Diazald: An entry to diruthenium complexes containing bridging nitrosyl ligands

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• 作者：Tobias Mayer ; Peter Mayer ; Hans-Christian B枚ttcher
• 关键词：Ruthenium ; Coordinative unsaturation ; Nitrosyl ligands ; Phosphanido-bridged ; Crystal structure
• 刊名：Journal of Organometallic Chemistry
• 出版年：1 February, 2014
• 年：2014
• 卷：751
• 期：Complete
• 页码：368-373
• 全文大小：906 K

文摘

Reactions of coordinatively unsaturated complexes [Ru₂(渭-P^tBu₂)(渭-H)(渭-P藛P)(CO)₄] (P藛P聽=聽bisphosphanes, N,N-substituted bis(diphenylphosphanyl)amines) with the nitrosylating reagent diazald (N-methyl-N-nitroso-p-toluenesulfonamide) were investigated. Thus a convenient synthesis affording a series of new diruthenium complexes containing bridging nitrosyl ligands of the general type [Ru₂(渭-P^tBu₂)(渭-NO)(渭-P藛P)(CO)₄] was developed and the crystal and molecular structures of five new compounds were determined. Contrary, this reaction principle does not work for the closely related complex [Fe₂(渭-P^tBu₂)(渭-H)(渭-dppm)(CO)₄] (dppm聽=聽Ph₂PCH₂PPh₂). In this case carbon monoxide was produced in side reactions and the known compound [Fe₂(渭-P^tBu₂)(渭-H)(渭-dppm)(渭-CO)(CO)₄] was obtained as the main product. The molecular structure of the latter complex was also determined by X-ray diffraction.