Transition metal complexes with sulphur ligands—XLI. Rhodium hydride complexes with coordination spheres dominated by sulphur: Synthesis and properties of complexes of the type [Rh(H)(PPh3)n(L)] (L = “buS4”2− = (tetra-t-butyl)-2,3,8,9-dibenzo-1,4,7,10-tetrathiadecanate (2−), “S4”2− = 2,3,8,9-dibenzo-1,4,7,10-tetrathiadecanate (2−), “MeS2”− = o-methyl-thiobenzenethiolate (1−); n = 1, 2); X-ray crystal structures of [Rh(H)(PPh3)(“MeS2”)2] and [RhCl(PPh3)(“MeS2”)]2