【摘要】 对湖北、安徽地区绿松石进行了激光拉曼光谱测试分析。结果表明,绿松石中H2O,OH-及PO43-的基团振动是导致其激光拉曼光谱形成的主要原因。3510~3440 cm-1的谱峰是由ν(OH)伸缩振动所致,其中ν(OH)振动导致的强拉曼特征谱峰在3470 cm-1附近,ν(H2O)伸缩振动致拉曼谱峰位于3290~3070cm-1附近的较为宽缓的弱谱峰处;由3ν(PO4)伸缩振动致强拉曼特征谱峰在1200~1030 cm-1之间,其中3ν(PO4)振动导致的强拉曼特征谱峰在1039 cm-1附近,4ν(PO4)弯曲振动位于650~540 cm-1范围,2ν(PO4)的弯曲振动谱峰位于500~410 cm-1处;不同产地、不同结晶类型的绿松石表现出的拉曼谱峰特征基本一致。更多还原

【Abstract】 The Raman spectrum has been employed to discuss the explanation of the structure of water and the vibration of [PO 3-4] tetrahedron of the turquoise from Hubei and Anhui province.The Raman spectra are resulted mainly from vibrations of water,hydroxyl units and [PO 3-4] tetrahedron of turquoise.The 3 510-3 440 cm-1 bands with the main Raman spectra peak at 3 470 cm-1 were assigned to the ν(OH) stretching vibrations and the 3 2903 070 cm-1 bands assigned to the ν(H 2O) stretching vibrations.The bands observed at 1 200-1 030 cm-1 with the strong peak at 1 039 cm -1 were assigned to ν 3(PO 4) antisymmetric stretching vibrations.And the Raman spectra peaks at 650-540 cm-1 and 500-410 cm-1 were attributed to the ν 4 and ν 2 bending vibrations of [PO 3-4] tetrahedron,respectively.The spectra of the turquoise from different localities are basically similar and subtly different.更多还原