Mercury型X-单晶射线衍射仪的使用及维护  

The operation and maintenance of the single-crystal X-ray diffraction

作　　者：李海燕[1,2] 张勇 吴冰[1] 

机构地区：[1]苏州大学分析测试中心,江苏苏州215123 [2]苏州大学材料与化学化工学部,江苏苏州215123

出　　处：《苏州大学学报（自然科学版）》2011年第4期78-80,共3页Journal of Soochow University(Natural Science Edition)

摘　　要：单晶X-射线衍射法是一种无损伤的分析测试技术,它能够提供单晶物质的内部结构,包括晶胞尺寸、键长、键角以及原子的空间排布等.单晶X-射线衍射法是获得单晶结构的一种非常重要的手段,影响数据好坏的因素也是多方面的.本文中,我们将以Mercury CCD为例讨论五个方面的影响因素,包括仪器的校准与调试、晶体的挑选与晶体的放置、合适曝光时间的选择、仪器的维护等.如果在测试过程中注意这几个方面的问题将会得到较好的测试结果.Single-crystal X-ray diffraction is a non-destructive analytical technique which provides detailed information about the internal lattice of crystalline substances,including unit cell dimensions,bond-lengths,bond-angles,and details of site-ordering.Single-crystal X-ray diffraction is very important instrument in obtaining the crystal structure.Many factors may determine the quality of data.In this paper,we will take Mercury CCD as the example to discuss five of these factors including the calibration and debugging of the instrument,the selection and placement of the crystals,suitable exposure time,and maintenance of the instrument.If the attention can be paid to them,the results will be better.

关 键 词：单晶衍射 测试条件 仪器维护 

分 类 号：O6-33[理学—化学]