Synthesis and coordination chemistry of meta-perfluoroalkyl-derivatised triarylphosphines

The synthesis and coordination chemistry of the PPhx(C6H4-3-C6F13)(3-x) (x= 0, 1, 2) ligands containing perfluoroalkyl ponytails have been investigated . A comparison of the spectroscopic data for coordination complexes contain ing these ligands with those for complexes containing PPh3 or the related p ara-derivatised triarylphosphines indicates that these meta-derivatised lig ands are slightly poorer sigma-donors and that steric crowding in the [PtCl 2L2] complexes results in the formation of the normally thermodynamically l ess-favourable trans-isomers. (C) 1999 Elsevier Science Ltd. All rights res erved.