157341-72-5Relevant academic research and scientific papers
Sterically Hindered Diphosphines (Ph2P)2C=CHR (R = Me or Ph) and their Derivatives
Bookham, Jonathan L.,Conti, Fosca,McFarlane, H. Christina E.,McFarlane, William,Thornton-Pett, Mark
, p. 1791 - 1798 (2007/10/02)
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-Ione pair orientations.The complexes > (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.
