(IUCr) Crystallography Journals Online

Acta Cryst. (2007). E63, i47-i49 [ doi:10.1107/S1600536807002000 ]

Reinvestigation of eakerite, Ca₂SnAl₂Si₆O₁₈(OH)₂·2H₂O: H-atom positions by single-crystal X-ray diffraction and correlation with Raman spectroscopic data

H. Uchida, R. T. Downs and R. M. Thompson

Abstract: The crystal structure of natural eakerite [Kossiakoff & Leavens (1976). Am. Mineral. 61, 956-962] has been reinvestigated, the H-atom positions determined and the hydrogen-bonding scheme elucidated. The OO separations of the O-HO hydrogen bonds correlate well with the frequencies of the three corresponding Raman peaks according to Libowtzky's regression curve. The Sn atom has site symmetry $\overline{1}$ .

Online 24 January 2007

Reinvestigation of eakerite, Ca2SnAl2Si6O18(OH)2·2H2O: H-atom positions by single-crystal X-ray diffraction and correlation with Raman spectroscopic data

H. Uchida, R. T. Downs and R. M. Thompson

Reinvestigation of eakerite, Ca₂SnAl₂Si₆O₁₈(OH)₂·2H₂O: H-atom positions by single-crystal X-ray diffraction and correlation with Raman spectroscopic data