METAL-COMPLEXES OF FUNCTIONALIZED SULFUR-CONTAINING LIGANDS .5. RUTHENIUM(II)-ALKYLTHIOSULFINATO AND RUTHENIUM(II)-ARYLTHIOSULFINATO COMPLEXES - X-RAY STRUCTURE DETERMINATION OF CPRU(PPH3)(CO)[S-S(O)-CH2-C6H5]

Compounds of the type CpRu(PPh3)(L)(SH) [L - PPh, (2), CO (4)] react w ith N-alkyl and -arylsuffinyl phthalimides 3a-f to give the chiral com plexes CpRu(PPh3)(L)[S-S(O)-R] (L = PPh3, 5a: R = C4H9, 5b: R = C12H25 , 5d: R = C18H37, 5e: R = Tol; L = CO, 6a: R = C4H9, 6b: R = C12H25, 6 c: R = C16H33, 6d: R = C18H37, 6f. R = CH2Ph). With 6a-c diastereosele ctivities of 5: 2, with 6d 5: 1, and with 6f 10: 3, respectively, are observed. The compounds 5, 6 are characterized by their spectroscopic data; the X-ray structural determination of u-6f shows a sulfur-sulfur bond length of 208,6 (3) pm, the dihedral angle Ru - S(1) - S(2) - C( 25) is 170,8-degrees. Extended Huckel calculations give information ab out the rotational barrier around the S - S(O) axis.