Cobalt(III) Complexes with Quadridentate Ligands. XII. Crystal Structure of cis-α-Salicylato(triethylenetetramine)cobalt(III) Chloride Pentahydrate

The structure of the cis-α-salicylato(triethylenetetramine)cobalt(III) ion was confirmed by an X-ray crystallographic analysis. The conformation of the triethylenetetramine part of this complex was slightly different from the cis-α-glycinato(triethylenetetramine)cobalt(III) ion. A comparison of the stability of the this cis-α-salicylato complex with that of the cis-α-glycinato complex on the cation-exchange resin and in water, respectively, are described. The signals of the 1H NMR and 13C NMR spectra were assigned based on the crystal structure.

[1]  E. Toyota,et al.  Cobalt(III) Complexes with Quadridentate Ligands. VIII. The Preparation and Properties of Cis-β1 and β2-Isomers of the Thiosalicylato(quadridentate amine)cobalt(III) Complexes , 1989 .

[2]  E. Toyota,et al.  Cobalt(III) complexes with quadridentate ligands. VI: The preparation and properties of cis-β1 and β2-isomers of the salicylaldehydato(triethylenetetramine)cobalt(III) complex , 1985 .

[3]  E. Toyota,et al.  Preparation and Properties of “β1 and β2”-Isomers of the Salicylato(triethylenetetramine)cobalt(III) Complex , 1979 .

[4]  J. D. Bell,et al.  Structures, chemistry, and relative energies of the [Co(trien)(glyO)]2+ ions. 3. .alpha.-(RR,SS)-[Co(trien)(glyO)]2+ and .alpha.-(RR,SS)-[Co(trien)(glyOEt)Cl]2+ ions , 1977 .

[5]  L. Marzilli,et al.  Structures, properties, and relative energies of [(triethylenetetramine)(glycinato)cobalt](2+) ions. .beta.2-(RS,SR)- and .beta.2-(RR,SS)-[(triethylenetetramine)(glycinato)cobalt](2+) ions , 1975 .

[6]  L. Marzilli,et al.  Structure, conformational analysis, and properties of diastereoisomeric forms of .beta.1-glycinatotriethylenetetraminecobalt(III) ions , 1974 .

[7]  G. R. Brubaker,et al.  Oxalatotetramines of cobalt(III) , 1971 .

[8]  L. Marzilli,et al.  The stereochemistry of some cobalt(III) triethylenetetramine complexes of glycine and sarcosine , 1967 .

[9]  H. Sekizaki,et al.  Cobalt(III) Complexes with Quadridentate Ligands. XI.The Preparation and Properties of cis-α-Isomer of the Salicylato(triethylenetetramine)cobalt(III) Complex , 1992 .