BIS(ALLYL) RUTHENIUM(IV) COMPLEXES .1. SYNTHESIS OF COMPLEXES CONTAINING 4-MEMBERED RUTHENIUM HETEROCYCLES - CRYSTAL-STRUCTURE OF [RU(ETA-3-ETA-3-C-10 H-16)-(SNC7H4S-2)CL]

The dimer [{Ru(eta-3:eta-3-C10H16)(mu-Cl)Cl}2] 1 (C10H16 = 2,7-dimethyloctadienedily) reacts with benzothiazole-2-thiol and pyridine-2-thiol to give, as initial products, [Ru(eta-3:eta-3-C10H16)(SNC7H4SH-2)Cl2] 2 and [Ru(eta-3:eta-3-C10H16)(NC5H4SH-2)Cl2] 4 respectively. Intramolecular loss of HCl from complexes 2 and 4 leads to the formation of [Ru(eta-3:eta-3-C10H16)(SNC7H4S-2)Cl] 3 and [Ru(eta-3:eta-3-C10H16)(NC5H4S-2)Cl] 5 respectively. Complex 1 reacts with sodium dithiocarbamate to form [Ru(eta-3:eta-3-C10H16)(S2CNEt2)Cl] 6 directly. Complexes 3 and 5 react with MeCN in the presence of silver salts to form [Ru(eta-3:eta-3-C10H16)-(SNC7H4S-2)(NCMe)][BF4] 7 and [Ru(eta-3:eta-3-C10H16)(NC5H4S-2)(NCMe)][PF6] 8 respectively. the X-ray structure of 3 [space group P2(1) (no. 4), a = 11.627(3), b = 17.961(4), c = 8.206(3) angstrom, beta = 90.21(2)-degrees, Z = 4] is reported.