Complexes of molybdenum(V) and lanthanum(III) with 2 ',2 '''-(2,6-pyridinediyldiethylidene)-dioxamohydrazide (H(2)dapsox)
Апстракт
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.
Кључне речи:
molybdenum(V) / lanthanum(III) / multidentate complexes / polydentatesИзвор:
Journal of Coordination Chemistry, 2001, 53, 4, 289-300Издавач:
- Gordon Breach Publishing, Taylor & Francis Group, Philadelphia
DOI: 10.1080/00958970108022615
ISSN: 0095-8972
WoS: 000170024600002
Scopus: 2-s2.0-0035552934
Колекције
Институција/група
Hemijski fakultet / Faculty of ChemistryTY - 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 . .