Cluster chemistry. LXVII. Reactions of some FeIr clusters. Crystal structures of Fe2Ir(μ-H)(μ3-CCHPh)(CO)8(PPh3) and Au2Fe2Ir(μ4-C2Ph)(CO)7(PPh3)3

Michael I. Bruce, George A. Koutsantonis, Edwart R.T. Tiekink

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Isomeric hydrido-vinylidene and -alkyne complexes Fe2Ir(μ-H)(μ3-X)(CO)8(PPh3) (X CCHPh, HC2Ph) were obtained from Fe2Ir(μ3-C2Ph)(CO)8(PPh3) and H2 or H-/H+. The X-ray structure of the vinyldene complex is reported. Cluster complexes containing gold, iron and iridium were obtained from AuCl(PPh3) or [O{Au(PPh3)}3]+ and anionic species prepared from Fe2Ir(μ3-C2Ph)(CO)8(PPh3). The mono-gold specids AuFe2Ir(μ3-HC2Ph)(CO)8(PPh3)2 and the tri-gold cluster Au3Fe2Ir(C2HPh)-(CO)7 (PPh3)4 were identified spectroscopically, whereas the digold complex Au2Fe2Ir(μ4-C2Ph)-(CO)7(PPh3)3 was shown crystallographically to have an unusual structure in which one of the gold atoms bridges the acetylide Cα and the Ir atom. The rhodium analogue was also obtained.

Original languageEnglish
Pages (from-to)77-94
Number of pages18
JournalJournal of Organometallic Chemistry
Issue number1
Publication statusPublished - 1 Jan 1991
Externally publishedYes


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