STABILITY CONSTANTS AND PROTON MAGNETIC RESONANCE STUDIES OF ZINC ALPHA,BETA,GAMMA,DELTA-TETRAPHENYLPORPHIN AND SUBSTITUTED PYRIDINES

被引：170

作者：

KIRKSEY, CH

HAMBRIGH.P

STORM, CB

机构：

[1] Department of Chemistry, Howard University, Washington

来源：

INORGANIC CHEMISTRY | 1969年 / 8卷 / 10期

关键词：

D O I：

10.1021/ic50080a022

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The equilibrium constants of ten substituted pyridine derivatives with zinc α,β,γ,δ-tetraphenylporphin have been measured in benzene at 25°. Only 1:1 complexes are observed. In contrast to iron(II) and magnesium(II) porphyrins, the stability constants parallel the ligand basicity. A linear log K-pK correlation and a Hammett plot with p = +1.50 was obtained. Proton magnetic resonance studies indicated that the exchange between the coordinated and uncoordinated pyridine was rapid at -60° and that the structures of the zinc(II) and magnesium(II) monopyridinates are similar. © 1969, American Chemical Society. All rights reserved.

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页码：2141 / &

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