有机无机(RNH_3)_2CuBr_4系列晶体的合成及结构表征  

Synthesis and structural characterization of series of organic and inorganic(RNH_3)_2CuBr crystal

作　　者：王亚珍[1] 余翔[1] 

机构地区：[1]江汉大学化学与环境工程学院,武汉430056

出　　处：《分析仪器》2011年第3期75-79,共5页Analytical Instrumentation

摘　　要：本文以溴化铜(CuBr2)为主要研究对象,通过变换有机组元并采用分步合成法制备了三种结构相似的层状类钙钛矿结构的晶体化合物。用扫描电子显微镜(SEM)、X射线衍射分析(XRD)和红外光谱(FTIR)分别对三种晶体的无机组元、有机组元和晶体结构进行了详细分析和探讨。实验结果均表明,当有机组元为丙胺和丁胺时,层状结构非常明显,而当有机组元为苯胺时,层状结构略差。这种层状结构的形成与有机组元的碳链长短和是否有苯环结构相关联,由于有机无机组元间主要是以分子间力(主要是氢键)相结合,因此有机组元的结构对层状材料的形成至关重要。Using CaBr2 as the main inorganic component,three kinds of layered perovskite-type organic-inorganic crystal compounds with similar structure were synthesized by changing organic component（stepwise method）.The inorganic component,organic component and crystalloid structures of three crystal compounds were characterized and analyzed in detail using scanning electron microscope,X-ray diffraction and Fourier transform infrared spectrometry.The experimental results indicated that the two-dimensional layered perovskite structures were formed with the c-axis perpendicular to the substrate surface,and the layered structures displayed very clearly when organic components were 1-propanamine and n-butyl.But when the organic component was aniline,the layered structures were not thus clear.The formation of layered structure has relation with the length of carbon bond and the presence of benzene ring.Since the organic and inorganic components are bound together mainly by intermolecular force（hydrogen bond）,the structure of organic component is very important to the formation of layered materials.

关 键 词：溴化铜 有机组元 层状类钙钛矿 合成与表征 

分 类 号：O782[理学—晶体学]