Kristallstruktur und Infrarot-Absorptionsspektrum von synthetischem Monohydrocalcit,CaCO3·H2O |
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| Authors: | Herta Effenberger |
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| Institution: | (1) Institut für Mineralogie und Kristallographie, Universität Wien, A-1010 Wien, Österreich |
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| Abstract: | The crystal structure of synthetic monohydrocalcite was solved withPatterson andFourier syntheses and refined for the subcell withá=6.0931 (9) Å, =7.5446 (18) Å, space group P3121 or P3221,Z=3 toR
w=0.039. Very weak superstructure reflections define a cell with
andc=, space group P31 or P32,Z=9. The superstructure result from ordering of the CO3 groups and was refined with rigid carbonate groups toR
w=0.086. The interpretation of the IR spectrum is in agreement with the results of the X-ray structure analysis. |
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| Keywords: | Carbonate CaCO3· H2O crystal structure IR spectrum |
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