Two polyoxovanadoborates with over 100 nuclei assembled from a {V_(14)Co_(12)B_(72)} cluster  

作　　者：Shuang-Xue Wu Yu-Jiao Dong Yang Yang Chao Qin Chun-Yi Sun Wei Guan Xin-Long Wang Zhong-Min Su 

机构地区：[1]Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education,Northeast Normal University,Changchun 130024,China [2]School of Chemistry and Environmental Engineering,Changchun University of Science and Technology,Changchun 130013,China [3]Key Laboratory of Advanced Materials of Tropical Island Resources,Hainan University,Haikou 570228,China

出　　处：《Science China Chemistry》2024年第8期2578-2585,共8页中国科学（化学英文版）

基　　金：financially supported by the National Natural Science Foundation of China (22371032 and 22271023)。

摘　　要：Combining theoretical prediction and experimental exploration, the first sandwich-type polyoxovanadoborate(POVB) with an odd number of nuclei, [V_(11)B_(26)O_(73)(OH)_(10)]^(8-)(1), was discovered under hydrothermal conditions. Density-functional theory(DFT)gives a rationalization for the existence of this structure and the structural feature is consistent with the {V_NB_(2N+X)}(X = 2, 4, 6, 8)general formula. Excitingly, when Co and 1,10-phenanthroline(phen) are introduced into the synthesis of vanadoborates system,a 100-nuclei [Co_6(phen)_(10)(H_(2)O)_8][V_(14)Co_(12)B_(72)O_(144)(OH)_(20)]·28H_(2)O(2) and a 102-nuclei [Co_6(phen)_(14)(H_(2)O)_(4)][V_(14)Co_(12)B_(72)O_(144)(OH)_(20)]·23H_(2)O(3) with the same core structure of [V_(14)Co_(12)B_(72)]^(12-)are obtained. The vase-shaped [V_(14)Co_(12)B_(72)] polyanion is a multilayered sandwich-type structure containing seven distinct structural layers and is the largest known POVB. Furthermore, 2demonstrates exceptional thermal and chemical stability and serves as an efficient and stable catalyst for the photoreduction of carbon dioxide.

关 键 词：boronate metallic materials polyoxovanadoborates density functional theory PHOTOCATALYSIS CO_(2)reduction 

分 类 号：TQ128.54[化学工程—无机化工] O643.36[理学—物理化学] O644.1[理学—化学]