Reactions of iridium and ruthenium arenethiolato complexes with propylene sulfide. X-ray structures of 1-arylthio-2-propanethiolato-S,S ' iridium andruthenium complexes

The square-planar iridium(I) thiolato complex [Ir(NO) (SMes)(2)(PPh3)] (1; Mes = Cd6H2Me3-2,4,6), which has been prepared by the reaction of [Ir(NO)Cl -2(PPh3)(2)] with NaSMes, reacted propylene with sulfide to afford the squa re-pyramidal 1-arylthio-2-propanethiolato iridium(III) complex [Ir(NO)(SMes )(SCHMeCH(2)SMes) (PPh3)] (2). Similar treatment of the ruthenium(IV) [Ru(N CMe)(SDur)(4)] (3; Dur=C6HMe4-2,3,5,6) resulted in the formation of the 1-a ryltbio-3-propanethiolato complex [Ru(SDur)(3)(SCHMeCH(2)SDur)] ( 4) contai ning a trigonal-bipyramidal ruthenium(IV) center. The detailed structures o f 2 and 4 have been determined by X-ray crystallography. (C) 1998 Elsevier Science S.A. All rights reserved.