Issue 14, 2009

Complexes of four-membered group 13 metal(I) N-heterocyclic carbene analogues with platinum(II) fragments

Abstract

A series of fluorinated bis(aryl)platinum(II) complexes, cis-[Pt(Arf)2(1,5-C6H10)] (Arf = p-C6HF4, p-C6(OMe)F4 or C6H2F3−2,4,6) were reacted with the four-membered gallium(I) or indium(I) heterocycles, [:E{[N(Ar)]2CN(C6H11)2}] (E = Ga or In, Ar = C6H3Pri2−2,6) under various stoichiometries. These yielded either the 2:1 complexes, cis-[Pt(Arf)2{Ga{[N(Ar)]2CN(C6H11)2}}2], trans-[Pt(C6H2F3-2,4,6)2{Ga{[N(Ar)]2CN(C6H11)2}}2] and trans-[Pt(Arf)2{In{[N(Ar)]2CN(C6H11)2}}2], or the 3:1 complexes, trans-[Pt(Arf)2{In{[N(Ar)]2CN(C6H11)2}}3] (Arf = p-C6HF4 or p-C6(OMe)F4), all of which were crystallographically characterised. The differing outcomes of these reactions are explained in terms of the lesser nucleophilicity and greater electrophilicity of the indium heterocycle relative to its gallium counterpart. In the solid state, and in solution, the 3:1 indium complexes exhibit strong intramolecular In⋯F interactions which are indicative of their heterocyclic ligands displaying rare examples of “Lewis amphoteric” behaviour. An unusual platinum(0) complex in which the indium(I) heterocycle acts as a μ3-bridging ligand, [{Pt(norbornene)}33-In{[N(Ar)]2CN(C6H11)2}}2], was also prepared and structurally authenticated.

Graphical abstract: Complexes of four-membered group 13 metal(I) N-heterocyclic carbene analogues with platinum(II) fragments

Supplementary files

Article information

Article type
Paper
Submitted
08 Dec 2008
Accepted
28 Jan 2009
First published
20 Feb 2009

Dalton Trans., 2009, 2630-2636

Complexes of four-membered group 13 metal(I) N-heterocyclic carbene analogues with platinum(II) fragments

G. J. Moxey, C. Jones, A. Stasch, P. C. Junk, G. B. Deacon, W. D. Woodul and P. R. Drago, Dalton Trans., 2009, 2630 DOI: 10.1039/B821984B

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements