Solution nuclear magnetic resonance spectral characterization of iron(II) porphyrin complexes of weakly coordinating anions

被引:0
|
作者
Song, BH [1 ]
Park, B [1 ]
Han, CH [1 ]
机构
[1] Sun Moon Univ, Dept Chem, Asan 336708, Chungnam, South Korea
来源
关键词
anion binding; iron porphyrin;
D O I
暂无
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Weakly coordinating anions show little affinity for binding to unfunctionalized iron(II) porphyrins. The electron-deficient 5, 10, 15, 20-tetrakis(pentafluorophenyl)porphinatoiron(II) compound is utilized in this study to demonstrate solution coordination by chloride, bromide and acetate ions. The binding strength of anions to the iron(II) porphyrin is reflected by a systematic change in pyrrole proton chemical shift in H-1 NMR spectra; the pyrrole resonance moves downfield when the sigma-donor ability of anions is decreased.
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页码:119 / 122
页数:4
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