Chemistry. 2003;28(1):37-42.
doi:10.1023/A:1022506427516 .

Grubišić, Sonja, Gruden-Pavlović, Maja, Niketic, SR, Sakagami-Yoshida, N, Kaizaki, S, "Structural characterization of the trans-equatorial isomer of (aqua)(ethylenediamine-N,N,N '-tripropionato)chromium(III) trihydrate, [Cr(edtrp)(H2O)]center dot 3H(2)O" in Transition Metal Chemistry, 28, no. 1 (2003):37-42,
https://doi.org/10.1023/A:1022506427516 . .

TY  - JOUR
AU  - Grubišić, Sonja
AU  - Gruden-Pavlović, Maja
AU  - Niketic, SR
AU  - Kaizaki, S
AU  - Sakagami-Yoshida, N
PY  - 2003
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/147
AB  - The structure of the cis-equatorial isomer of [Cr(ed3a)(H2O)] .H2O (ed3a = ethylenediamine-N, N, N'-triacetate ion) was determined by X-ray diffraction method. The complex crystallizes in the monoclinic space group P2(1)/n, a = 7.004(l) Angstrom, b = 15.958(2) Angstrom, c = 11.046(l) Angstrom, beta = 97.16(l)degrees , and Z = 4. Conformational analysis of the three possible geometrical isomers, trans(H2O,N'), trans(H2O,N-H), and trans(H2O,O) of [Cr(ed3a)(H2O)] moiety, performed using the consistent force field (CFF) program with the recently developed parameters for EDTA-type complexes, yielded structural details and energies of the minimized form for each of the isomers. Calculated energies showed that the cis-eq isomer is the most stable one, with the geometry in a very good agreement with the crystallographic structure. Comparison of the molecular mechanics calculations with those for the analogous [Cr(ed3p)(H2O)] - H2O (ed3p = ethylenediamine-N, N, N'-tripropionate ion) revealed some general patterns for the conformational preference of EDTA-type complexes. (C) 2003 Elsevier B.V. All rights reserved.
PB  - Elsevier Science Bv, Amsterdam
T2  - Inorganic Chemistry Communications
T1  - Structural characterization and conformational analysis of (aqua)(ethylenediamine-N,N,N '-triacetato)chromium(III) monohydrate complex. Crystal structure of the cis-equatorial isomer of [Cr(ed3a)(H2O)]center dot H2O
VL  - 6
IS  - 9
SP  - 1180
EP  - 1184
DO  - 10.1016/S1387-7003(03)00220-X
ER  - 

@article{
author = "Grubišić, Sonja and Gruden-Pavlović, Maja and Niketic, SR and Kaizaki, S and Sakagami-Yoshida, N",
year = "2003",
abstract = "The structure of the cis-equatorial isomer of [Cr(ed3a)(H2O)] .H2O (ed3a = ethylenediamine-N, N, N'-triacetate ion) was determined by X-ray diffraction method. The complex crystallizes in the monoclinic space group P2(1)/n, a = 7.004(l) Angstrom, b = 15.958(2) Angstrom, c = 11.046(l) Angstrom, beta = 97.16(l)degrees , and Z = 4. Conformational analysis of the three possible geometrical isomers, trans(H2O,N'), trans(H2O,N-H), and trans(H2O,O) of [Cr(ed3a)(H2O)] moiety, performed using the consistent force field (CFF) program with the recently developed parameters for EDTA-type complexes, yielded structural details and energies of the minimized form for each of the isomers. Calculated energies showed that the cis-eq isomer is the most stable one, with the geometry in a very good agreement with the crystallographic structure. Comparison of the molecular mechanics calculations with those for the analogous [Cr(ed3p)(H2O)] - H2O (ed3p = ethylenediamine-N, N, N'-tripropionate ion) revealed some general patterns for the conformational preference of EDTA-type complexes. (C) 2003 Elsevier B.V. All rights reserved.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Inorganic Chemistry Communications",
title = "Structural characterization and conformational analysis of (aqua)(ethylenediamine-N,N,N '-triacetato)chromium(III) monohydrate complex. Crystal structure of the cis-equatorial isomer of [Cr(ed3a)(H2O)]center dot H2O",
volume = "6",
number = "9",
pages = "1180-1184",
doi = "10.1016/S1387-7003(03)00220-X"
}

