THE SYNTHESIS, CHARACTERIZATION AND X-RAY STRUCTURE OF ANTI-W2(GEPH3)2(NME2)4

被引：5

作者：

CHISHOLM, MH ^{[1
]}

PARKIN, IP ^{[1
]}

HUFFMAN, JC ^{[1
]}

机构：

[1] INDIANA UNIV,CTR MOLEC STRUCT,BLOOMINGTON,IN 47405

来源：

POLYHEDRON | 1991年 / 10卷 / 11期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0277-5387(00)86097-0

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The reaction between LiGePh3 and W2Cl2(NMe2)4 in toluene-THF produces W2(GePh3)2(NMe2)4 in high yield (69%). The product is air-stable, decomposes at 209-degrees-C and is soluble in aromatic hydrocarbon solvents. The H-1 NMR spectrum reveals only an anti-isomer with T(c) = 115-degrees-C, DELTA-G-dagger = 74 kJ mol-1 for amide rotation. The X-ray structure is consistent with the H-1 NMR spectrum and reveals a central anti-ethane-like W2N4Ge2 core with bond lengths and angles: W = W = 2.2970(9) angstrom, W-Ge = 2.625(1) angstrom, W-N = 1.95(av) angstrom, W-W-Ge = 95.89(3)-degrees. The compound crystallized in the P2(1)/n space group with the cell parameters a = 19.770(6), b = 11.685(2), c = 9.326(2) angstrom, beta = 99.74(1)-degrees, Z = 2, V = 2123.3 angstrom3, d(c) = 1.802 g cm-3 at -172-degrees-C.

引用

页码：1215 / 1219

页数：5

共 9 条

[1]

AKIYAMA M, 1983, INORG CHEM, V22, P38

[2] BINUCLEAR ORGANOMETALLIC COMPOUNDS .3. METAL-METAL BOND DISSOCIATION ENERGIES, RAMAN, AND INFRARED SPECTRA FOR SERIES (PI-C5H5)(CO)3M1M2ME3 - (M1=CR, MO, OR W M2=GE OR SN) [J].