Issue 12, 2008
From the journal:

Dalton Transactions

An unusual trigonal D3assembly composed of molybdate anions and multiply bonded dimolybdenum units†‡

James P. Donahue*a  and  Carlos A. Murillob  

* Corresponding authors

a Department of Chemistry, Tulane University, 6400 Freret Street, New Orleans, LA, United States of America
E-mail: donahue@tulane.edu
Fax: +1 504 865 5596
Tel: +1 504 862 3562

b Department of Chemistry, Texas A&M University, PO Box 30012, College Station, TX, United States of America
E-mail: murillo@tamu.edu
Tel: +1 979 845 3646

Abstract

Oxidation of the molybdate-linked pair having two quadruply bonded Mo24+ units, [Mo2(DAniF)3]2(µ2-MoO4), (DAniF = N,N′-di-(p-anisyl)formamidinate) leads to the formation of a species consisting of three oxidized Mo25+ units connected by two µ3-MoO42− dianions, {[Mo2(DAniF)3]3(µ3-MoO4)2}2+. This cation displays overall D3 point group symmetry due to a slight twisting of the three Mo25+ units about the threefold symmetry axis. This distortion removes all mirror symmetry but preserves all C2 axes orthogonal to the unique C3 axis. Cyclic voltammetry of {[Mo2(DAniF)3]3(µ3-MoO4)2}2+ in CH2Cl2 reveals three reversible one-electron redox processes, corresponding to successive reduction of each of the three Mo25+ units, with ΔE1/2 separations of 0.36 V and 0.41 V.

Graphical abstract: An unusual trigonal D3assembly composed of molybdate anions and multiply bonded dimolybdenum units

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Article information

DOI
https://doi.org/10.1039/B714814C
Article type
Paper
Submitted
26 Sep 2007
Accepted
11 Dec 2007
First published
08 Jan 2008

Dalton Trans., 2008, 1547-1551

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An unusual trigonal D3assembly composed of molybdate anions and multiply bonded dimolybdenum units

J. P. Donahue and C. A. Murillo, Dalton Trans., 2008, 1547 DOI: 10.1039/B714814C

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