Abstract: | Reaction of Pt(PnBu3)2Cl2 (1) or Pt(AsnBu32Cl2 (2) with stoichiometric amounts of 1,3,5-triethynylbenzene, [1,3,5-(H? C?C? )3C6H3] (3)yields monomeric, [1,3,5-Cl(PnBu3)2(Pt? C? C? )3C6H3] (4), [1,3,5-(C1)(AsnBu3)2Pt? C? C? 3C6H3] (5) or polymeric, {1,3,5-[(PnBu3)2Pt? C?C? ]3C6H3? )n (6), {1,3,5-[(AsnBu3)2Pt? C? C? ]3C6H3? }n (7) complexes. Treatment of (1) with (3) and 2,5-diethynyl-p-xylene,H? C? C? C6H2(CH3)2? C? C? H (8) in varying molar ratios yields a series of high molecular weight cross linked platinum metal containing polyyne copolymers. |