P3121（D3^4）空间群晶体的Raman谱研究（Ⅱ）：α石英晶体的Raman谱

STUDY OF RAMAN SPECTRA FOR CRYSTALS WITH SPACE GROUP P3_121(D_3~4) ( Ⅱ ) THE RAMAN SPECTRA OF a-QUARTZ

依据Ｐ３１２１（Ｄ３＾４）空间群的对称性，认为α石英晶体的元胞包含６个ＳｉＯ２分子，某元胞常数应为ｃ＝１．０７８８ｎｍ，α＝０．４９０４ｎｍ。同时，用实验证实了这个观点。

Based on the symmetry of the space group P3121l (D34), we consider that there are six molecules per primitive cell in a-quartz, and the constants of the primitive cell should be c = 1. 0788 nm and a = 0. 4904nm This point of view has been confirmed by our experiment.