Barium-deficient celsian, Ba1-xAl2-2xSi2+2xO8 (x=0.20 or 0.06)

M G  Skellern; R A  Howie; E E  Lachowski; J M S  Skakle

doi:10.1107/S0108270102023053

Barium-deficient celsian, Ba1-xAl2-2xSi2+2xO8 (x=0.20 or 0.06)

M G Skellern, R A Howie, E E Lachowski, J M S Skakle

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

Barium-deficient forms of celsian (barium aluminium silicate) with the formula Ba1-xAl2-2xSi2+2xO8 (x = 0.20 and 0.06) have been identified. In contrast with the celsian-orthoclase solid solutions which have been reported previously, these forms, refined in the space group C2/m, with Ba and one O atom in the 4i sites with m site symmetry, and a further O atom in a 4g site with twofold axial symmetry, suggest a slight solid solution with silica. The serendipitous preparation of the compounds represents a possible hazard associated with solid-state synthesis.

Original language	English
Pages (from-to)	i11-i14
Number of pages	4
Journal	Acta Crystallographica Section C, Crystal Structure Communications
Volume	C59
DOIs	https://doi.org/10.1107/S0108270102023053
Publication status	Published - 2003

Keywords

crystal-structure
database

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abstract = "Barium-deficient forms of celsian (barium aluminium silicate) with the formula Ba1-xAl2-2xSi2+2xO8 (x = 0.20 and 0.06) have been identified. In contrast with the celsian-orthoclase solid solutions which have been reported previously, these forms, refined in the space group C2/m, with Ba and one O atom in the 4i sites with m site symmetry, and a further O atom in a 4g site with twofold axial symmetry, suggest a slight solid solution with silica. The serendipitous preparation of the compounds represents a possible hazard associated with solid-state synthesis.",

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T1 - Barium-deficient celsian, Ba1-xAl2-2xSi2+2xO8 (x=0.20 or 0.06)

AU - Skellern, M G

AU - Howie, R A

AU - Lachowski, E E

AU - Skakle, J M S

PY - 2003

Y1 - 2003

N2 - Barium-deficient forms of celsian (barium aluminium silicate) with the formula Ba1-xAl2-2xSi2+2xO8 (x = 0.20 and 0.06) have been identified. In contrast with the celsian-orthoclase solid solutions which have been reported previously, these forms, refined in the space group C2/m, with Ba and one O atom in the 4i sites with m site symmetry, and a further O atom in a 4g site with twofold axial symmetry, suggest a slight solid solution with silica. The serendipitous preparation of the compounds represents a possible hazard associated with solid-state synthesis.

AB - Barium-deficient forms of celsian (barium aluminium silicate) with the formula Ba1-xAl2-2xSi2+2xO8 (x = 0.20 and 0.06) have been identified. In contrast with the celsian-orthoclase solid solutions which have been reported previously, these forms, refined in the space group C2/m, with Ba and one O atom in the 4i sites with m site symmetry, and a further O atom in a 4g site with twofold axial symmetry, suggest a slight solid solution with silica. The serendipitous preparation of the compounds represents a possible hazard associated with solid-state synthesis.

KW - crystal-structure

KW - database

U2 - 10.1107/S0108270102023053

DO - 10.1107/S0108270102023053

M3 - Article

VL - C59

SP - i11-i14

JO - Acta Crystallographica Section C, Crystal Structure Communications

JF - Acta Crystallographica Section C, Crystal Structure Communications

SN - 0108-2701

ER -