Concerning the reaction of the betain-like compound O2CC(PPh3)2 with tungsten-carbonyl derivatives;: Preparation and crystal structures of [(CO)5W {η1-O2C2(PPh3)2}] and [(CO)4W{η2O2C2(PPh3)2}]

被引：8

作者：

Petz, W ^{[1
]}

Öxler, F ^{[1
]}

Brand, A ^{[1
]}

Neumüller, B ^{[1
]}

机构：

[1] Univ Marburg, Fachbereich Chem, D-35032 Marburg, Germany

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2006年 / 632卷 / 04期

关键词：

betain-like compounds; carbodiphosphorane adducts; chelating ligand; crystal structures; tungsten carbonyl compounds;

D O I：

10.1002/zaac.200500461

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The carbodiphosphorane CO2 adduct O2CC(PPh3)(2) (1a) reacts with [(CO)(5)W(THF)] and [(CO)(3)W(NCEt)(3)] to produce the complexes [(CO)(5)W{eta(1)-O2CC(PPh3)(2)}] (2) and [(CO)(4)W{eta(2)-O2CC(PPh3)(2)}] (3), respectively. Whereas in 2 the betain-like ligand is coordinated at the tungsten atom in a monodentate manner, in 3 it acts as a chelating ligand with formation of a WO2C four-membered ring. As a by-product during the reaction with the acetonitrile adduct also some crystals of the hydrolysis product [HC(PPh3)(2)](2)[W6O19].3C(2)H(4)Cl(2) (4.3C(2)H(4)Cl(2)) were isolated. All compounds could be characterized by X-ray analyses and the usual spectroscopic methods.

引用

页码：588 / 592

页数：5

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