TY  - JOUR
AU  - Vuckovic, G
AU  - Antonijevic-Nikolic, M
AU  - Korabik, M
AU  - Mrozinski, J
AU  - Manojlović, Dragan D.
AU  - Gojgić-Cvijović, Gordana D.
AU  - Matsumoto, N
PY  - 2005
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/699
AB  - Three complexes: [Cu-2(C6H5COO)tpmc](ClO4)(3)center dot CH3OH, (A), (tpmc = N,N',N'',N''' tetrakis(2-pyridilmethyl)-1,4,8,11-tetraazacyclotetradecane), [Cu-2(Hpht)tpmc](ClO4)(3)center dot 3H(2)O (H(2)pht = phtalic acid) (B) and [Cu-4(ipht)(tpmc)(2)](ClO4)(6)center dot NaClO(4)center dot 2CH(3)CN(H(2)ipht = isophtalic acid) (C) previously described were investigated by magnetic measurements, cyclic voltammetry (CV) and were tested towards some strains of microorganisms. It is found that all three complexes were electrochemically stable in the investigated ranges. The least stable was mu-ipht-complex (C) due to the reaction of central ion, which is seen from weak peaks in its cyclic voltammogram. Complexes were characterized by variable temperature magnetic measurements (4.2-300 K) and the observed data were successfully simulated by the equation based on the spin Hamiltonian operator, (H) over cap = -2J (S) over cap (1)(S) over cap (2), giving the ferromagnetic exchange parameters J = 0.92 cm(-1) for A, J = 0.55 cm(-1) for B and J = 0.65 cm(-1) for C. For the complex C model of molecular magnet with two magnetically isolated dimeric subunits was used. These results indicate the presence of weak ferromagnetic spin exchange interaction between the Cu-II magnetic centers within each molecule.
PB  - Polish Chemical Society, Warsaw
T2  - Polish Journal of Chemistry
T1  - Magnetic, electrochemical and antimicrobial properties of some Cu(II) complexes with TPMC
VL  - 79
IS  - 4
SP  - 679
EP  - 687
UR  - https://hdl.handle.net/21.15107/rcub_cherry_699
ER  - 

@article{
author = "Vuckovic, G and Antonijevic-Nikolic, M and Korabik, M and Mrozinski, J and Manojlović, Dragan D. and Gojgić-Cvijović, Gordana D. and Matsumoto, N",
year = "2005",
abstract = "Three complexes: [Cu-2(C6H5COO)tpmc](ClO4)(3)center dot CH3OH, (A), (tpmc = N,N',N'',N''' tetrakis(2-pyridilmethyl)-1,4,8,11-tetraazacyclotetradecane), [Cu-2(Hpht)tpmc](ClO4)(3)center dot 3H(2)O (H(2)pht = phtalic acid) (B) and [Cu-4(ipht)(tpmc)(2)](ClO4)(6)center dot NaClO(4)center dot 2CH(3)CN(H(2)ipht = isophtalic acid) (C) previously described were investigated by magnetic measurements, cyclic voltammetry (CV) and were tested towards some strains of microorganisms. It is found that all three complexes were electrochemically stable in the investigated ranges. The least stable was mu-ipht-complex (C) due to the reaction of central ion, which is seen from weak peaks in its cyclic voltammogram. Complexes were characterized by variable temperature magnetic measurements (4.2-300 K) and the observed data were successfully simulated by the equation based on the spin Hamiltonian operator, (H) over cap = -2J (S) over cap (1)(S) over cap (2), giving the ferromagnetic exchange parameters J = 0.92 cm(-1) for A, J = 0.55 cm(-1) for B and J = 0.65 cm(-1) for C. For the complex C model of molecular magnet with two magnetically isolated dimeric subunits was used. These results indicate the presence of weak ferromagnetic spin exchange interaction between the Cu-II magnetic centers within each molecule.",
publisher = "Polish Chemical Society, Warsaw",
journal = "Polish Journal of Chemistry",
title = "Magnetic, electrochemical and antimicrobial properties of some Cu(II) complexes with TPMC",
volume = "79",
number = "4",
pages = "679-687",
url = "https://hdl.handle.net/21.15107/rcub_cherry_699"
}