Grubišić, S., Gruden-Pavlović, M., Niketic, S., Kaizaki, S.,& Sakagami-Yoshida, N.. (2003). Structural characterization and conformational analysis of (aqua)(ethylenediamine-N,N,N '-triacetato)chromium(III) monohydrate complex. Crystal structure of the cis-equatorial isomer of [Cr(ed3a)(H2O)]center dot H2O. in Inorganic Chemistry Communications
Elsevier Science Bv, Amsterdam., 6(9), 1180-1184.
https://doi.org/10.1016/S1387-7003(03)00220-X

Grubišić S, Gruden-Pavlović M, Niketic S, Kaizaki S, Sakagami-Yoshida N. Structural characterization and conformational analysis of (aqua)(ethylenediamine-N,N,N '-triacetato)chromium(III) monohydrate complex. Crystal structure of the cis-equatorial isomer of [Cr(ed3a)(H2O)]center dot H2O. in Inorganic Chemistry Communications. 2003;6(9):1180-1184.
doi:10.1016/S1387-7003(03)00220-X .

Grubišić, Sonja, Gruden-Pavlović, Maja, Niketic, SR, Kaizaki, S, Sakagami-Yoshida, N, "Structural characterization and conformational analysis of (aqua)(ethylenediamine-N,N,N '-triacetato)chromium(III) monohydrate complex. Crystal structure of the cis-equatorial isomer of [Cr(ed3a)(H2O)]center dot H2O" in Inorganic Chemistry Communications, 6, no. 9 (2003):1180-1184,
https://doi.org/10.1016/S1387-7003(03)00220-X . .

TY  - JOUR
AU  - Grubišić, Sonja
AU  - Gruden-Pavlović, Maja
AU  - Niketic, SR
AU  - Sakagami-Yoshida, N
AU  - Kaizaki, S
PY  - 2002
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/488
AB  - Conformational analysis of the three geometrical isomers of (aqua)(ethylenediamine-tripropionato)cliromium(III) has been performed with the Consistent Force Field (CFF) program. Four stable conformations were identified for trans(H2O,O) and trans(H2O,N-H), and five stable conformations for trans(H2O,N') geometrical isomer. Their structure and relative strain were analyzed and compared with the available experimental data. The conformer representing the global minimum (population 58% at 298 K) was found to match closely the X-ray structure of the trans(H2O,N-H) isomer. The factors which determine the individual chelate ring conformations, and conformational transmission through the entire ligand system was elucidated, and a possible extension of this analysis to other EDTA-type complexes is indicated. (C) 2002 Elsevier Science B.V. All rights reserved.
PB  - Elsevier Science Bv, Amsterdam
T2  - Journal of Molecular Structure
T1  - Conformational analysis of EDTA-type chromium(III) complexes with beta-propionato metal chelate rings
VL  - 609
IS  - 1-3
SP  - 1
EP  - 9
DO  - 10.1016/S0022-2860(01)00856-0
ER  - 

@article{
author = "Grubišić, Sonja and Gruden-Pavlović, Maja and Niketic, SR and Sakagami-Yoshida, N and Kaizaki, S",
year = "2002",
abstract = "Conformational analysis of the three geometrical isomers of (aqua)(ethylenediamine-tripropionato)cliromium(III) has been performed with the Consistent Force Field (CFF) program. Four stable conformations were identified for trans(H2O,O) and trans(H2O,N-H), and five stable conformations for trans(H2O,N') geometrical isomer. Their structure and relative strain were analyzed and compared with the available experimental data. The conformer representing the global minimum (population 58% at 298 K) was found to match closely the X-ray structure of the trans(H2O,N-H) isomer. The factors which determine the individual chelate ring conformations, and conformational transmission through the entire ligand system was elucidated, and a possible extension of this analysis to other EDTA-type complexes is indicated. (C) 2002 Elsevier Science B.V. All rights reserved.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Journal of Molecular Structure",
title = "Conformational analysis of EDTA-type chromium(III) complexes with beta-propionato metal chelate rings",
volume = "609",
number = "1-3",
pages = "1-9",
doi = "10.1016/S0022-2860(01)00856-0"
}

