MOSSBAUER-SPECTROSCOPY STUDY OF NEW EXAMPLES OF HIGHLY DELOCALIZED, FULLY AVERAGED MIXED-VALENCE DIIRON AND IRON-RUTHENIUM COMPOUNDS, [TRANS-MU-(PENTALENYL)BIS(PENTAMETHYLCYCLOPENTADIENYL IRON] +BF4- AND THE RELATED MU-SYMMETRICAL-INDACENE SYSTEM

被引：16

作者：

REIFF, WM

MANRIQUEZ, JM

MILLER, JS

机构：

[1] UNIV TECN FEDERICO SANTA MARIA, DEPT CHEM, VALPARAISO, CHILE

[2] DUPONT CO, WILMINGTON, DE 19898 USA

来源：

HYPERFINE INTERACTIONS | 1990年 / 53卷 / 1-4期

关键词：

D O I：

10.1007/BF02101073

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

We report that the (FeII, FeIII) versions of the title compounds as well as what is formally [Cp*FeII μ-pentalenyl RuIII Cp*]+BF4- (Cp* = η5-C5Me5) appear to be fully averaged mixed valence binuclear species on a Mössbauer spectroscopy time scale (∼100 ns) to as low as 1.5 K. This indicates essentially zero energy barrier to intramolecular electron transfer. At the other extreme, [Cp*FII μ-asymmetric-indacene FeIII Cp*]+BF4- exhibits trapped (discrete) FeII and FeIII valence states at ambient temperature. © 1990 J.C. Baltzer AG, Scientific Publishing Company.

引用

页码：397 / 402

页数：6

共 10 条

[1] PENTAMETHYLCYCLOPENTADIENYL ACETYLACETONATE COMPLEXES OF IRON(II), COBALT(II), AND NICKEL(II) - CONVENIENT SYNTHETIC ENTRIES TO MONO-ETA-5-C5ME5 DERIVATIVES [J].