EFFECT OF PRESSURE ON FE-C BOND IN SUBSTITUTED CYANIDES

被引：15

作者：

FUNG, SC

DRICKAME, HG

机构：

[1] Department of Chemistry and Chemical Engineering, Materials Research Laboratory, University of Illinois, Urbana

来源：

JOURNAL OF CHEMICAL PHYSICS | 1969年 / 51卷 / 10期

关键词：

D O I：

10.1063/1.1671802

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effect of pressure has been studied on the bonding in four nitroprussides and in Na3 (CN)5NH3, using Mössbauer resonance. At atmospheric pressure, the spectrum consists of low-spin Fe(II) with a very high electron density at the iron nucleus and a large quadrupole splitting. At modest pressure and high temperature a single peak appears with approximately the isomer shift of the initial pair. This is attributed to a decrease in the asymmetry due to changes in the Fe-NO bond. At high pressures and high temperatures very large conversion to high-spin Fe(II) is observed. This is attributed to a large decrease in the back donation of Fe electrons to the ligands.

引用

页码：4360 / &