调制结构矿物晶体的单晶X射线衍射特征  

SINGLE CRYSTAL X-RAY DIFFRACTION CHARACTERISTICS OF MODULATED MINERAL CRYSTALS

作　　者：李国武[1] 施倪承[1] 马喆生[1] 熊明[1] 唐攀科[2] 

机构地区：[1]中国地质大学北京晶体结构实验室矿物岩石材料开发应用国家专业实验室,北京100083 [2]有色金属矿产地质调查中心,北京100012

出　　处：《矿物学报》2009年第1期7-12,共6页Acta Mineralogica Sinica

基　　金：国家自然基金项目(批准号:40672030)

摘　　要：调制结构广泛存在于天然矿物中,利用具有照相特点的CCD平面高灵敏探测器单晶X射线衍射仪,对公度和非公度调制结构的单晶衍射特征进行了研究,根据倒易点的分布规律和晶胞特点提出了超结构的分类方法和非公度调制结构的高维指标化方法。Modulated structure occurs commensurate （super structure） and in some natural minerals. The single incommensurate modulated structure crystal X-ray diffraction characteristics of minerals were described using a two-di- mensional CCD area detector diffractometer. The classification of super structures was proposed based on reciprocal lattice and cell characteristics. The high dimensional indexing method was used in indexing single diffractions of incommensurate modulated structure minerals.

关 键 词：晶体结构测定 超结构 非公度调制结构 单晶衍射 

分 类 号：O614.812[理学—无机化学] TM262[理学—化学]