Vuckovic, G., Antonijevic-Nikolic, M., Korabik, M., Mrozinski, J., Manojlović, D. D., Gojgić-Cvijović, G. D.,& Matsumoto, N.. (2005). Magnetic, electrochemical and antimicrobial properties of some Cu(II) complexes with TPMC. in Polish Journal of Chemistry
Polish Chemical Society, Warsaw., 79(4), 679-687.
https://hdl.handle.net/21.15107/rcub_cherry_699

Vuckovic G, Antonijevic-Nikolic M, Korabik M, Mrozinski J, Manojlović DD, Gojgić-Cvijović GD, Matsumoto N. Magnetic, electrochemical and antimicrobial properties of some Cu(II) complexes with TPMC. in Polish Journal of Chemistry. 2005;79(4):679-687.
https://hdl.handle.net/21.15107/rcub_cherry_699 .

Vuckovic, G, Antonijevic-Nikolic, M, Korabik, M, Mrozinski, J, Manojlović, Dragan D., Gojgić-Cvijović, Gordana D., Matsumoto, N, "Magnetic, electrochemical and antimicrobial properties of some Cu(II) complexes with TPMC" in Polish Journal of Chemistry, 79, no. 4 (2005):679-687,
https://hdl.handle.net/21.15107/rcub_cherry_699 .

TY  - JOUR
AU  - Živković-Radovanović, Vukosava
AU  - Vuckovic, G
PY  - 2005
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/721
AB  - Silica gel impregnated with poly(ethylene glycol) of different molecular mass (400, 1000, 1540, 4000, and 5500) was investigated for salting-out thin-layer chromatography of 15 mixed aminocarboxylato Co(III) complexes using eight ammonium sulphate solutions as mobile phases. Regularities established earlier for non-impregnated adsorbents are also valid in this work. Poly(ethylene glycol) of high molecular mass increases the hydrophobicity of the adsorbent. Positive linear dependence of R-M values and of salting-out efficiency on average poly(ethylene glycol) molecular mass was usually observed. In contrast with non-impregnated silica gel, separation was achieved between complexes with the smallest hydrocarbon groups.
PB  - Vieweg, Wiesbaden
T2  - Chromatographia
T1  - Poly(ethylene glycol) as impregnator for silica gel in salting-out thin-layer chromatography of some Co(III) complexes
VL  - 62
IS  - 1-2
SP  - 91
EP  - 97
DO  - 10.1365/s10337-005-0580-1
ER  - 

@article{
author = "Živković-Radovanović, Vukosava and Vuckovic, G",
year = "2005",
abstract = "Silica gel impregnated with poly(ethylene glycol) of different molecular mass (400, 1000, 1540, 4000, and 5500) was investigated for salting-out thin-layer chromatography of 15 mixed aminocarboxylato Co(III) complexes using eight ammonium sulphate solutions as mobile phases. Regularities established earlier for non-impregnated adsorbents are also valid in this work. Poly(ethylene glycol) of high molecular mass increases the hydrophobicity of the adsorbent. Positive linear dependence of R-M values and of salting-out efficiency on average poly(ethylene glycol) molecular mass was usually observed. In contrast with non-impregnated silica gel, separation was achieved between complexes with the smallest hydrocarbon groups.",
publisher = "Vieweg, Wiesbaden",
journal = "Chromatographia",
title = "Poly(ethylene glycol) as impregnator for silica gel in salting-out thin-layer chromatography of some Co(III) complexes",
volume = "62",
number = "1-2",
pages = "91-97",
doi = "10.1365/s10337-005-0580-1"
}

Živković-Radovanović, V.,& Vuckovic, G.. (2005). Poly(ethylene glycol) as impregnator for silica gel in salting-out thin-layer chromatography of some Co(III) complexes. in Chromatographia
Vieweg, Wiesbaden., 62(1-2), 91-97.
https://doi.org/10.1365/s10337-005-0580-1

Živković-Radovanović V, Vuckovic G. Poly(ethylene glycol) as impregnator for silica gel in salting-out thin-layer chromatography of some Co(III) complexes. in Chromatographia. 2005;62(1-2):91-97.
doi:10.1365/s10337-005-0580-1 .

