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The crystal structure of caratiite

  • Herta Effenberger (a1) and Josef Zemann (a1)

Abstract

The crystal structure of caratiite, K4Cu4O2 (SO4)4 MeCl (a 13.60(2), c 4.98(1) Å, Z = 2) was solved in space group I4 from single crystal data, and refined to R = 0.035 for 654Fo > 6σ(Fo). The atomic arrangement is characterized by Cu2O(SO4)2 chains parallel to [001], with Cu in (4 + 1) co-ordination and O surrounded tetrahedrally by four Cu atoms. These chains are interconnected by K atoms to a framework, the channels of which house the Me and Cl atoms. The nature of the Me atoms is not completely clear; most probably the position is half occupied by Cu, fully occupied by Na, or occupied by a mixture of the two.

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References

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Baur, W. H. (1964) Acta Crystallogr. 17, 1361–9.
Brown, I. D., and Wu, K. K. (1976) Ibid. B32, 1957-9.
Clark, A. M., Fejer, E. E., and Couper, A. G. (1984) Mineral. Mag. 48, 537–9.
Cocco, G., Fanfani, L., and Zanazzi, P. F. (1972) In Handbook of Geochemistry, Vol. II-2 (Wedepohl, K. H., ed.) 19-A-1-A-9. Springer Verlag: Berlin, Heidelberg, New York.
Fliigel-Kahler, E. (1963) Acta Crystallogr. 16, 100914.
International Tables for X-ray Crystallography (1974) Vol. IV (Ibers, J. A. and Hamilton, W. C., eds.) The Kynoch Press.
Prewitt, C. T. (1966) SFLS-5. Structure Factor Least- Squares Program (Unpublished).
Sheldrick, G. M. (1976) SHELX-76. Programme fuer die Strukturbestimmung. Univ. Cambridge, England.
Wells, A. F. (1949) Acta Crystallogr. 2, 175–80.
Sheldrick, G. M. (1962) Structural Inorganic Chemistry. Clarendon Press, Oxford.
Wuensch, B. J. (1972) In Handbook of Geochemistry, Vol. II-2 (Wedepohl, K. H., ed.) 16-A-1-A-19. Springer Verlag: Berlin, Heidelberg, New York.
Zachariasen, W. H. (1967) Acta Crystallogr. 23, 558–64.
Zemann, J. (1961) Fortschr. Mineral. 39, 59–68.
Zachariasen, W. H. (1972) in Handbook of Geochemistry, Vol. II-3 (Wedepohl, K. H. , ed.), 29-A-1-A-13. Springer Verlag: Berlin, Heidelberg, New York.

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