Crystal and molecular structure of chloro-1,2-bis(diphenylphosphino)-ethanemonocarbonyl-π-cyclopentadienylmolybdenum(II)

Abstract

Chloro-1,2-bis(diphenylphosphino)ethanemonocarbonyl-π-cyclopentadienylmolybdenum(II), Mo(π-C₆H₅)(CO)-(Ph₂PCH₂)₂CI, crystallizes in the space group Pbca(D_2h ¹⁵, No. 61), Z= 8, with cell dimensions a= 1·7395 ± 0·0007, b= 2·3744 ± 0·0008, c= 1·3792 ± 0·0019 nm. Data were collected photographically, and 2544 observed reflections were used to solve the structure by the heavy atom method (R= 7·47%). The molecule is of the sandwich type, with the cyclopentadienyl ring on one side of the molybdenum atom and the other ligands on the other side, and the carbonyl ligand is cis to the chlorine atom. The phosphorus ligand is bonded to a single molybdenum atom, and is not a bridging ligand.