220761-86-4Relevant academic research and scientific papers
Formation of 1,2-bis (diphenylphosphino)ethane, dppe, from two coordinated diphenylvinylphosphine (DPVP) ligands; Crystal structures of cis- and trans- (DPVP)2 Mo (CO)4 and (dppe)M(CO)4 (M=Cr, Mo)
Maitra, Kalyani,Nelson, John H.
, p. 203 - 210 (1998)
Photolysis of a 1:2 mixture of M(CO)6 (M=Cr, Mo) and diphenylvinylphosphine (DPVP) in tetrahydrofuran produces (DPVP)M(CO)5, cis- and trans- (DPVP)2M(CO)4, (dppe)M(CO)4 (dppe=1,2-bis (diphenylphosphino)ethane, and fac- (dppe) (DPVP)Mo (CO)3. The complexes have been characterized by elemental analysis, infrared and 1H, 13C{ 1H} and 31P{ 1H} NMR spectroscopy and in four cases by X-ray crystallography. The Mo-P bond lengths for cis- (DPVP)2Mo (CO)4 (2.5509 (10) A, ave.) are longer than those for the trans-isomer (2.4713 (7) A) due to the greater trans influence of CO than of DPVP. The Mo-P bond lengths for (dppe)Mo (CO)4 (2.5020 (11) A, ave.) lie between these two values.
