DETECTION OF COVALENCY IN CYCLOPENTADIENYL COMPLEXES OF THE ALKALINE-EARTH AND F-ELEMENTS - STATISTICAL EVALUATION OF STRUCTURAL DATA

被引：39

作者：

SOCKWELL, SC ^{[1
]}

HANUSA, TP ^{[1
]}

机构：

[1] VANDERBILT UNIV,DEPT CHEM,NASHVILLE,TN 37235

来源：

INORGANIC CHEMISTRY | 1990年 / 29卷 / 01期

关键词：

D O I：

10.1021/ic00326a016

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Evidence for covalent bonding in cyclopentadienyl complexes of the alkaline-earth and f elements was sought by determining the strength of the linear relationship between metal radii and metal-Cp distances in over 200 structurally characterized compounds. Regression analysis indicates that the metal radius alone is a strong predictor of metal-Cp distances in divalent complexes but that the ligand environment around the metal markedly influences the “effective ionic radius” of the Cp ligand in trivalent and tetravalent compounds. Such steric effects need to be considered before inferences about the presence or absence of covalent bonding are drawn. Revised estimates for the Cp radius in several classes of cyclopentadienyl complexes are presented. © 1990, American Chemical Society. All rights reserved.

引用

页码：76 / 80

页数：5

共 37 条

[1] SYNTHESIS AND CRYSTALLOGRAPHIC CHARACTERIZATION OF A DIMERIC ALKYNIDE-BRIDGED ORGANOLANTHANIDE - [(C5H5)2ERC=CC(CH3)3]2 [J].