78205-91-1Relevant academic research and scientific papers
Carbonyl Complexes of Niobium and Tantalum and Evidence of a Niobium Dinitrogen Complex: the Structure of Carbonyldichlorocyclopentadienyl-bis(dimethylphenylphosphine)tantalum
Burt, Roger J.,Leigh, Jeffery G,Hughes, David L.
, p. 793 - 799 (1981)
The reactions of (M= Nb or Ta) with tertiary phosphines and other ligands and reduction of the products under carbon monoxide give carbonyls such as (PR3= tertiary phosphine), but no N2 analogues.The crystal and molecular structure of has been determined by the heavy-atom method, using Mo-Kα radiation and 1591 non-zero reflections.The space group is hexagonal P65, with a=13.661(2), c=26.420(11) Angstroem and Z=6.At convergence, R=0.0357 and R'=0.037 0.Other carbonyls, such as are easily obtainable by reduction under CO, and the preparation of an impure dinitrogen complex which yields some hydrazine with acid is also described.
