SYNTHESIS AND CRYSTAL AND MOLECULAR-STRUCTURE OF [(N-C4H9)4N]2[MOO2(C5O5)2] - CONFIRMATION OF EXCLUSIVELY ETA-2-COORDINATION BY A CROCONATE LIGAND

被引：22

作者：

CHEN, Q ^{[1
]}

LIU, SC ^{[1
]}

ZUBIETA, J ^{[1
]}

机构：

[1] SUNY ALBANY,DEPT CHEM,ALBANY,NY 12222

来源：

INORGANICA CHIMICA ACTA | 1990年 / 175卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0020-1693(00)84832-X

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The reaction of [(nC4H9)4N]2[Mo2O7] with BaC5O5 in acetonitrile yields red crystals of [(n C4H9)4N]2[MoO2(C5O5)2]. The compound crystallizes in the monoclinic space group C2/c with a=36.502(11), b=14.681(3), c=18.109(5) Å, β=93.84(1)°, V=9682.5(15) Å3, Dcalc=1.22 g cm-3 for Z=8. Structure solution and refinement based on 3593 reflections with Fo≥6σ(Fo) Mo Kα, λ= 0.71073 Å) converged at 0.0693. The structure of the anion consists of a mononuclear Mo(VI) center in ar distorted octahedral environment of the cis-oxo groups and the oxygen donors of two bidentate croconate ligands. The 1,2-chelating geometry of the croconate is unusual in that all previously structurally characterized examples of croconate coordination exhibit additional bonding to a second metal site via the oxygen donor in the 4 position. © 1990.

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页码：241 / 245

页数：5

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