An Alcohol-templated Borate Based on [B_(14)O_(20)(OH)_6]^(4-) Polyborate Anions  

作　　者：曹高娟 孙燕琼 郑寿添 杨国昱 

机构地区：[1]State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,The Chinese Academy of Sciences,Fuzhou,Fujian 350002,China

出　　处：《Chinese Journal of Structural Chemistry》2009年第5期525-530,共6页结构化学（英文）

基　　金：Supported by the NNSFC (Nos. 50872133 and 20821061);the National Natural Science Fund for Distinguished Young Scholars of China (No. 20725101);the 973 Program (No. 2006CB932904);the NSF of Fujian Province (No. E0510030);the Key Project from FJIRSM (No.SZD07001)

摘　　要：A new borate [H2EG][B7O10（OH）3] （1） based on [B14O20（OH）6]4- polyborate anions has been solvothermally synthesized in the presence of H2EG as a template （EG = ethylene glycol）. The structure was determined by single-crystal X-ray diffraction and further characterized by FFIR, elemental analysis and thermogravimetric analysis. Compound 1 crystallizes in the triclinic system, space group Pi, with a = 8.5095（4）, b = 8.8694（4）, c = 10.0756（4） A, a = 95.094（2）, β = 96.936（2）, γ = 116.844（2）°, V = 664.66（5） A3. The structure of 1 consists of [B14O20（OH）6]4- moiety, which could be regarded as the largest isolated polyborate anion so far. The anions are interlinked via hydrogen bonding to form a 3D supramolecular network, whereas the diprotonated [H2EG]2＋ are filled in the free space of inorganic borate network and interact with the inorganic framework by extensive hydrogen bonds. It is noteworthy that the EG acts not only as a solvent, but also as a template.A new borate [H2EG][B7O10（OH）3] （1） based on [B14O20（OH）6]4- polyborate anions has been solvothermally synthesized in the presence of H2EG as a template （EG = ethylene glycol）. The structure was determined by single-crystal X-ray diffraction and further characterized by FFIR, elemental analysis and thermogravimetric analysis. Compound 1 crystallizes in the triclinic system, space group Pi, with a = 8.5095（4）, b = 8.8694（4）, c = 10.0756（4） A, a = 95.094（2）, β = 96.936（2）, γ = 116.844（2）°, V = 664.66（5） A3. The structure of 1 consists of [B14O20（OH）6]4- moiety, which could be regarded as the largest isolated polyborate anion so far. The anions are interlinked via hydrogen bonding to form a 3D supramolecular network, whereas the diprotonated [H2EG]2＋ are filled in the free space of inorganic borate network and interact with the inorganic framework by extensive hydrogen bonds. It is noteworthy that the EG acts not only as a solvent, but also as a template.

关 键 词：BORON solvothermal synthesis supramolecular network hydrogen bonds 

分 类 号：O621.2[理学—有机化学]