Abstract
Treatment of [ PtMe2(cod)](cod = cyclo-octa-1,5-diene) with bis(diphenylarsino)methane (dpam) gives the binuclear complex [Me2Pt(µ-dpam)2PtMe2] and none of the mononuclear complex [PtMe2(dpam-AsAs′)]. Treatment of [ Me2Pt(µ-dpam)2PtMe2] with dpam results in an equilibrium mixture containing the bis-monodentate complex cis-[PtMe2(dpam-As)2]. The chelate complexes [PtX2(dpam-AsAs′)](X = Cl, Br, or I) have been prepared, which on further treatment with one equivalent of dpam gave the neutral complexes trans-[PtX2(dpam-As)2](X = Cl or Br). The complex trans-[PtCl2(dpam-As)2] gives the heterobimetallic complex trans-[Cl2Pt(µ-dpam)2HgCl2] on treatment with HgCl2. Treatment of trans-[PtCl2(dpam-As)2] with the methoxycyclo-octenyl complex [Pt2(µ-OMe)2(C8H12OMe)2] gives the PtI dimer [ClPt(µ-dpam)2PtCl], which on further treatment with CO yields [ClPt(µ-CO)(µ-dpam)2PtCl].
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