Živković-Radovanović, Vukosava, Vuckovic, G, "Poly(ethylene glycol) as impregnator for silica gel in salting-out thin-layer chromatography of some Co(III) complexes" in Chromatographia, 62, no. 1-2 (2005):91-97,
https://doi.org/10.1365/s10337-005-0580-1 . .

TY  - JOUR
AU  - Vuckovic, G
AU  - Tanaskovic, SB
AU  - Janjic, TJ
AU  - Milojković-Opsenica, Dušanka
AU  - Celap, MB
PY  - 1999
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/429
AB  - The effect of enlargement of the chelate ring size in Co(III) complexes containing bidentate aminocarboxylato and/or diamine ligands on their R-F values in salting-out chromatography has been investigated on thin layers of silica gel, cellulose, polyacrylonitrile, and CN-modified silica gel. Salting-out was achieved with aqueous solutions of ammonium sulfate, Enlargement of the chelate ring caused a decrease in the R-F values of the complexes. By use of linear regression analysis and the theory of error propagation it was established that the logarithms of the separation factors of the pairs of compounds investigated were either unaffected or changed only slightly with changing concentration of salt in the mobile phase; this could not be established for certain on the basis of R-F values alone. Complete correlation was established between the chromatographic behavior of the complexes and the previously investigated effect of successive enlargement of the rings in cobalt(III) complexes containing hexadentate ligands of the EDTA type. The corresponding separation mechanism of the pairs of compounds investigated was also considered. It was finally established that the regularities mentioned were independent of the adsorbent used.
PB  - Springer Hungarica Kiado Kft, Budapest
T2  - Journal of Planar Chromatography: Modern TLC / Thin Layer Chromatography
T1  - Effect of increasing the bidentate chelate ring size in Co(III) complexes on their behavior in salting-out TLC on different adsorbents
VL  - 12
IS  - 6
SP  - 461
EP  - 465
UR  - https://hdl.handle.net/21.15107/rcub_cherry_429
ER  - 

@article{
author = "Vuckovic, G and Tanaskovic, SB and Janjic, TJ and Milojković-Opsenica, Dušanka and Celap, MB",
year = "1999",
abstract = "The effect of enlargement of the chelate ring size in Co(III) complexes containing bidentate aminocarboxylato and/or diamine ligands on their R-F values in salting-out chromatography has been investigated on thin layers of silica gel, cellulose, polyacrylonitrile, and CN-modified silica gel. Salting-out was achieved with aqueous solutions of ammonium sulfate, Enlargement of the chelate ring caused a decrease in the R-F values of the complexes. By use of linear regression analysis and the theory of error propagation it was established that the logarithms of the separation factors of the pairs of compounds investigated were either unaffected or changed only slightly with changing concentration of salt in the mobile phase; this could not be established for certain on the basis of R-F values alone. Complete correlation was established between the chromatographic behavior of the complexes and the previously investigated effect of successive enlargement of the rings in cobalt(III) complexes containing hexadentate ligands of the EDTA type. The corresponding separation mechanism of the pairs of compounds investigated was also considered. It was finally established that the regularities mentioned were independent of the adsorbent used.",
publisher = "Springer Hungarica Kiado Kft, Budapest",
journal = "Journal of Planar Chromatography: Modern TLC / Thin Layer Chromatography",
title = "Effect of increasing the bidentate chelate ring size in Co(III) complexes on their behavior in salting-out TLC on different adsorbents",
volume = "12",
number = "6",
pages = "461-465",
url = "https://hdl.handle.net/21.15107/rcub_cherry_429"
}

Vuckovic, G., Tanaskovic, S., Janjic, T., Milojković-Opsenica, D.,& Celap, M.. (1999). Effect of increasing the bidentate chelate ring size in Co(III) complexes on their behavior in salting-out TLC on different adsorbents. in Journal of Planar Chromatography: Modern TLC / Thin Layer Chromatography
Springer Hungarica Kiado Kft, Budapest., 12(6), 461-465.
https://hdl.handle.net/21.15107/rcub_cherry_429

Vuckovic G, Tanaskovic S, Janjic T, Milojković-Opsenica D, Celap M. Effect of increasing the bidentate chelate ring size in Co(III) complexes on their behavior in salting-out TLC on different adsorbents. in Journal of Planar Chromatography: Modern TLC / Thin Layer Chromatography. 1999;12(6):461-465.
https://hdl.handle.net/21.15107/rcub_cherry_429 .

