From X( YY)Z arrangement we obtained Ag plus B1g modes.By comparing X(ZZ) Y with X( YY)Z arrangement, we could get B1g mode.We calculated the scattering efficiency of different vibrational modes.

• 选择不同几何配置的拉曼光谱,获得了不同的晶格振动模并计算了不同晶格振动模的散射效率。