Grubišić, S., Gruden-Pavlović, M., Niketic, S., Sakagami-Yoshida, N.,& Kaizaki, S.. (2002). Conformational analysis of EDTA-type chromium(III) complexes with beta-propionato metal chelate rings. in Journal of Molecular Structure
Elsevier Science Bv, Amsterdam., 609(1-3), 1-9.
https://doi.org/10.1016/S0022-2860(01)00856-0

Grubišić S, Gruden-Pavlović M, Niketic S, Sakagami-Yoshida N, Kaizaki S. Conformational analysis of EDTA-type chromium(III) complexes with beta-propionato metal chelate rings. in Journal of Molecular Structure. 2002;609(1-3):1-9.
doi:10.1016/S0022-2860(01)00856-0 .

Grubišić, Sonja, Gruden-Pavlović, Maja, Niketic, SR, Sakagami-Yoshida, N, Kaizaki, S, "Conformational analysis of EDTA-type chromium(III) complexes with beta-propionato metal chelate rings" in Journal of Molecular Structure, 609, no. 1-3 (2002):1-9,
https://doi.org/10.1016/S0022-2860(01)00856-0 . .

TY  - JOUR
AU  - Gruden-Pavlović, Maja
AU  - Grubišić, Sonja
AU  - Coutsolelos, AG
AU  - Niketic, SR
PY  - 2001
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/472
AB  - A new maximally diagonal force field for molecular modelling of metalloporphyrins is developed and optimized on the crystal structures of nickel(II) porphine, nickel(II) mono-tert-butylporphyrin and nickel(II) di-tert-butylporphyrin. It is then used to investigate non-planar distortions of octa- and tetrachloro tetraphenylporphyrins (TPP) and their Ni(II) and Tb(III) complexes. Molecular mechanics (MM) calculations reproduced very well the structure of Tb(III) octachloro-TPP (so far the only example of a crystallographically characterized chloro TPP metal derivative). Normal-coordinate structural decomposition (NSD) analysis was performed on the equilibrium structures obtained by MM calculations. As expected, sad distortion dominates in octachloro structures irrespective of the presence or the size of the central metal atom; dom distortion dominates in tetrachloro structures with large Th(III) central atom, while sad, ruf, wav and pro distortions are present in various amounts in other tetrachloro structures (TPP free base and Ni(II) complex) depending on the pattern of peripheral chloro substitution on the pyrrole rings. Other observed regularities are: reduction of the conformational flexibility of the porphyrin core upon metallation, and increase of the dihedral angle between the phenyl groups and the mean LSQ plane of the porphyrin core, as well as the overall increase in structural regularity upon the increase of the size of the central metal atom. (C) 2001 Elsevier Science B.V. All rights reserved.
PB  - Elsevier Science Bv, Amsterdam
T2  - Journal of Molecular Structure
T1  - Conformational analysis of octa- and tetrahalogenated tetraphenylporphyrins and their metal derivatives
VL  - 595
IS  - 1-3
SP  - 209
EP  - 224
DO  - 10.1016/S0022-2860(01)00550-6
ER  - 

@article{
author = "Gruden-Pavlović, Maja and Grubišić, Sonja and Coutsolelos, AG and Niketic, SR",
year = "2001",
abstract = "A new maximally diagonal force field for molecular modelling of metalloporphyrins is developed and optimized on the crystal structures of nickel(II) porphine, nickel(II) mono-tert-butylporphyrin and nickel(II) di-tert-butylporphyrin. It is then used to investigate non-planar distortions of octa- and tetrachloro tetraphenylporphyrins (TPP) and their Ni(II) and Tb(III) complexes. Molecular mechanics (MM) calculations reproduced very well the structure of Tb(III) octachloro-TPP (so far the only example of a crystallographically characterized chloro TPP metal derivative). Normal-coordinate structural decomposition (NSD) analysis was performed on the equilibrium structures obtained by MM calculations. As expected, sad distortion dominates in octachloro structures irrespective of the presence or the size of the central metal atom; dom distortion dominates in tetrachloro structures with large Th(III) central atom, while sad, ruf, wav and pro distortions are present in various amounts in other tetrachloro structures (TPP free base and Ni(II) complex) depending on the pattern of peripheral chloro substitution on the pyrrole rings. Other observed regularities are: reduction of the conformational flexibility of the porphyrin core upon metallation, and increase of the dihedral angle between the phenyl groups and the mean LSQ plane of the porphyrin core, as well as the overall increase in structural regularity upon the increase of the size of the central metal atom. (C) 2001 Elsevier Science B.V. All rights reserved.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Journal of Molecular Structure",
title = "Conformational analysis of octa- and tetrahalogenated tetraphenylporphyrins and their metal derivatives",
volume = "595",
number = "1-3",
pages = "209-224",
doi = "10.1016/S0022-2860(01)00550-6"
}

