Synthesis, crystal and molecular structure of acetonitrilecarbonyldichloro(cyclo-octa-1,5-diene)ruthenium(II)

Abstract

Reaction of [RuCl₂CO(C₈H₁₂)]₂ with acetonitrile gives [RuCl₂CO(MeCN)C₈H₁₂](Ia), shown by X-ray diffraction analysis to have octahedral stereochemistry with a trans-OC–Ru–MeCN arrangement. Crystals are monoclinic, space group P2₁/c, with a= 12.933(2), b= 7.641 (8), c= 13.435(3)Å, β= 104.36(2)° and contain one molecule per asymmetric unit. The structure was solved by use of 1 086 film data, and refined to R 0.09. The related complexes [RuCl₂CO(L)C₈H₁₂](L = acrylonitrile and cyclopropyl cyanide) have also been synthesised.