Crystal structure of dicarbonyl(π-cyclopentadienyl)[di-(t-butyl)methyleneamino]molybdenum(<scp>II</scp>)

Abstract

Crystals of the title compound are monoclinic, space group P21/n, with a= 12·674(1), b= 8·279(1), c= 16·543(2)Å, β= 100·82(3)°, Z= 4. The structure was solved from diffractometer data by the heavy-atom method and refined by least squares to R 0·033 for 1543 observed reflections. The But2C:N group is attached to Mo by a short bond of length 1·892 Å, the Mo–N–C angle being 171·8°. Both these values are consistent with the existence of substantial Mo–N multiple bonding.