Complexing of zinc and eosin porphyrins with viologens in aqueous solutions

Autor: N. K. Khannanov, V.E. Maier, Vladimir A. Kuzmin, Peter P. Levin, V. Ya. Shafirovich
Rok vydání: 1989
Předmět:
Zdroj: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 38:231-235
ISSN: 1573-9171
0568-5230
DOI: 10.1007/bf00953602
Popis: 1. The complexing constants of eosin (ZD=−2) and zinc porphyrins (ZD=+4, −4) with charged viologens (ZA=0 to +4) with different ionic strengths were determined. 2. It was shown that ΔG of complexing can be considered the additive sum of the ΔG of a donor-acceptor π interaction which is constant in the dye-viologens series and the ΔG of the electrostatic interaction which changes as a function of the charges of the reactants.
Databáze: OpenAIRE