Gruden-Pavlović, M., Grubišić, S., Coutsolelos, A.,& Niketic, S.. (2001). Conformational analysis of octa- and tetrahalogenated tetraphenylporphyrins and their metal derivatives. in Journal of Molecular Structure
Elsevier Science Bv, Amsterdam., 595(1-3), 209-224.
https://doi.org/10.1016/S0022-2860(01)00550-6

Gruden-Pavlović M, Grubišić S, Coutsolelos A, Niketic S. Conformational analysis of octa- and tetrahalogenated tetraphenylporphyrins and their metal derivatives. in Journal of Molecular Structure. 2001;595(1-3):209-224.
doi:10.1016/S0022-2860(01)00550-6 .

Gruden-Pavlović, Maja, Grubišić, Sonja, Coutsolelos, AG, Niketic, SR, "Conformational analysis of octa- and tetrahalogenated tetraphenylporphyrins and their metal derivatives" in Journal of Molecular Structure, 595, no. 1-3 (2001):209-224,
https://doi.org/10.1016/S0022-2860(01)00550-6 . .

TY  - JOUR
AU  - Anđelković, Katarina K.
AU  - Ivanović-Burmazović, Ivana
AU  - Gruden-Pavlović, Maja
AU  - Niketic, SR
PY  - 2001
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/462
AB  - In a template synthesis from ethanolic solution of MoOCl3, 2,6-diacetylpyridine (dap), and semioxamazide (sox), in the molar ratio 1:1:2, a dimeric molybdenum(V) complex [Mo2O2(H(2)dapsox)(2)]Cl-6 . 4H(2)O (where H(2)dapsox= 2 ' ,2 ' ' '-(2,6-pyridinediyldiethylidenedioxamohydrazide) was obtained. In a similar reaction, starting from La(NO3)(3) . 6H(2)O, the complex [La(H(2)dapsox)(NO3)x](NO3)(3-x).1/2EtOH (x=1,2), having coordination number 9, was obtained. In the latter complex two NO3 groups were bidentately coordinated in the solid state, but only one in the solution. Besides [Mo2O2(TPP)(2)] (TPP = tetraphenylporphyrin), the molybdenum(v) complex [Mo2O2 (H(2)dapsox)(2)]Cl-6 . 4H(2)O is the only other known example of a dimeric mu -oxodimolybdenum(V) species that is paramagnetic (mu = 0.95 BM). One of the Mo atoms has pentagonal bipyramidal coordination, and the other pentagonal pyramidal coordination. In aqueous solution a rare example of a pentagonal pyramidal ion [MoO(dapsox)](+) is presumably present. Solution EPR spectra (at 77 K) cannot be related to either of the two known types of Mo(V) species based on the extent of g anisotropy. The substances also were characterized by IR and electronic spectroscopy, and by thermal analysis.
PB  - Gordon Breach Publishing, Taylor & Francis Group, Philadelphia
T2  - Journal of Coordination Chemistry
T1  - Complexes of molybdenum(V) and lanthanum(III) with 2 ',2 '''-(2,6-pyridinediyldiethylidene)-dioxamohydrazide (H(2)dapsox)
VL  - 53
IS  - 4
SP  - 289
EP  - 300
DO  - 10.1080/00958970108022615
ER  - 

