Ligand transfer from a tris(imino)stannate anion; syntheses and structures of [{Cu[µ-NC(But)Ph]}4]·thf(thf = tetrahydrofuran) and [{Cu[µ- NC(But)Ph]}4(PPh3)2]·6thf

Abstract

The group 11 metal imino complexes [{Cu[µ-NC(Bu^t)Ph]}₄]·thf 2(thf = tetrahydrofuran) and [{Cu[µ-NC(Bu^t)Ph]}₄(PPh₃)₂]·6thf 3 have been prepared by the unusual ligand-transfer reactions of the tris(imino)stannate complex Sn[µ-NC(Bu^t)Ph]₃Li·thf with CuCl; both complexes have been shown by crystallography to contain planar Cu₄ cores.