PARAMAGNETIC ORGANOMETALLIC MOLECULES .6. LINE WIDTHS AND LINE-SHAPES IN ESR-SPECTRA OF ORGANOMETALLIC RADICALS

被引：33

作者：

PEAKE, BM

RIEGER, PH

ROBINSON, BH

SIMPSON, J

机构：

[1] Chemistry Department, University of Otago, Dunedin, New Zealand

来源：

INORGANIC CHEMISTRY | 1979年 / 18卷 / 04期

关键词：

D O I：

10.1021/ic50194a025

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The sources of line broadening and line-shape distortion in isotropic ESR spectra of organometallic radicals containing two or more equivalent nuclei have been examined in some detail. Second-order hyperfine splittings are shown to lead to asymmetric line shapes in both isotropic and frozen-solution spectra. The X-band and Q-band ESR spectra of the C6H5CCo3(CO)9 radical anion have been analyzed as a test of the theory. Computer simulations of the experimental isotropic spectra show that the principal line-width contribution results from incomplete averaging of anisotropies in the g and hyperfine tensors. © 1979, American Chemical Society. All rights reserved.

引用

页码：1000 / 1005

页数：6

共 13 条

[1]

ATHERTON NM, 1973, ELECTRON SPIN RESONA, P222

[2] ESR LINEWIDTHS IN SOLUTION .2. ANALYSIS OF SPIN-ROTATIONAL RELAXATION DATA [J].