Vuckovic, G, Tanaskovic, SB, Janjic, TJ, Milojković-Opsenica, Dušanka, Celap, MB, "Effect of increasing the bidentate chelate ring size in Co(III) complexes on their behavior in salting-out TLC on different adsorbents" in Journal of Planar Chromatography: Modern TLC / Thin Layer Chromatography, 12, no. 6 (1999):461-465,
https://hdl.handle.net/21.15107/rcub_cherry_429 .

TY  - JOUR
AU  - Miodragović, Zoran
AU  - Vuckovic, G
AU  - Sovilj, Sofija P.
AU  - Manojlović, Dragan D.
AU  - Malinar, M.J.
PY  - 1998
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/396
AB  - Four new Cu(II) and Co(II) complexes having an octaazamacrocyclic ligand derived from cyclam, N,N'N,",N'''-tetrakis(2-pyridylmethyl)-1,4,8,11-tetraazacyclotetradecane, with either an mu-carbonato, oxalato or malonato as the additional ligand were isolated and investigated by elemental analysis, electronic and IR spectroscopy, as well as molar conductivity, magnetic and cyclic voltammetry (CV) measurements. Their microbiological activity was also tested. Binuclear or tetranuclear structures, depending on the bridging ligand and metal ion, was proposed.
PB  - Serbian Chemical Soc, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Carbonate, oxalato and malonato bridged Cu(II) and Co(II) complexes with an octaazamacrocyclic ligand
VL  - 63
IS  - 10
SP  - 781
EP  - 791
UR  - https://hdl.handle.net/21.15107/rcub_cherry_396
ER  - 

@article{
author = "Miodragović, Zoran and Vuckovic, G and Sovilj, Sofija P. and Manojlović, Dragan D. and Malinar, M.J.",
year = "1998",
abstract = "Four new Cu(II) and Co(II) complexes having an octaazamacrocyclic ligand derived from cyclam, N,N'N,",N'''-tetrakis(2-pyridylmethyl)-1,4,8,11-tetraazacyclotetradecane, with either an mu-carbonato, oxalato or malonato as the additional ligand were isolated and investigated by elemental analysis, electronic and IR spectroscopy, as well as molar conductivity, magnetic and cyclic voltammetry (CV) measurements. Their microbiological activity was also tested. Binuclear or tetranuclear structures, depending on the bridging ligand and metal ion, was proposed.",
publisher = "Serbian Chemical Soc, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Carbonate, oxalato and malonato bridged Cu(II) and Co(II) complexes with an octaazamacrocyclic ligand",
volume = "63",
number = "10",
pages = "781-791",
url = "https://hdl.handle.net/21.15107/rcub_cherry_396"
}

Miodragović, Z., Vuckovic, G., Sovilj, S. P., Manojlović, D. D.,& Malinar, M.J.. (1998). Carbonate, oxalato and malonato bridged Cu(II) and Co(II) complexes with an octaazamacrocyclic ligand. in Journal of the Serbian Chemical Society
Serbian Chemical Soc, Belgrade., 63(10), 781-791.
https://hdl.handle.net/21.15107/rcub_cherry_396

Miodragović Z, Vuckovic G, Sovilj SP, Manojlović DD, Malinar M. Carbonate, oxalato and malonato bridged Cu(II) and Co(II) complexes with an octaazamacrocyclic ligand. in Journal of the Serbian Chemical Society. 1998;63(10):781-791.
https://hdl.handle.net/21.15107/rcub_cherry_396 .

Miodragović, Zoran, Vuckovic, G, Sovilj, Sofija P., Manojlović, Dragan D., Malinar, M.J., "Carbonate, oxalato and malonato bridged Cu(II) and Co(II) complexes with an octaazamacrocyclic ligand" in Journal of the Serbian Chemical Society, 63, no. 10 (1998):781-791,
https://hdl.handle.net/21.15107/rcub_cherry_396 .