Tertiary phosphines containing 2-thienyl group and their coordination chemistry

Tertiary phosphines containing 2-thienyl group of the type PR(n)th(3-n) (R = Me, Et or Ph: th = 2-thienyl; n = 1 or 2) have been prepared and their co ordination chemistry has been studied. Series of complexes of the types [Pd Cl2(PR(n)th(3-n))(2)], [PtX2(PR(n)th(3-n))(2)] (X = Cl, I, Me), [PtXY(PR(n) th(3-n))(2)] (X = Cl: Y = Me or SnCl3), [PtMe(py)(PR(n)th(3-n))(2)][PF6], [ MCl(mu- Cl)(PR(2)th)](2) (M = Pd or Pt), [PtCl2(CO)(PR(2)th)], [RhCl3(PEt(2 )th)(3)] and [RhCl(CO)(PR(n)th(3-n))(2)] have been synthesized with these p hosphines and characterized by elemental analyses, IR, H-1, P-31, Sn-119, P t-195 NMR spectroscopy. In all the cases phosphine acts as a monodentate li gand with only phosphorus-metal coordination.