Heteroligand cobalt(II) complexes with some aromatic acid hydrazides and L-histidine
Bіomplex formation in the ternary systems cobalt(II) – benzoic / p-methoxybenzoic / o-hydroxybenzoic acid hydrazide – L-histidine has been studied by the methods of spectrophotometry and mathematical modelling in the aqueous solutions with 1.0 mol dm–3 KNO3 as a background. The formation constants a...
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Kazan Federal University
2019-03-01
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| Series: | Учёные записки Казанского университета: Серия Естественные науки |
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| Online Access: | https://kpfu.ru/uz-eng-ns-2019-1-3.html |
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| author | N.V. Troshanin T.I. Bychkova |
| author_facet | N.V. Troshanin T.I. Bychkova |
| author_sort | N.V. Troshanin |
| collection | DOAJ |
| description | Bіomplex formation in the ternary systems cobalt(II) – benzoic / p-methoxybenzoic / o-hydroxybenzoic acid hydrazide – L-histidine has been studied by the methods of spectrophotometry and mathematical modelling in the aqueous solutions with 1.0 mol dm–3 KNO3 as a background. The formation constants and spectral parameters of homo- and heteroligand complexes have been determined. It has been shown that the stability of the complexes formed with o-hydroxybenzoic acid hydrazide was higher than that with p-methoxybenzoic and benzoic acid hydrazides. Extra stabilization of the heteroligand complexes has been identified and interpreted. The quantum-chemical optimization of the cobalt(II) heteroligand complex structure containing the single-charged anionic form of o-hydroxybenzoic acid hydrazide and histidine zwitterion has been carried out. |
| format | Article |
| id | doaj-art-0adf40c4ba194e06978020f350b9948c |
| institution | Kabale University |
| issn | 2542-064X 2500-218X |
| language | English |
| publishDate | 2019-03-01 |
| publisher | Kazan Federal University |
| record_format | Article |
| series | Учёные записки Казанского университета: Серия Естественные науки |
| spelling | doaj-art-0adf40c4ba194e06978020f350b9948c2025-01-03T00:34:02ZengKazan Federal UniversityУчёные записки Казанского университета: Серия Естественные науки2542-064X2500-218X2019-03-011611314110.26907/2542-064X.2019.1.31-41Heteroligand cobalt(II) complexes with some aromatic acid hydrazides and L-histidineN.V. Troshanin0T.I. Bychkova1Kazan Federal University, Kazan, 420008 RussiaKazan Federal University, Kazan, 420008 RussiaBіomplex formation in the ternary systems cobalt(II) – benzoic / p-methoxybenzoic / o-hydroxybenzoic acid hydrazide – L-histidine has been studied by the methods of spectrophotometry and mathematical modelling in the aqueous solutions with 1.0 mol dm–3 KNO3 as a background. The formation constants and spectral parameters of homo- and heteroligand complexes have been determined. It has been shown that the stability of the complexes formed with o-hydroxybenzoic acid hydrazide was higher than that with p-methoxybenzoic and benzoic acid hydrazides. Extra stabilization of the heteroligand complexes has been identified and interpreted. The quantum-chemical optimization of the cobalt(II) heteroligand complex structure containing the single-charged anionic form of o-hydroxybenzoic acid hydrazide and histidine zwitterion has been carried out.https://kpfu.ru/uz-eng-ns-2019-1-3.htmlspectrophotometrymathematical modellingcomplex formationcobalt(ii)benzoic acid hydrazidep-methoxybenzoic acid hydrazideo-hydroxybenzoic acid hydrazidel-histidine |
| spellingShingle | N.V. Troshanin T.I. Bychkova Heteroligand cobalt(II) complexes with some aromatic acid hydrazides and L-histidine Учёные записки Казанского университета: Серия Естественные науки spectrophotometry mathematical modelling complex formation cobalt(ii) benzoic acid hydrazide p-methoxybenzoic acid hydrazide o-hydroxybenzoic acid hydrazide l-histidine |
| title | Heteroligand cobalt(II) complexes with some aromatic acid hydrazides and L-histidine |
| title_full | Heteroligand cobalt(II) complexes with some aromatic acid hydrazides and L-histidine |
| title_fullStr | Heteroligand cobalt(II) complexes with some aromatic acid hydrazides and L-histidine |
| title_full_unstemmed | Heteroligand cobalt(II) complexes with some aromatic acid hydrazides and L-histidine |
| title_short | Heteroligand cobalt(II) complexes with some aromatic acid hydrazides and L-histidine |
| title_sort | heteroligand cobalt ii complexes with some aromatic acid hydrazides and l histidine |
| topic | spectrophotometry mathematical modelling complex formation cobalt(ii) benzoic acid hydrazide p-methoxybenzoic acid hydrazide o-hydroxybenzoic acid hydrazide l-histidine |
| url | https://kpfu.ru/uz-eng-ns-2019-1-3.html |
| work_keys_str_mv | AT nvtroshanin heteroligandcobaltiicomplexeswithsomearomaticacidhydrazidesandlhistidine AT tibychkova heteroligandcobaltiicomplexeswithsomearomaticacidhydrazidesandlhistidine |