Tris{bis[imino(methoxy)methyl]aminato}cobalt(III): an electronic analogue of tris(β-diketonates)
摘要:
The cobalt(III) complex [Co(HNCOMeNCOMeNH)(3)]. i.e. [CoL(3)], has been prepared from the copper precursor. [CuL(2)] in a Me(2)SO-CoS suspension. Its crystal and molecular structure has been determined by X-ray diffraction (R = 0.0577). The crystal consists of isolated molecules exhibiting a {CoN6) chromophore. In solution the complex is ESR silent. evidencing the absence of Co-II or Cu-II. The ligand L generates a rather strong ligand field (Delta/hc = 21 200 cm(-1)) as follows from an analysis of the electronic spectra.