Structural and physical characterization of (nitrato)iron(III) porphyrinates [Fe(por)(NO3)] -: Variable coordination of nitrate

被引：30

作者：

Wyllie, Graeme R. A.

Munro, Orde Q.

Schulz, Charles E.

Scheidt, W. Robert ^{[1
]}

机构：

[1] Univ Notre Dame, Dept Chem & Biochem, Notre Dame, IN 46556 USA

[2] Knox Coll, Dept Phys, Galesburg, IL 61401 USA

来源：

POLYHEDRON | 2007年 / 26卷 / 16期

关键词：

Iron(III) porphyrinates; nitrate binding mode; EPR spectroscopy; Mossbauer spectroscopy; crystal structure; electronic structure;

D O I：

10.1016/j.poly.2007.03.048

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

We report the X-ray crystal structures of two different iron(III) porphyrinates: [Fe(OEP)(NO3)] and [Fe(TPP)(NO3)]. The first complex has the nitrate ion coordinated by a single oxygen atom while the second derivative has the nitrate coordinated in a symmetric bidentate fashion. This latter structure is a redetermination that shows some differences from an earlier structure; the difference appears to be the result of an unrecognized nitrate ion disorder in the earlier structure determination. Changes in physical properties of three species [Fe(TPivP)(NO3)], [Fe(OEP)(NO3)] and [Fe-(TPP)-(NO3)] as a function of coordination mode were examined by Mossbauer and EPR spectroscopies; EPR spectra appear to be most sensitive to the change in coordination mode. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：4664 / 4672

页数：9

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