Nucleophilicity of N-propargylanilines in the coordination to zinc tetraphenylporphyrin in chloroform

Владимир Петрович Андреев, Павел Сергеевич Соболев, D. O. Zaitsev, Визер Светлана Ахметшакуровна, K. B. Erzhanov, В. А. Тафеенко

2014

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DOI 10.1134/s1070363214080271
Data confidence 70 medium
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Abstract

Thermodynamic parameters (ΔG 0 and ΔS 0) of the isoenthalpic (except for 4-halo derivatives) coordination of (tetraphenylporphyrinato)zinc(II) with anilines in chloroform at 273–313 K linearly correlate with the shift of their electronic absorption maxima in the reaction with anilines, as well as with the logarithms of the stability constants of the complexes, pK a values of the ligands in water, and substituent constants σ+. The 2: 1 complex of (tetraphenylporphyrinato)zinc(II) with p-phenylenediamine was characterized by the X-ray diffraction data