Metallkomplexe mit funktionalisierten Schwefelliganden, V Ruthenium(II)-Alkyl- und -Arylthiosulfinato-Komplexe. Kristallstrukturanalyse von CpRu(PPh3)(CO)[S-S(O)-CH2-C6H5] / Metal Complexes of Functionalized Sulfur Containing Ligands, V Ruthenium(II)-Alkyl-and -Arylthiosulfinato Complexes. X-Ray Structure Determination of CpRu(PPh3)(CO)[S-S(O)-CH2-C6H5]

Abstract

Compounds of the type CpRu(PPh3)(L)(SH) [L = PPh3 (2), CO (4)] react with N-alkyl and -arylsulfinyl phthalimides 3a-f to give the chiral complexes 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 = C12H25,6c: R = C16H33,6d: R = C18H37,6f: R = CH2Ph). With 6a-c diastereoselectivities 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°. Extended Hückel calculations give information about the rotational barrier around the S-S(O) axis.