Tri(allyl)- and tri(methylallyl)arsine complexes of palladium(ii) and platinum(ii): synthesis, spectroscopy, photochemistry and structures
Abstract
Tri(allyl)- and tri(methylallyl)arsine complexes of palladium(II) and platinum(II) with the formulae [MX2L2]
(M = Pd, Pt and X = Cl, Br, I): [Pd2Cl2(μ-Cl)2L2], [PdCl(S2CNEt2)L] and [Pd2Cl2(μ-dmpz)2L2]
[L = As(CH2CH![[double bond, length as m-dash]](https://www.rsc.org/images/entities/char_e001.gif)
CH2)3 (L′), As(CH2CMeCH2)3
(L″), dmpz = 3,5-dimethylpyrazolate] have been prepared. All the complexes have been characterized by elemental analyses and by CH2)3}2]
(M = Pd, X = Cl or Br), [MX2{As(CH2CMeCH2)3}2]
(M = Pd, X = Cl or Br; M = Pt, X = Cl) and [Pd2Cl2(μ-Cl)2{As(CH2CMeCH2)3}2] have been established by single crystal X-ray diffraction analyses. The mononuclear complexes exclusively adopt the trans configuration with the exception of [PdCl2L″2], which could be isolated as cis and trans isomers. In the binuclear derivative the arsine
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