Electrochemical oxidative cleavage of the platinum-hydrogen bond in trans-[PtHCl(PEt3)2]
1990; Elsevier BV; Volume: 175; Issue: 1 Linguagem: Inglês
10.1016/s0020-1693(00)83195-3
ISSN1873-3255
Autores Tópico(s)Organometallic Complex Synthesis and Catalysis
ResumoThe electrochemical oxidation of the platinum(II) hydride, trans-[PtHCl(PEt3)2], in CH3CN containing NBu4ClO4 at a platinum gauze electrode produces almost exclusively platinum(II) complexes as products, none of which contain platinum-hydrogen bonds. 31P{1H} NMR spectroscopy and independent synthesis identify trans-[PtCl(solvent)(PEt3)2]+ as the major oxidation product. Non-aqueous acid-base titrations on the electrochemically oxidized solutions show that Pt-H cleavage occurs with H+ formation. The formal overall oxidation process is thus identified as H− → H+ and not Pt(II) → Pt(IV).
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