Organophosphate functionalized of {Mo_(240)} polyoxomolybdate dodecahedra  

作　　者：Shuang-Xue Wu Yang Yang Chao Qin Yu-Han Hou 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]College of Science,Hainan University,Haikou 570228,China

出　　处：《Tungsten》2023年第2期247-253,共7页钨科技（英文）

基　　金：financially supported by the NSFC of China(Grant Nos.22271023 and 22175033)。

摘　　要：Two organophosphate-functionalized hybrid polyoxomolybdates dodecahedra(NH_(4))_(21)H^(+)59[MoⅤ_(180)Mo^(Ⅵ)60(OH)_(60)O_(620)(C_(6)H_(5)PO_(3))_(20)]·260H_(2)O(1)and(NH_(4))_(21)H^(+)59[Mo^(Ⅴ)180Mo^(Ⅵ)60(OH)_(60)O_(620)(NC_(5)H_(4)PO_(3))_(20)]·260H_(2)O(2)are constructed under hydrothermal conditions.In both structures,20 phenylphosphonic acids or pyridyl-4-phosphonic acids are simultaneously grafted onto the interior of the{Mo_(240)}dodecahedral cage,forming an organic-inorganic polyoxomolybdate hybrids.The introduction of more strongly coordinated phenylphosphonic and pyridyl-4-phosphonic acid within the inner surface of{Mo_(240)}altered the microenvironment within the cage.Both structures exhibit good water and thermal stabilities.Furthermore,crystals 1 and 2 were selected for adsorption of cationic dyes with the same charge and different sizes,which showed significant scavenging effect on the large size of cationic dyes.This study provides a new perspective on the functionalization of polyoxometalate cages.

关 键 词：POLYOXOMETALATES Molecular cage FUNCTIONALIZATION Dye adsorption 

分 类 号：O641.4[理学—物理化学]