Diazald: An entry to diruthenium complexes containing bridging nitrosyl ligands

作者：Mayer Tobias; Mayer Peter; Boettcher Hans Christian

来源：Journal of Organometallic Chemistry, 2014, 751: 368-373.

DOI：10.1016/j.jorganchem.2013.08.017

• Ruthenium
• Coordinative unsaturation
• Nitrosyl ligands
• Phosphanido-bridged
• Crystal structure

Reactions of coordinatively unsaturated complexes [Ru-2(mu-(PBu2)-Bu-t)(mu-H)(mu-PP)(CO)(4)] (PP = 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 [Ru-2(mu-(PBu2)-Bu-t)(mu-NO)(mu-PP)(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 [Fe-2(mu-(PBu2)-Bu-t)(mu-H)(mu-dppm)(CO)(4)] (dppm = Ph2PCH2PPh2). In this case carbon monoxide was produced in side reactions and the known compound [Fe-2(mu-(PBu2)-Bu-t)(mu-H)(mu-dppm)(mu-CO)(CO)(4)] was obtained as the main product. The molecular structure of the latter complex was also determined by X-ray diffraction.

• 出版日期2014-2-1