Ligand effects on the structures of Rh 6 (CO) 15 L clusters

The crystal and molecular structures of the hexarhodium carbonyl clusters Rh6(CO)15L (L = P(OPh)3, 1; P(4-XC6H4)3, (X = CF3, 2; Cl, 3; F, 4; OMe, 5); P(nBu)3, 6; Me2SO, 7; MeCN, 8; C8H14, 9) have been determined by single crystal X-ray crystallography. Redetermination of the structure of the parent Rh6(CO)16 cluster, 10, has also been performed and all the results are compared with those for the rather disparate group of monosubstituted …