Stability of trivalent vanadium alkyl and hydride supported by a chelating phosphinimido ligand

被引：50

作者：

Aharonian, G ^{[1
]}

Feghali, K ^{[1
]}

Gambarotta, S ^{[1
]}

Yap, GPA ^{[1
]}

机构：

[1] Univ Ottawa, Dept Chem, Ottawa, ON, Canada

来源：

ORGANOMETALLICS | 2001年 / 20卷 / 12期

关键词：

D O I：

10.1021/om0101588

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Reaction of [(Me3Si)N=P(Ph)(2)C(H)P(Ph)(2)=N(SiMe3)]VCl2 (1) with 2 equiv of MeLi yielded the corresponding trivalent vanadium derivative [(Me3Si)N=P(Ph)(2)C(H)P(Ph)(2)=N(SiMe3)]-VMe2 (3). Subsequent hydrogenolysis afforded the dinuclear hydride complex ([(Me3Si)N= P(Ph)(2)C(H)P(Ph)(2)=N(SiMe3)]V)(2)(mu -H)(2) (4), where reduction of the metal center to the divalent state had occurred. Hydrogenolysis of solutions of 1 previously treated with lower than stoichiometric amounts of MeLi afforded the two mixed-valent V(II)/V(III) hydrides ([(Me-3-Si)N=P(Ph)(2)C(H)P(Ph)(2)=N(SiMe3)]V)(2)(mu -Cl)(2)(mu -H) (6) and([(Me3Si)N=P(Ph)(2)C(H)P(Ph)(2)= N(SiMe3)]V)(2)(mu -Cl)(mu -H)(2) (7) Hydrolysis of the divalent 4 afforded the trivalent and dinuclear ([(Me3Si)N=P(Ph)(2)C(H)P(Ph)(2)=(mu -N)]V(OSiMe3)}(2) (5), featuring migration of the Me3Si group from the N to the O atom of one incoming molecule of water.

引用

页码：2616 / 2622

页数：7

共 47 条

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