The synthesis and characterization of facial and meridional isomers of uns-cis-(ethylenediamine-N-N'-di-3-propionato) cobalt(III) complexes with S-lysine and S-histidine

In the reaction of sodium uns-cis-(ethylenediamine-N-N’-di-3-propionato)-(carbonato) cobaltate(III) dihydrate and the corresponding amino acid (S-lysine or S-histidine) at 70 oC, both the theoretically possible facial and meridional isomers of the uns-cis-(ethylenediamine-N-N’-di-3-propionato)(aminoacidato)cobalt(III) complexes were prepared. The complexes were isolated chromatographically and characterized by elemental analyses, as well as by electron absorption and infrared spectroscopy.

[1]  Y. Shimura,et al.  Cobalt(III) complexes with tripodlike quadridentate ligands. III. Absorption and circular dichroism spectra of cobalt(III) complexes containing N-(2-aminoethyl)iminodiacetate and amino carboxylate or 1,2-diamine. , 1982 .

[2]  H. Kawaguchi,et al.  The Base-Catalyzed Isomerization of the (Iminodiacetato)-(N-methyliminodiacetato)cobaltate(III) and Bis(iminodiacetato)cobaltate(III) Ions , 1984 .

[3]  D. Minic,et al.  PREPARATION AND CHARACTERIZATION OF FACIAL AND MERIDIONAL ISOMERS OF UNS-CIS-(ETHYLENEDIAMINE-N,N'-DI-3-PROPIONATO)(GLYCINATO)COBALT(III) SEMIHYDRATE , 1998 .

[4]  K. Nakamoto.  Infrared and Raman Spectra of Inorganic and Coordination Compounds , 1978 .

[5]  D. Radanović.  Optical activity of cobalt(III), chromium(III) and rhodium(III) complexes with aminopolycarboxylate EDTA-type and related ligands , 1984 .

[6]  H. Nakazawa,et al.  Synthesis, characterization, and optical resolution of electrically neutral octahedral cobalt(III) complexes containing the tetradentate ligand. , 1987 .

[7]  J. Hidaka,et al.  Preparation and Characterization of uns-cis-Trimethylenediamine-N,N′-diacetato Cobalt(III) Complexes with Several L-Amino Acids , 1979 .

[8]  Y. Shimura,et al.  Cobalt(III) Complexes with Tripodlike Quadridentate Ligands. II. Preparations, Absorption Spectra and Circular Dichroism of (Amino carboxylato or 1,2-diamine)[N,N-bis(2-aminoethyl)glycinato]cobalt(III) Complexes , 1982 .

[9]  P. Garnett,et al.  Ethylenediaminediacetate complexes of cobalt(III). Part I. The preparations and configurations of some ethylenediamine-N,N′-diacetate cobalt(III) complexes , 1974 .