TY - JOUR
T1 - Sterically hindered diphosphines (Ph2P)2C=CHR (R = Me or Ph) and their derivatives
AU - Bookham, Jonathan
AU - Conti, Fosca
AU - McFarlane, H.Christina E.
AU - McFarlane, William
AU - Thornton-Pett, Mark
PY - 1994
Y1 - 1994
N2 - Reactions of (Ph2P)2C=CHR (R = Me or Ph) with E (E = S or Se) yielded the corresponding mono- and di-chalcogenides and the mixed S/Se derivatives, 1H, 13C and 31P NMR parameters for which are reported. These are rationalized in terms of conformational preferences associated with the relative P-E and phosphorus-lone pair orientations. The complexes [M(CO)4{(Ph2P)2C=CHR}] (M = Mo or W, R = Me or Ph) have also been prepared and have NMR parameters which can be accounted for similarly. The crystal structure of (Ph2P)2C=CHMe has been determined by single-crystal X-ray diffraction and shows that the solid-state conformation is similar to that deduced in solution on the foregoing basis.
AB - Reactions of (Ph2P)2C=CHR (R = Me or Ph) with E (E = S or Se) yielded the corresponding mono- and di-chalcogenides and the mixed S/Se derivatives, 1H, 13C and 31P NMR parameters for which are reported. These are rationalized in terms of conformational preferences associated with the relative P-E and phosphorus-lone pair orientations. The complexes [M(CO)4{(Ph2P)2C=CHR}] (M = Mo or W, R = Me or Ph) have also been prepared and have NMR parameters which can be accounted for similarly. The crystal structure of (Ph2P)2C=CHMe has been determined by single-crystal X-ray diffraction and shows that the solid-state conformation is similar to that deduced in solution on the foregoing basis.
UR - https://www.scopus.com/pages/publications/37049080423
U2 - 10.1039/DT9940001791
DO - 10.1039/DT9940001791
M3 - Article
SN - 0300-9246
SN - 1364-5447
SN - 1472-7773
SN - 1477-9234
SP - 1791
EP - 1797
JO - Journal of the Chemical Society, Dalton Transactions
JF - Journal of the Chemical Society, Dalton Transactions
IS - 12
ER -