Issue 46, 2007

Preparation of stannyl complexes of ruthenium and osmium stabilised by polypyridine and phosphite ligands

Abstract

Trichlorostannyl complexes [M(SnCl3)(bpy)2P]BPh4 [M = Ru, P = P(OEt)31a, PPh(OEt)21b; M = Os, P = P(OEt)32; bpy = 2,2′-bipyridine] were prepared by allowing chloro complexes [MCl(bpy)2P]BPh4 to react with SnCl2 in 1,2-dichloroethane. Bis(trichlorostannyl) compounds Ru(SnCl3)2(N–N)P2 [N–N = bpy, P = P(OEt)33a, PPh(OEt)23b; N–N = 1,10-phenanthroline (phen), P = P(OEt)34] were also prepared by reacting [RuCl(N–N)P3]BPh4 precursors with SnCl2·2H2O in ethanol. Treatment of both mono- 1a, 2 and bis 3a trichlorostannyl complexes with NaBH4 afforded mono- and bis(trihydridestannyl) derivatives [M(SnH3)(bpy)2P]BPh45, 6 and Ru(SnH3)2(bpy)P27 [P = P(OEt)3], respectively. Treatment of 1a, 2 with MgBrMe gave the trimethylstannyl complexes [M(SnMe3)(bpy)2P]BPh48, 9, and treatment of 3a afforded the bis(stannyl) Ru(SnClMe2)2(bpy)P210 derivative. Alkynylstannyl complexes [M{Sn(C[triple bond, length as m-dash]CR)3}(bpy)2P]BPh411–13 and Ru[Sn(C[triple bond, length as m-dash]CR)3]2(N–N)P214–17 (R = p-tolyl, But; N–N = bpy, phen) were also prepared by allowing trichlorostannyl compounds 1–4 to react with Li+[RC[triple bond, length as m-dash]C] in thf. The complexes were characterised spectroscopically and by the X-ray crystal structure determination of [Ru(SnMe3)(bpy)2{P(OEt)3}]BPh48 derivative.

Graphical abstract: Preparation of stannyl complexes of ruthenium and osmium stabilised by polypyridine and phosphite ligands

Supplementary files

Article information

Article type
Paper
Submitted
23 May 2007
Accepted
17 Sep 2007
First published
04 Oct 2007

Dalton Trans., 2007, 5441-5452

Preparation of stannyl complexes of ruthenium and osmium stabilised by polypyridine and phosphite ligands

G. Albertin, S. Antoniutti, J. Castro, S. García-Fontán and M. Noé, Dalton Trans., 2007, 5441 DOI: 10.1039/B707736J

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