Triclinic Structure of Birefringent Crystals of K(AlCr)(SO)⋅12HO

Journal of Structural Chemistry(2001)

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摘要
The crystal structure of alum K(AlCr)(SO)⋅12HO possessing anomalous birefringence was refined in space groups Pa3 and P1 ( = = = 12.165(2) Å, = 0.0587). The distortions of cubic symmetry are attributed to the peculiarities of the orientational disorder in the distribution of SO tetrahedra and to the different degrees of distortion of the aluminum octahedra.
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关键词
Aluminum,Physical Chemistry,Crystal Structure,Inorganic Chemistry,Orientational Disorder
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