@article{
author = "Anđelković, Katarina K. and Ivanović-Burmazović, Ivana and Gruden-Pavlović, Maja and Niketic, SR",
year = "2001",
abstract = "In a template synthesis from ethanolic solution of MoOCl3, 2,6-diacetylpyridine (dap), and semioxamazide (sox), in the molar ratio 1:1:2, a dimeric molybdenum(V) complex [Mo2O2(H(2)dapsox)(2)]Cl-6 . 4H(2)O (where H(2)dapsox= 2 ' ,2 ' ' '-(2,6-pyridinediyldiethylidenedioxamohydrazide) was obtained. In a similar reaction, starting from La(NO3)(3) . 6H(2)O, the complex [La(H(2)dapsox)(NO3)x](NO3)(3-x).1/2EtOH (x=1,2), having coordination number 9, was obtained. In the latter complex two NO3 groups were bidentately coordinated in the solid state, but only one in the solution. Besides [Mo2O2(TPP)(2)] (TPP = tetraphenylporphyrin), the molybdenum(v) complex [Mo2O2 (H(2)dapsox)(2)]Cl-6 . 4H(2)O is the only other known example of a dimeric mu -oxodimolybdenum(V) species that is paramagnetic (mu = 0.95 BM). One of the Mo atoms has pentagonal bipyramidal coordination, and the other pentagonal pyramidal coordination. In aqueous solution a rare example of a pentagonal pyramidal ion [MoO(dapsox)](+) is presumably present. Solution EPR spectra (at 77 K) cannot be related to either of the two known types of Mo(V) species based on the extent of g anisotropy. The substances also were characterized by IR and electronic spectroscopy, and by thermal analysis.",
publisher = "Gordon Breach Publishing, Taylor & Francis Group, Philadelphia",
journal = "Journal of Coordination Chemistry",
title = "Complexes of molybdenum(V) and lanthanum(III) with 2 ',2 '''-(2,6-pyridinediyldiethylidene)-dioxamohydrazide (H(2)dapsox)",
volume = "53",
number = "4",
pages = "289-300",
doi = "10.1080/00958970108022615"
}

Anđelković, K. K., Ivanović-Burmazović, I., Gruden-Pavlović, M.,& Niketic, S.. (2001). Complexes of molybdenum(V) and lanthanum(III) with 2 ',2 '''-(2,6-pyridinediyldiethylidene)-dioxamohydrazide (H(2)dapsox). in Journal of Coordination Chemistry
Gordon Breach Publishing, Taylor & Francis Group, Philadelphia., 53(4), 289-300.
https://doi.org/10.1080/00958970108022615

Anđelković KK, Ivanović-Burmazović I, Gruden-Pavlović M, Niketic S. Complexes of molybdenum(V) and lanthanum(III) with 2 ',2 '''-(2,6-pyridinediyldiethylidene)-dioxamohydrazide (H(2)dapsox). in Journal of Coordination Chemistry. 2001;53(4):289-300.
doi:10.1080/00958970108022615 .

Anđelković, Katarina K., Ivanović-Burmazović, Ivana, Gruden-Pavlović, Maja, Niketic, SR, "Complexes of molybdenum(V) and lanthanum(III) with 2 ',2 '''-(2,6-pyridinediyldiethylidene)-dioxamohydrazide (H(2)dapsox)" in Journal of Coordination Chemistry, 53, no. 4 (2001):289-300,
https://doi.org/10.1080/00958970108022615 . .

TY  - JOUR
AU  - Anđelković, Katarina K.
AU  - Tellgren, R
AU  - Niketic, SR
AU  - Sladić, Dušan
AU  - Poleti, D
PY  - 1999
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/425
AB  - The title compound was obtained by a template synthesis from 2,6-diacetylpyridine, ethylhydrazinoacetate and CuCl2 . 2H(2)O (molar ratio 1 : 2 : 1, in methanol), and its structure has been determined by single-crystal X-ray diffraction: monoclinic space group P2(1)/c, a = 13.906(5), b = 18.199(6), c = 16.641(6) Angstrom, beta = 107.18(3)degrees and z = 4. The ligand was found to be tridentate in a trigonal-bipyramidal coordination geometry with two chloride ligands. There are two independent complex molecules, one of which is hydrogen bonded to the water of crystallization.
PB  - Kluwer Academic/Plenum Publ, New York
T2  - Journal of Chemical Crystallography
T1  - Crystal and molecular structure of five coordinate copper(II) complex with 2,6-bis[1-(methoxycarbonylmethyl-hydrazono)ethyl] pyridine
VL  - 29
IS  - 5
SP  - 575
EP  - 580
DO  - 10.1023/A:1009500919942
ER  - 

