Chemical Research in Chinese Universities ›› 2024, Vol. 40 ›› Issue (4): 747-752.doi: 10.1007/s40242-024-4130-5

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[H2dab][GaB5O10]: an Acentric Galloborate with a 4-Connected Uninodal Framework

LIU Wenfang, CHEN Chongan, YANG Guoyu   

  1. School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, P. R. China
  • Received:2024-05-21 Online:2024-08-01 Published:2024-07-24
  • Contact: YANG Guoyu,ygy@bit.edu.cn E-mail:ygy@bit.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (Nos. 21831001, 21571016, 91122028) and the National Natural Science Foundation of China for Distinguished Young Scholars (No. 20725101).

Abstract: A new acentric galloborate (GBO) [H2dab][GaB5O10] (1, 1,4-dab: 1,4-diaminobutane) has been synthesized under solvothermal conditions. The alternation of 4,4-connected GaO4 and B5O10 cluster build up the 3D [GaB5O10]n2n uninodal framework, which contains three pairs of helical channels with 8-member ring (MR) and 7-MR apertures, respectively. Compound 1 exhibits a moderate second harmonic generation (SHG) response of 1.8 times that of KH2PO4 (KDP), indicating its potential application in UV regions. The acentric uninodal framework in compound 1 represents a new type of zeolitic framework in the GBOs’ family.

Key words: Galloborate, Solvothermal synthesis, Nonlinear optics, Zeolitic framework