作者:Katharina Butsch、Axel Klein、Matthias Bauer
DOI:10.1016/j.ica.2011.02.072
日期:2011.8
Three new chiral ligands bearing an O,O',N donor set (OmethoxyOhydroxyNpyridine) were synthesised and coordinated to Fe-III, Fe-II, Ni-II, Cu-II and Zn-II to yield complexes with the general formula [M(OON)Cl-x](y). While the pyridine N and the hydroxy O atoms coordinate strongly to all applied metal ions, the methoxy donor seems not to be involved in coordination, although some evidence for a weak interaction between O-Me and the Zn-II were found in NMR spectra. In the bidentate O', N coordination mode the new ligands exhibit several coordination geometries as analysed in the solid compounds by XRD, EXAFS and EPR and in solution by UV-Vis absorption, cyclic voltammetry, EXAFS, EPR or NMR spectroscopy. (C) 2011 Elsevier B.V. All rights reserved.