Isolation and structural characterization of tetra-n-propyl zirconate in hydrocarbon solution and the solid state

被引：21

作者：

Day, VW ^{[1
]}

Klemperer, WG

Pafford, MM

机构：

[1] Univ Nebraska, Dept Chem, Lincoln, NE 68588 USA

[2] Univ Illinois, Dept Chem, Urbana, IL 61801 USA

来源：

INORGANIC CHEMISTRY | 2001年 / 40卷 / 23期

关键词：

D O I：

10.1021/ic010776g

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Tetra-n-propyl zirconate has been purified by vacuum distillation and isolated as an extremely moisture sensitive, crystalline solid. According to a single-crystal X-ray diffraction study, crystalline tetra-n-propyl zirconate is composed of tetrameric Zr-4(OPrn)(16) (1) molecules whose Zr4O16 metal-oxygen core structure has virtual C-2h symmetry, the same structure observed previously for n-alkyl orthotitanates. Carbon-13 NMR spectroscopic data indicate that this core structure is retained in hydrocarbon solution. Molecule 1 has the same M4O16 metal-oxygen core structure as [CH3C(CH2O)(3)](2)M-4(OPri)(10), M = Ti, where the metal centers have octahedral coordination geometry, but a metal-oxygen core structure different from that of the M = Zr case, where trigonal metaprismatic coordination geometry is observed.

引用

页码：5738 / 5746

页数：9

共 74 条

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