Heteroligand copper(II), nickel(II), and cobalt(II) complexes with isonicotinic acid hydrazide and L-histidine
Complex formation in the ternary systems copper(II)/nickel(II)/cobalt(II) – isonicotinic acid hydrazide – L-histidine was studied by the methods of spectrophotometry and mathematical modeling in an aqueous solution with 0.1 mol dm–3 KNO3 as a background electrolyte. The compositions, formation const...
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Kazan Federal University
2021-03-01
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| Series: | Учёные записки Казанского университета: Серия Естественные науки |
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| Online Access: | https://kpfu.ru/uz-eng-ns-2021-1-4.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 | Complex formation in the ternary systems copper(II)/nickel(II)/cobalt(II) – isonicotinic acid hydrazide – L-histidine was studied by the methods of spectrophotometry and mathematical modeling in an aqueous solution with 0.1 mol dm–3 KNO3 as a background electrolyte. The compositions, formation constants, and spectral parameters of the heteroligand complexes with a metal/hydrazide/amino acid ratio of 1:1:1 were determined. It was found that the heteroligand complexes with the neutral form of isonicotinic acid hydrazide have higher stability values than those with the protonated form. The stability of bis- and tris-complexes of the same composition in the series copper(II) – nickel(II) – cobalt(II) is in agreement with the Irving–Williams order. Three isomers of the heteroligand complex of nickel(II) with the protonated form of isonicotinic acid hydrazide and histidine zwitterion were optimized by the method of molecular mechanics. In the system with cobalt(II), a reversible interaction with atmospheric oxygen was revealed. |
| format | Article |
| id | doaj-art-2db1d2d984064d749d665af89e9115ac |
| institution | DOAJ |
| issn | 2542-064X 2500-218X |
| language | English |
| publishDate | 2021-03-01 |
| publisher | Kazan Federal University |
| record_format | Article |
| series | Учёные записки Казанского университета: Серия Естественные науки |
| spelling | doaj-art-2db1d2d984064d749d665af89e9115ac2025-08-20T02:43:55ZengKazan Federal UniversityУчёные записки Казанского университета: Серия Естественные науки2542-064X2500-218X2021-03-011631456010.26907/2542-064X.2021.1.45-60Heteroligand copper(II), nickel(II), and cobalt(II) complexes with isonicotinic acid hydrazide and L-histidineN.V. Troshanin0T.I. Bychkova1Kazan Federal University, Kazan, 420008 RussiaKazan Federal University, Kazan, 420008 RussiaComplex formation in the ternary systems copper(II)/nickel(II)/cobalt(II) – isonicotinic acid hydrazide – L-histidine was studied by the methods of spectrophotometry and mathematical modeling in an aqueous solution with 0.1 mol dm–3 KNO3 as a background electrolyte. The compositions, formation constants, and spectral parameters of the heteroligand complexes with a metal/hydrazide/amino acid ratio of 1:1:1 were determined. It was found that the heteroligand complexes with the neutral form of isonicotinic acid hydrazide have higher stability values than those with the protonated form. The stability of bis- and tris-complexes of the same composition in the series copper(II) – nickel(II) – cobalt(II) is in agreement with the Irving–Williams order. Three isomers of the heteroligand complex of nickel(II) with the protonated form of isonicotinic acid hydrazide and histidine zwitterion were optimized by the method of molecular mechanics. In the system with cobalt(II), a reversible interaction with atmospheric oxygen was revealed.https://kpfu.ru/uz-eng-ns-2021-1-4.htmlspectrophotometryph-metrymathematical modelingcomplex formationcopper(ii)nickel(ii)cobalt(ii)isonicotinic acid hydrazidel-histidine |
| spellingShingle | N.V. Troshanin T.I. Bychkova Heteroligand copper(II), nickel(II), and cobalt(II) complexes with isonicotinic acid hydrazide and L-histidine Учёные записки Казанского университета: Серия Естественные науки spectrophotometry ph-metry mathematical modeling complex formation copper(ii) nickel(ii) cobalt(ii) isonicotinic acid hydrazide l-histidine |
| title | Heteroligand copper(II), nickel(II), and cobalt(II) complexes with isonicotinic acid hydrazide and L-histidine |
| title_full | Heteroligand copper(II), nickel(II), and cobalt(II) complexes with isonicotinic acid hydrazide and L-histidine |
| title_fullStr | Heteroligand copper(II), nickel(II), and cobalt(II) complexes with isonicotinic acid hydrazide and L-histidine |
| title_full_unstemmed | Heteroligand copper(II), nickel(II), and cobalt(II) complexes with isonicotinic acid hydrazide and L-histidine |
| title_short | Heteroligand copper(II), nickel(II), and cobalt(II) complexes with isonicotinic acid hydrazide and L-histidine |
| title_sort | heteroligand copper ii nickel ii and cobalt ii complexes with isonicotinic acid hydrazide and l histidine |
| topic | spectrophotometry ph-metry mathematical modeling complex formation copper(ii) nickel(ii) cobalt(ii) isonicotinic acid hydrazide l-histidine |
| url | https://kpfu.ru/uz-eng-ns-2021-1-4.html |
| work_keys_str_mv | AT nvtroshanin heteroligandcopperiinickeliiandcobaltiicomplexeswithisonicotinicacidhydrazideandlhistidine AT tibychkova heteroligandcopperiinickeliiandcobaltiicomplexeswithisonicotinicacidhydrazideandlhistidine |