Li2BaSc(BO3)2F and LiBa2Pb(BO3)2F with Layered Structures featuring Special Li-O/F Configurations

被引：10
|
作者：
Chen, Yanna [1 ,2 ]
Zhang, Min [1 ]
Hu, Cong [1 ,2 ]
Wu, Hongping [1 ]
Yang, Zhihua [1 ]
Pan, Shilie [1 ]
机构：
[1] Xinjiang Tech Inst Phys & Chem, CAS Xinjiang Key Lab Elect Informat Mat & Devices, CAS Key Lab Funct Mat & Devices Special Environm, 40-1 South Beijing Rd, Urumqi 830011, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
CHEMISTRY-A EUROPEAN JOURNAL | 2018年 / 24卷 / 58期
基金：
对外科技合作项目（国际科技项目）; 中国国家自然科学基金;
关键词：
(2)(infinity)[Li-2(BO3)(2)F] double layer; borate fluorides; layered structures; Li-O/F configurations; LiO4F2; octahedron; NONLINEAR-OPTICAL MATERIAL; BOND-VALENCE PARAMETERS; 2ND-HARMONIC GENERATION; KBBF-FAMILY; NONCENTROSYMMETRIC MATERIALS; BORATE CRYSTAL; BENIGN MEMBER; NLO CRYSTALS; FRAMEWORK; RB;
D O I：
10.1002/chem.201804126
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Two new borate fluorides, Li2BaSc(BO3)(2)F and LiBa2Pb(BO3)(2)F, with layered structures featuring special Li-O/F configurations have been successfully prepared by the high-temperature solution method. Li2BaSc(BO3)(2)F contains the first reported (2)(infinity)[Li-2(BO3)(2)F] double layers that are evolved from (2)(infinity)[Be2BO3F2] single layers in KBe2BO3F2 through substituting BeO4 with the LiO3F tetrahedra. The adjacent double layers are tightly connected by strong Sc-O bonds, generating the strongest interlayer bond and smallest interlayer distance among KBe2BO3F2 derivatives with double-layered structures. LiBa2Pb(BO3)(2)F features (2)(infinity)[Li(BO3)(2)F] single layers built up of special LiO4F2 octahedra and the BO3 triangles. To our best knowledge, the LiO4F2 octahedron is observed for the first time in borates. Besides, the LiO4F2 octahedra construct unique (1)(infinity)[LiO4F] straight chains through sharing apical F atoms, which is different from the configurations of the similar six-coordinated LiO6 octahedra in other borates.
引用
收藏
页码：15477 / 15481
页数：5
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