TY - JOUR
T1 - The disecondary phosphines [PhHP(CH2)nPHPh] (n = 2-4, 6): improved syntheses, NMR spectra and complexation behaviour with group VI Transition metal hexacarbonyls
AU - Kimpton, Bryan
AU - McFarlane, William
AU - Muir, Alan
AU - Patel, Pallavi
AU - Bookham, Jonathan
PY - 1993/10
Y1 - 1993/10
N2 - Improved preparations of the disecondary phosphines PhHP(CH2)nPHPh (n = 2, mppe; n = 3, mppp; n = 4, mpppb; n = 6 mpph) by the lithium cleavage of the corresponding ditertiary phosphine Ph2P(CH2)nPPH2 are described and various NMR parameters are reported; a 12 13C isotope effect upon δ(13P) is observed in the case of mppe. Reactions of mppe and mppp with [M(CO)6] (M = Cr, Mo, W) yield 1:1 complexes; both the meso and the rac isomers are produced, are separated and are unequivocally characterized by elemental analysis, vibrational spectroscopy and 1H, 13C and 31P NMR spectroscopy.
AB - Improved preparations of the disecondary phosphines PhHP(CH2)nPHPh (n = 2, mppe; n = 3, mppp; n = 4, mpppb; n = 6 mpph) by the lithium cleavage of the corresponding ditertiary phosphine Ph2P(CH2)nPPH2 are described and various NMR parameters are reported; a 12 13C isotope effect upon δ(13P) is observed in the case of mppe. Reactions of mppe and mppp with [M(CO)6] (M = Cr, Mo, W) yield 1:1 complexes; both the meso and the rac isomers are produced, are separated and are unequivocally characterized by elemental analysis, vibrational spectroscopy and 1H, 13C and 31P NMR spectroscopy.
UR - https://www.scopus.com/pages/publications/0001521572
U2 - 10.1016/S0277-5387(00)83079-X
DO - 10.1016/S0277-5387(00)83079-X
M3 - Article
SN - 0277-5387
VL - 12
SP - 2525
EP - 2534
JO - Polyhedron
JF - Polyhedron
IS - 20
ER -