A phenoxyl radical complex of copper(ii)Electronic supplementary information (ESI) available: synthesis and characterisation of HL, 1, [1][BF4] and 2; crystallographic data for 1·4DMF, and details of electrochemical experiments. See http://www.rsc.org/suppdata/cc/b1/b105186p/
Abstract
A new N,O-bidentate pro-ligand (HL), [ML2] (M = Cu, Zn) and [CuL2][BF4] have been synthesised; [CuL2]·4DMF and [CuL2][BF4]·2CH2Cl2 have been crystallographically and spectroscopically characterised; these data indicate that [CuL2]+ cations are constituted as [Cu2+(L˙)(L−)]+ and involve the phenoxyl radical L˙.