Noncentrosymmetric K_(2)Mn_(3)(SO_(4))_(3)F_(2)·4H_(2)O and Rb_(2)Mn_(3)(SO_(4))_(3)F_(2)·2H_(2)O with pseudo-KTP structures  

作　　者：Yang Zhou Yanqiang Li Qingran Ding Youchao Liu Yangxin Chen Xitao Liu Xiaoying Huang Lina Li Sangen Zhao Junhua Luo 

机构地区：[1]College of Chemistry and Materials Science,Fujian Normal University,Fuzhou 350007,China [2]State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China [3]Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China,Fuzhou 350108,China

出　　处：《Chinese Chemical Letters》2021年第1期263-265,共3页中国化学快报（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Nos.21833010,21525104,21971238,61975207,21921001);the Key Research Program of Frontier Sciences of the Chinese Academy of Sciences(No.ZDBS-LYSLH024);Key Laboratory of Functional Crystals and Laser Technology,TIPC,CAS(No.FCLT 202003);Key Laboratory of New Processing Technology for Nonferrous Metal&Materials,Ministry of Education/Guangxi Key Laboratory of Optical and Electronic Materials and Devices(No.20KF-11)。

摘　　要：Two fluoride sulfates,K_(2)Mn_(3)(SO_(4))_(3)F_(2)·4H_(2)O(Ⅰ) and Rb_(2)Mn_(3)(SO_(4))_(3)F_(2)·2H_(2)O (Ⅱ) are obtained by water solution method.Single-crystal X-ray diffraction analysis indicated that they crystallize in space groups of Cmc2_(1.)Their structures feature a pseudo-KTP structure consisting of interconnecting[Mn_(3)(SO_(4))3F_(2)(H_(2)O)2]_(∞) layers,which are further packing along the a axis with alkali metal cations balancing the charges.The structure relationships between the two compounds are discussed.Secondharmonic generation measurements manifest that Ⅰ and Ⅱ have similar second-harmonic generation responses of about 0.2 and 0.25 times that of KH_(2)PO_(4).

关 键 词：Sulfate Second harmonic generation Crystal structure X-ray diffraction Thermogravimetric analysis 

分 类 号：TB34[一般工业技术—材料科学与工程]