The Synthesis of Thionitrosodimethylamine (Me2NN=S) Complexes of Ruthenium, Osmium, and Iridium

Article abstract of DOI:10.1016/0022-328X(86)80415-6

Neutral hydrido complexes ClH(PPh3)3 (= Ru(CO), Os(CO) and Ir(Cl) react with thionitrosodimethylamine, Me2NN=S, to give, ClH(SNNMe2)(PPh3)2 with H trans to Me2NN=S, while the hydrido cations cis,trans-<H(SNNMe2)2(PPh3)2>⁺ are obtained from Me2NN=S and ⁺, ⁺ and ⁺, respectively.The coordinatively unsaturated aryl complexes Cl(p-tolyl)(PPh3)2 (= Ru(CO), Os(CO) and Os(CS) coordinate one molecule of Me2NN=S to give Cl(p-tolyl)(SNNMe2)(PPh3)2, the chloride ligands of which are labile.Spectroscopic data suggest that in all these complexes the Me2NN=S ligand adopts a η¹(S) coordination mode.