Cluster Chemistry

C.J. Adams, M.I. Bruce, P.A. Duckworth, P.A. Humphrey, O. Kuhl, E.R.T. Tiekink, W.R. Cullen, P. Braunstein, S.C. Cea, Brian Skelton, Allan White

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Reaction of Ru-3(mu-dppm)(CO)(10) [dppm=bis(diphenylphosphino)methane] with one equivalent of dppa [dppa=bis(diphenylphosphino)acetylene] afforded Ru-3(mu-dppm)(CO)(9)(eta(1)-dppa) which possesses a monodentate dppa ligand, an X-ray structural study revealing that all phosphorus donor atoms are arranged in equatorial coordination sites with respect to the triruthenium cluster plane. Reaction of Ru-3(CO)(9)(NCMe)(3) with excess dppa afforded fair yields of Ru-3(CO)(9)(eta(1)-dppa)(3),which possesses three monodentate dppa ligands. Reaction of three equivalents of Ru-3(mu-dppm)(CO)(9)(eta(1)-dppa) with Ru-3(CO)(9)(NCMe)(3) or reaction of Ru-3(CO)(9)(eta(1)-dppa)(3) with excess Ru-3(mu-dppm)(CO)(10) afforded low yields of the dodecanuclear first-generation dendrimer Ru-3(CO)(9)(PPh2C2PPh2Ru3(mu-dppm)(CO)(9)}(3). Reaction of WIr3(mu-CO)(3)(CO)(8)(eta-C5Me5) with excess Ru-3(mu-dppm)(CO)(9)(eta(1)-dppa) afforded fair yields of the decanuclear dppa-bridged tri-cluster WIr3(CO)(9){PPh2C2PPh2Ru3(mu-dppm)(CO)(9)}(2)(eta-C5Me5). (c) 2007 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)251-281
JournalJournal of Organometallic Chemistry
Volume467
DOIs
Publication statusPublished - 1994

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