An unexpected dinuclear zwitterionic PtII cation [Pt2{C6H3(CH2NHMe2)2-2,6}2I4]2+ and alcohols from the reaction of an aryl(diamine)(aquo)PtII complex with alkyl iodides; X-ray and n.m.r. studies

Abstract

The unusual dinuclear zwitterionic platinum(II) complex [Pt₂{C₆H₃(CH₂NHMe₂)₂-2,6-C}₂I₄][CF₃SO₃]₂(3), characterized by X-ray crystallographic methods and ¹H n.m.r.spectroscopy, is formed together with ROH from the addition of an alkyl iodide RI(R = Et, Prⁱ, PhCH₂, allyl; but not Me) to [Pt{C₆H₃(CH₂NMe₂)₂-2,6-N,C,N′}(H₂O)][CF₃SO₃] in wet acetone; when R = Me the known arenonium complex [Pt{MeC₆H₃(CH₂NMe₂)₂-2,6-N,C,N′}I]⁺ results