@article{
author = "Anđelković, Katarina K. and Tellgren, R and Niketic, SR and Sladić, Dušan and Poleti, D",
year = "1999",
abstract = "The title compound was obtained by a template synthesis from 2,6-diacetylpyridine, ethylhydrazinoacetate and CuCl2 . 2H(2)O (molar ratio 1 : 2 : 1, in methanol), and its structure has been determined by single-crystal X-ray diffraction: monoclinic space group P2(1)/c, a = 13.906(5), b = 18.199(6), c = 16.641(6) Angstrom, beta = 107.18(3)degrees and z = 4. The ligand was found to be tridentate in a trigonal-bipyramidal coordination geometry with two chloride ligands. There are two independent complex molecules, one of which is hydrogen bonded to the water of crystallization.",
publisher = "Kluwer Academic/Plenum Publ, New York",
journal = "Journal of Chemical Crystallography",
title = "Crystal and molecular structure of five coordinate copper(II) complex with 2,6-bis[1-(methoxycarbonylmethyl-hydrazono)ethyl] pyridine",
volume = "29",
number = "5",
pages = "575-580",
doi = "10.1023/A:1009500919942"
}

Anđelković, K. K., Tellgren, R., Niketic, S., Sladić, D.,& Poleti, D.. (1999). Crystal and molecular structure of five coordinate copper(II) complex with 2,6-bis[1-(methoxycarbonylmethyl-hydrazono)ethyl] pyridine. in Journal of Chemical Crystallography
Kluwer Academic/Plenum Publ, New York., 29(5), 575-580.
https://doi.org/10.1023/A:1009500919942

Anđelković KK, Tellgren R, Niketic S, Sladić D, Poleti D. Crystal and molecular structure of five coordinate copper(II) complex with 2,6-bis[1-(methoxycarbonylmethyl-hydrazono)ethyl] pyridine. in Journal of Chemical Crystallography. 1999;29(5):575-580.
doi:10.1023/A:1009500919942 .

Anđelković, Katarina K., Tellgren, R, Niketic, SR, Sladić, Dušan, Poleti, D, "Crystal and molecular structure of five coordinate copper(II) complex with 2,6-bis[1-(methoxycarbonylmethyl-hydrazono)ethyl] pyridine" in Journal of Chemical Crystallography, 29, no. 5 (1999):575-580,
https://doi.org/10.1023/A:1009500919942 . .

TY  - JOUR
AU  - Zarić, Snežana D.
AU  - Niketic, SR
PY  - 1997
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2594
AB  - The analysis of crystal structures of the series of ammine-nitro cobalt(III) complexes has shown that Co-NO2 bond lengths can be successfully rationalized on the basis of the anisotropic pi-effect of nitro groups. This effect governs both the orientation of the nitro group and the Co-NO2 length, and explains the irregularities in the increase of the latter with the increasing number of NO2 groups present in the coordination sphere. (C) 1997 Elsevier Science Ltd.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Polyhedron
T1  - The anisotropic pi-effect of the nitro group in ammine-nitro cobalt(III) complexes
VL  - 16
IS  - 20
SP  - 3565
EP  - 3569
DO  - 10.1016/S0277-5387(97)00112-5
ER  - 

@article{
author = "Zarić, Snežana D. and Niketic, SR",
year = "1997",
abstract = "The analysis of crystal structures of the series of ammine-nitro cobalt(III) complexes has shown that Co-NO2 bond lengths can be successfully rationalized on the basis of the anisotropic pi-effect of nitro groups. This effect governs both the orientation of the nitro group and the Co-NO2 length, and explains the irregularities in the increase of the latter with the increasing number of NO2 groups present in the coordination sphere. (C) 1997 Elsevier Science Ltd.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Polyhedron",
title = "The anisotropic pi-effect of the nitro group in ammine-nitro cobalt(III) complexes",
volume = "16",
number = "20",
pages = "3565-3569",
doi = "10.1016/S0277-5387(97)00112-5"
}

Zarić, S. D.,& Niketic, S.. (1997). The anisotropic pi-effect of the nitro group in ammine-nitro cobalt(III) complexes. in Polyhedron
Pergamon-Elsevier Science Ltd, Oxford., 16(20), 3565-3569.
https://doi.org/10.1016/S0277-5387(97)00112-5

Zarić SD, Niketic S. The anisotropic pi-effect of the nitro group in ammine-nitro cobalt(III) complexes. in Polyhedron. 1997;16(20):3565-3569.
doi:10.1016/S0277-5387(97)00112-5 .

