Crystal structure of dicarbonyl-η-cyclopentadienyl[(3-dimethylarsino)propyl]molybdenum

Abstract

The crystal structure of the title compound has been determined from X-ray diffractometer data by the heavy-atom method and refined by least squares to R 0.060 for 2 013 observed reflections. Crystals are orthorhombic, space group Pcab, a= 15.903(5), b= 13.297(2), c= 12.925(2)Å, Z= 8. Mo–As is 2.533(2), and the Mo–C(alkyl) 2.35(1)Å. The η⁵-cyclopentadienyl group occupies an apical position in the pseudo-square-pyramidal complex.