Metal-stabilised diynyl radicals: structure and reactivity of [Mo(C[triple bond]C-C[triple bond]CSiMe3)L2(eta-C7H7)]*+ (L2 = 2,2'-bipyridine or dppe)

Neil J Brown; David Collison; Ruth Edge; Emma C Fitzgerald; Paul J Low; Madeleine Helliwell; Yien T Ta; Mark W Whiteley

doi:10.1039/b924759a

Metal-stabilised diynyl radicals: structure and reactivity of [Mo(C[triple bond]C-C[triple bond]CSiMe3)L2(eta-C7H7)]*+ (L2 = 2,2'-bipyridine or dppe)

Chem Commun (Camb). 2010 Apr 7;46(13):2253-5. doi: 10.1039/b924759a. Epub 2010 Jan 19.

Authors

Neil J Brown¹, David Collison, Ruth Edge, Emma C Fitzgerald, Paul J Low, Madeleine Helliwell, Yien T Ta, Mark W Whiteley

Affiliation

¹ Department of Chemistry, University of Durham, South Road, Durham, UK DH1 3LE.

PMID: 20234923
DOI: 10.1039/b924759a

Abstract

The unprecedented spectroscopic and structural characterisation of a series of 17-electron, monometallic diynyl radicals, [Mo(C[triple bond]C-C[triple bond]CR)L(2)(eta-C(7)H(7))]*(+) (L(2) = bipy, R = SiMe(3); L(2) = dppe, R = SiMe(3) or H), are reported; the (L(2) = dppe, R = SiMe(3)) derivative is reactive to chain-centred C(beta)-C(beta') dimerisation.