Reaction of the heterometallic cluster Os3Ru(μ-H) 2(CO)13 with diphenylphosphine: Phosphido-bridged tetrahedral and butterfly clusters

Abstract

TMNO-activated reaction of the heteronuclear cluster Os3Ru(μ- H)2(CO)13 (1) with diphenylphosphine afforded the novel phosphido-bridged clusters Os3Ru(μ-PPh2)(μ-H) 3(CO)11 (2), Os3Ru(μ-PPh2) 2(μ-H)2(CO)10 (3), Os3Ru(μ- PPh2)2(μ-H)4(CO)9 (4), and Os3Ru(μ-PPh2)(μ-H)3(CO) 11(PPh2H) (5). The formation of 2-5 proceeded via P-H bond cleavage in the adduct Os3Ru(μ-H)2(CO) 12(PPh2H) (6). Reaction of 2 with PPh3 afforded the adduct Os3Ru(μ-PPh2)(μ-H)3(CO) 11(PPh3) (7) and the substituted derivative Os 3Ru(μ-PPh2)(μ-H)3(CO) 10(PPh3) (8). © 2004 Elsevier B.V. All rights reserved.