DIMERIC NATURE OF HEMIN HYDROXIDES

被引：156
作者：
COHEN, IA
机构：
[1] Department of Chemistry, Polytechnic Institute of Brooklyn, Brooklyn
来源：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1969年 / 91卷 / 08期
关键词：
D O I：
10.1021/ja01036a020
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The hematins derived from tetraphenylporphine and deuteroporphyrin IX dimethyl ester have been found to be dimeric in methylene chloride by molecular weight measurements. Infrared studies indicate the presence of iron-oxo-iron bridges in both systems. The room-temperature magnetic moment of one, the µ-oxo-bis(tetraphenylporphineaquoiron(III)), was found to be 1.74 BM per iron. The results of previous magnetic studies for hematins are interpreted as due to mixtures of high-spin hydroxo monomers and low-spin oxo dimers. The difference between the Mössbauer spectra of hemins and hematins is discussed. © 1969, American Chemical Society. All rights reserved.
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页码：1980 / &
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