Polyhedron report number 62Dichloro and amino acid cobalt(III) complexes of N,N′-diethylethylenediamine-N,N′-Di-α-butyrate ligand

Add time:08/22/2019    Source:sciencedirect.com

A novel linear flexible ONNO-type tetradentate ligand, N,N′-diethylethylenediamine-N,N′-di-α-butyrate (deedba), and the dichloro, diaqua and amino acid (glycine, l-alanine, l-phenylalanine) cobalt(III) complexes of deedba have been synthesized via an H2O2 oxidation method. During the preparation of these complexes, the ligand has coordinated geospecifically to the cobalt(III) ion to give only one isomer, s-cis, which has been characterized by electronic absorption, 1H NMR and IR spectra, and elemental analysis. It is of interest that this is one of the few CoIII(edda)X2-type complex preparations, which gives only one isomer with geoselectivity.

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