Nitrosyl ruthenium complexes with general formula [RuCl 3(NO)(PP)] (PP = {PPh 2(CH 2) nPPh 2}, n = 1–3 and {PPh 2-CHPPh 2}). X-ray structure of [RuCl 3(NO){PPh 2(CH 2) 3PPh 2}

Abstract

Ruthenium(II) complexes with general formula [RuCl 3(NO)(PP)] were obtained in the solid state, where PP = PPh 2(CH 2) n PPh 2 ( n = 1) and PPh 2-Ch = CH-PPh 2. The 31P NMR spectra of these compounds measured in CH 2Cl 2 showed only singlets, consistent with a fac configuration containing two equivalent phosphorus atoms. However the X-ray diffraction data show that the [RuCl 3(NO){PPh 2(CH 2) 3PPh 2}] complex crystallizes in a mer configuration, where one of the phosphorus atoms is trans to the NO group, in a slightly distorted octahedral geometry.