Zarić, Snežana D., Niketic, SR, "The anisotropic pi-effect of the nitro group in ammine-nitro cobalt(III) complexes" in Polyhedron, 16, no. 20 (1997):3565-3569,
https://doi.org/10.1016/S0277-5387(97)00112-5 . .

TY  - JOUR
AU  - Anđelković, Katarina K.
AU  - Ivanović, I.
AU  - Niketic, SR
AU  - Prelesnik, B
AU  - Leovac, Vukadin M.
PY  - 1997
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2601
AB  - In a template synthesis from copper(II) acetate, 2,6-diacetylpyridine, and semioxamazide (NH2CO CONHNH2), two new copper(II) complexes, [Cu(dapsox)(H2O)]. H2O and [Cu(Hdapsox)(H2O)]ClO4, (where H(2)dapsox = 2',2'''-(2,6-pyridindiyldiethylidene)dioxamohydrazide) were obtained and characterized. The structure of the former complex was determined by a single-crystal X-ray analysis. Cu-II is located in a square pyramidal environment. The polydentate ligand, dapsox(2-), is coordinated in dianionic form, as an unsymmetrical quadridentate planar system forming one six-membered and two five-membered metal-chelate rings. The fifth coordination site is occupied by a water molecule. (C) 1997 Elsevier Science Ltd.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Polyhedron
T1  - Synthesis and structure of aqua-2',2'''-(2,6-pyridindiyldiethylidene) dioxamohydrazide-copper(II) hydrate
VL  - 16
IS  - 24
SP  - 4221
EP  - 4228
DO  - 10.1016/S0277-5387(97)00265-9
ER  - 

@article{
author = "Anđelković, Katarina K. and Ivanović, I. and Niketic, SR and Prelesnik, B and Leovac, Vukadin M.",
year = "1997",
abstract = "In a template synthesis from copper(II) acetate, 2,6-diacetylpyridine, and semioxamazide (NH2CO CONHNH2), two new copper(II) complexes, [Cu(dapsox)(H2O)]. H2O and [Cu(Hdapsox)(H2O)]ClO4, (where H(2)dapsox = 2',2'''-(2,6-pyridindiyldiethylidene)dioxamohydrazide) were obtained and characterized. The structure of the former complex was determined by a single-crystal X-ray analysis. Cu-II is located in a square pyramidal environment. The polydentate ligand, dapsox(2-), is coordinated in dianionic form, as an unsymmetrical quadridentate planar system forming one six-membered and two five-membered metal-chelate rings. The fifth coordination site is occupied by a water molecule. (C) 1997 Elsevier Science Ltd.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Polyhedron",
title = "Synthesis and structure of aqua-2',2'''-(2,6-pyridindiyldiethylidene) dioxamohydrazide-copper(II) hydrate",
volume = "16",
number = "24",
pages = "4221-4228",
doi = "10.1016/S0277-5387(97)00265-9"
}

Anđelković, K. K., Ivanović, I., Niketic, S., Prelesnik, B.,& Leovac, V. M.. (1997). Synthesis and structure of aqua-2',2'''-(2,6-pyridindiyldiethylidene) dioxamohydrazide-copper(II) hydrate. in Polyhedron
Pergamon-Elsevier Science Ltd, Oxford., 16(24), 4221-4228.
https://doi.org/10.1016/S0277-5387(97)00265-9

Anđelković KK, Ivanović I, Niketic S, Prelesnik B, Leovac VM. Synthesis and structure of aqua-2',2'''-(2,6-pyridindiyldiethylidene) dioxamohydrazide-copper(II) hydrate. in Polyhedron. 1997;16(24):4221-4228.
doi:10.1016/S0277-5387(97)00265-9 .

Anđelković, Katarina K., Ivanović, I., Niketic, SR, Prelesnik, B, Leovac, Vukadin M., "Synthesis and structure of aqua-2',2'''-(2,6-pyridindiyldiethylidene) dioxamohydrazide-copper(II) hydrate" in Polyhedron, 16, no. 24 (1997):4221-4228,
https://doi.org/10.1016/S0277-5387(97)00265-9 . .