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[(UO 2 )(C 10 H 8 N 2 O 2 ) 2 ][HPW 12 O 40 ]: The First Case of a Uranyl Coordination Network Containing a Keggin‐Type Polyoxometalate
Author(s) -
Zhang Chi,
Guo Fengwan,
Dai Yong,
Zhang Yu,
Feng Jing,
Wang Nan,
Wang Juan
Publication year - 2020
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.202000877
Subject(s) - uranyl , chemistry , cationic polymerization , phosphotungstic acid , crystallography , keggin structure , covalent bond , ligand (biochemistry) , hydrogen bond , polyoxometalate , inorganic chemistry , ion , molecule , catalysis , polymer chemistry , organic chemistry , biochemistry , receptor
A uranyl compound [(UO 2 )(C 10 H 8 N 2 O 2 ) 2 ][HPW 12 O 40 ] has been hydrothermally synthesized (150 °C for 72 h) in the presence of typical Keggin‐phosphotungstic acid. This compound exhibits a regular layered structure which is composed of [UO 2 ] 2+ and bridging ligand 4,4'‐bipyridine‐ N ‐dioxide (4,4'‐BPDO). The nanosized cavities are occupied by Keggin‐anions [HPW 12 O 40 ] 2– through covalent bonds and hydrogen bonds, in order to hold the charge equilibrium and enhance the stability of the structure. The adsorption properties of this compound have been primarily investigated. The results indicate that the incorporation of Keggin‐anions plays an important role in the fast capture of cationic dye MB + . Compound 1 is the first case of uranyl coordination network decorated by POMs, which evidently provides a feasible strategy for controlling the structural connectivity and functionality of uranyl organic framework.