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• 作者：Md. Iqbal Hyder ; Shariff E. Kabir ; Md. Arzu Miah ; Tasneem A. Siddiquee and G.M. Golzar Hossain
• 关键词：Triruthenium clusters ; Phosphido ; Phosphinido ; Bond cleavage ; X-ray structures
• 刊名：Polyhedron
• 出版年：2005
• 期刊代码：87_02775387
• 类别：ch
• 出版时间：2005
• 卷：24
• 期：12
• 页码：1471-1477
• 文件大小：192 K

摘要

Treatment of [Ru₃(CO)₁₀(μ-dppm)] (1) with PPh₂H in refluxing heptane afforded four triruthenium compounds [Ru₃(CO)₆(μ-CO)(μ₃-CH₂PPh)(μ-PPh₂)₂] (3), [(μ-H)Ru₃(CO)₆(μ₃-η²-PPh₂CH₂PPh)(μ-PPh₂)₂] (4), [(μ-H)₂Ru₃(CO)₅(μ-dppm)(μ₃-PPh)(μ-PPh₂)₂] (5) and [(μ-H)₂Ru₃(CO)₆(μ-dppm)(μ-PPh₂)₂] (6). Compound 4 can also be prepared in relatively higher yield from the reaction of [Ru₃(CO)₉{μ₃-η³-PPhCH₂P(Ph)(C₆H₄)}] (7) with PPh₂H in refluxing THF. The new compounds were characterized by spectroscopic data along with single-crystal X-ray diffraction studies on 4 and 5. Compound 4 consists of a triangular cluster of ruthenium atoms containing one μ₃-η²-PPh₂CH₂PPh ligand and two μ-PPh₂ ligands whereas 5 is an open triangular cluster bearing one μ₃-PPh and two μ-PPh₂ ligands.