Issue 20, 1974

Palladium(II), platinum(II), and rhodium(III) complexes of o-phenylene-bis(diphenylarsine) and (o-diphenylarsinophenyl)diphenylphosphine

Abstract

Thirty five complexes of o-phenylenebis(diphenylarsine)(pdpa) and (o-diphenylarsinophenyl)diphenylphosphine (padpp) including types [M(L)X2], [ML2][ClO4]2, [M(L)2X2](M = Pd or Pt; L = pdpa or padpp; X = Cl, Br, I, or CNS), and [Pd(pdpa)2X]ClO4 have been prepared. The planar thiocyanates are formulated [Pd(pdpa)(NCS)(SCN)] and [Pt(padpp)(NCS)(SCN)]. In dichloromethane the [Pt(pdpa)(SCN)2] complex partly isomerises to [Pt(pdpa)(NCS)(SCN)]. The five-co-ordinate [PdL2(NCS)]CNS (L = pdpa or padpp) species also isomerise in solution. The diperchlorates are planar, whilst in solution the [M(L)2X2] complexes are predominantly five-co-ordinate. On heating, the [M(L)2X2](X = Cl, Br, or I) complexes dissociate in the solid state into [M(L)X2] and free L. The tendency to five-co-ordination is Pd > Pt and pdpa > padpp. Rhodium(III) halides form adducts [Rh(pdpa)2X2]X (X = Cl, Br, or I), [Rh(padpp)2X2]X (X = Cl or Br), and [{Rh(padpp)I3}2].

Article information

Article type
Paper

J. Chem. Soc., Dalton Trans., 1974, 2238-2242

Palladium(II), platinum(II), and rhodium(III) complexes of o-phenylene-bis(diphenylarsine) and (o-diphenylarsinophenyl)diphenylphosphine

W. Levason and C. A. McAuliffe, J. Chem. Soc., Dalton Trans., 1974, 2238 DOI: 10.1039/DT9740002238

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