Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya, volume 35, issue 1, pages 65-72

Complexation between decamethyl-3,3'-bis(dipyrrolylmethene) and zinc(II), copper(II), and cobalt(II) acetates

Publication typeJournal Article
Publication date2009-01-01
Quartile SCImago
Q3
Quartile WOS
Q3
Impact factor1.9
ISSN10703284, 16083318
General Chemistry
General Chemical Engineering
Abstract
Decamethyl-3,3′-bis(dipyrrolylmethene) dihydrobromide H2L · 2HBr (H2L is bis(3,4,7,8,9-pentamethylpyrrol-3-yl)methane), which is the simplest representative of a novel class of oligo(dipyrrolylmethenes) belonging to chromophore chelating nonmacrocyclic ligands, were examined by 1H NMR, IR, and electronic absorption spectroscopy. Complexation reactions of H2L · 2HBr with M(AcO)2 (M = Zn(II), Cu(II), and Co(II)) in DMF at 298.15 K were monitored by electronic absorption spectroscopy and studied by the molar ratio method. The thermodynamic constants K 0 of these reactions were estimated. The d metal ions coordinate H2L to give the binuclear homoleptic complexes [M2L2]. The reactions proceed through the intermediate binuclear heteroleptic complex [M2L(AcO)2] detected by spectroscopic methods. The thermodynamic stabilities of [M2L2] and [M2L(AcO)2] increase when moving from Cu(II) to Zn(II) and Co(II). The probability of formation and stability of [M2L2] containing 3,3′-bis(dipyrrolylmethene) are substantially higher than those of analogous complexes with the 2,2′-isomer (decamethyl-2,2′-biladienea, c). The low K 0 values for the complexation between H2L and Cu(AcO)2 are due to slow oxidation of the biladiene ligand into a bilatriene with participation of Cu2+ ions.

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Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya
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Guseva G. B. et al. Complexation between decamethyl-3,3'-bis(dipyrrolylmethene) and zinc(II), copper(II), and cobalt(II) acetates // Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya. 2009. Vol. 35. No. 1. pp. 65-72.
GOST all authors (up to 50) Copy
Guseva G. B., Dudina N. A., Antina E. V., Vyugin A. I., Semeikin A. S. Complexation between decamethyl-3,3'-bis(dipyrrolylmethene) and zinc(II), copper(II), and cobalt(II) acetates // Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya. 2009. Vol. 35. No. 1. pp. 65-72.
RIS |
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TY - JOUR
DO - 10.1134/S1070328409010138
UR - https://doi.org/10.1134%2FS1070328409010138
TI - Complexation between decamethyl-3,3'-bis(dipyrrolylmethene) and zinc(II), copper(II), and cobalt(II) acetates
T2 - Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya
AU - Dudina, N A
AU - Vyugin, A I
AU - Guseva, G B
AU - Antina, E V
AU - Semeikin, A S
PY - 2009
DA - 2009/01/01 00:00:00
PB - Pleiades Publishing
SP - 65-72
IS - 1
VL - 35
SN - 1070-3284
SN - 1608-3318
ER -
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@article{2009_Guseva
author = {N A Dudina and A I Vyugin and G B Guseva and E V Antina and A S Semeikin},
title = {Complexation between decamethyl-3,3'-bis(dipyrrolylmethene) and zinc(II), copper(II), and cobalt(II) acetates},
journal = {Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya},
year = {2009},
volume = {35},
publisher = {Pleiades Publishing},
month = {jan},
url = {https://doi.org/10.1134%2FS1070328409010138},
number = {1},
pages = {65--72},
doi = {10.1134/S1070328409010138}
}
MLA
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Guseva, G. B., et al. “Complexation between decamethyl-3,3'-bis(dipyrrolylmethene) and zinc(II), copper(II), and cobalt(II) acetates.” Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya, vol. 35, no. 1, Jan. 2009, pp. 65-72. https://doi.org/10.1134%2FS1070328409010138.
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