The novel, chelating C, N-bidentate 2,6-bis(dimethylamino)phenyl ligand (R−), showing ambidentate N,N′-character in M(R)2 (M = Ge, Sn, Pb) and Sn(R)X [X = N(SiMe3)2, CH(SiMe3)2, Cl]

Abstract

Treatment of MCl 2 or [Sn(µ-Cl){N(SiMe 3 ) 2 }] 2 with [Li(µ-R)] 3 [R = C 6 H 3 (NMe 2 ) 2 -2,6] under mild conditions and in appropriate stoichiometry affords MR 2 (M = Ge 1, Sn 2, Pb 3) or Sn(R)X [X = N(SiMe 3 ) 2 4, Cl 6], while 4 or 6 with LiCH(SiMe 3 ) 2 give SnR[CH(SiMe 3 ) 2 ] 5; compounds 1–6 are characterised by their multinuclear NMR and MS spectra and 1–3 by X-ray crystal structures.