Novel heterotetranuclear V2Mo2 or V2W2 complexes with 4,4'-di-tert-butyl-2,2'-bipyridine: syntheses, crystal structures, and catalytic activities

Shintaro Kodama; Akihiro Nomoto; Shigenobu Yano; Michio Ueshima; Akiya Ogawa

doi:10.1021/ic2009094

Novel heterotetranuclear V2Mo2 or V2W2 complexes with 4,4'-di-tert-butyl-2,2'-bipyridine: syntheses, crystal structures, and catalytic activities

Inorg Chem. 2011 Oct 17;50(20):9942-7. doi: 10.1021/ic2009094. Epub 2011 Sep 9.

Authors

Shintaro Kodama¹, Akihiro Nomoto, Shigenobu Yano, Michio Ueshima, Akiya Ogawa

Affiliation

¹ Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan.

PMID: 21905659
DOI: 10.1021/ic2009094

Abstract

Two novel heterotetranuclear complexes [V(2)O(2)(μ-MeO)(2)(μ-WO(4))(2)(4,4'-(t)Bubpy)(2)] (1) and [V(2)O(2)(μ-MeO)(2)(μ-MoO(4))(2)(4,4'-(t)Bubpy)(2)] (2) were synthesized, and the solid state structures of these complexes were revealed by single crystal X-ray crystallography. The heterotetranuclear complexes 1 and 2 are centrosymmetric building blocks, considered as consisting of two [VO(4,4'-(t)Bubpy)](3+) units bridged by μ-MO(4)(2-) (M = W or Mo) anions connected with methoxy groups. Furthermore, catalytic activities of 1 and 2 in the alcohol oxidation with hydrogen peroxide as terminal oxidants in water as solvent were investigated.