W. Reinhardt, Heinrich Meyer, A. Weiss
Institut für Anorganische Chemie der Universität München,
Meiserstr. 1, D-8000 München 2, Germany
(Received December 13, 1984: Communicated by A. Rabenau)
| ABSTRACT |
Intercalation complexes Mx(DMSO)y[Cr3+1-xCr2+xOCl have been obtained by cathodic reduction of chromium oxide chloride in a solution of M+ (Li+, Na+, K+) in dimethyl-sulfoxide (DMSO).
From galvanostatic experiments upper limits for x were determined to be x = 0.12 for Li+ and x = 0.05 for Na+ and K+.
Correlations between the degree of reduction (x), ionic radii of M+, amount of solvent intercalation (y), lattice expansion and M+-coordination are discussed. Chromium oxide chloride samples with either chloride deficiency or Cl- by O2- replacement showed a degree of reduction of only x = 0.05 upon Li+-Intercalation. |