Die reaction von bis(trimethylsilyl)schwefeldiimid mit dodekacarbonyl-triruthenium, röntgenstrukturanalyse des produkts Ru 2(CO) 4[μ-Me 3Si-NSN-COSiMe 3] 2

Abstract

An unusual binuclear complex, Ru 2(CO) 4[μ-Me 3Si-NSN-COSiMe 3] 2, is formed when bis(trimethylsilyl) sulfur diimide, S(NSiMe 3) 2, reacts with Ru 3(CO) 12 in boiling hexane. The X-ray structure analysis reveals a centrosymmetric molecule containing two [Ru(CO) 2] units which are incorporated into a pentacyclic system with a ten-membered ring as largest perimeter. This ring possesses a chair conformation, it contains two transannular Ru-N bonds and, on the perimeter, two RuNS triangles. Apparently a ruthenium-coordinated CO ligand is inserted into a N-SiMe 3 bond of S(NSiMe 3) 2; a carbene-type ligand is thus formed, which is both a chelating and a bridging ligand. The coordinated SN bond of the original sulfur diimide is lenghtened to 1.721(3) Å.