Formation kinetics of heteroligand Ni(II) complex with alkyl-substituted 2,2′-dipyrrolylmethenes

The formation kinetics of heteroligand Ni(II) complexes with alkylated dipyrrolylmethenes of symmetric and asymmetric structure was studied. The kinetic and activation parameters of the reactions were determined. The spectral and kinetic data obtained, as well as available data on the solvation of N...

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Bibliographic Details
Published in:Russian journal of inorganic chemistry 2011-09, Vol.56 (9), p.1487-1490
Main Authors: Rumyantsev, E. V., Desoki, A., Marfin, Yu. S., Antina, E. V.
Format: Article
Language:English
Subjects:
Activation
Asymmetry
Chemistry
Chemistry and Materials Science
Complex formation
Inorganic Chemistry
Ligands
Physical Chemistry of Solutions
Reaction kinetics
Solvation
Solvents
Spectra
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Summary:The formation kinetics of heteroligand Ni(II) complexes with alkylated dipyrrolylmethenes of symmetric and asymmetric structure was studied. The kinetic and activation parameters of the reactions were determined. The spectral and kinetic data obtained, as well as available data on the solvation of Ni(II) acetate in electron-donor solvents, allowed us to propose an associatively activated concerted mechanism. The Ni(II) complex formation is mainly determined by the rate of substitution of the entering ligand for solvent molecules in the initial Ni(II) complex, that is, by creation of conditions for efficient donor-acceptor interaction.
ISSN:0036-0236
1531-8613
DOI:10.1134/S003602361109021X