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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Zhao, Dan Tian, Aixiang Ying, Jun Wang, Xiuli |
| Description | Author Affiliation: Wang X ( Department of Chemistry, Bohai University, Jinzhou, 121000, P. R. China. wangxiuli@bhu.edu.cn.) |
| Abstract | Three silver-bis(triazole) three-dimensional (3D) metal–organic frameworks (MOFs) with Wells–Dawson type polyoxometalates (POMs) as high-connected inorganic ligands have been isolated: $[Ag_{7}(bte)_{4}(H_{2}O)(HP_{2}W^{VI}_{16}W^{V}_{2}O_{62})]·2H_{2}O$ (1), $[Ag_{7}(btp)_{5}(HP_{2}W^{VI}_{16}W^{V}_{2}O_{62})]·H_{2}O$ (2) and $[Ag_{4}(btb)_{3.5}(P_{2}W_{18}O_{62})](H_{2}btb)·2H_{2}O$ (3) (bte = 1,2-bis(1,2,4-triazol-1-yl)ethane, btp = 1,3-bis(1,2,4-triazol-1-y1)propane, btb = 1,4-bis(1,2,4-triazol-1-y1)butane). Compound 1 contains a 3D metal–organic subunit, which is constructed from 1D Ag/bte chains and 2D layers based on hexanuclear $[Ag_{6}(bte)_{2}]^{6+}$ circuits. The $[P_{2}W_{18}O_{62}]^{8−}$ $(P_{2}W_{18})$ anions act as 10-dentate inorganic ligands incorporated into the channels of the 3D framework. In compound 2, the metal–organic subunits are a 2D layer constructed from the $[Ag_{5}(btp)_{2}]^{5+}$ circuits and flexible Ag/btp helical chains. The $P_{2}W_{18}$ anions also act as 10-dentate inorganic ligands linking adjacent 2D layers to construct a 3D framework. Both 1 and 2 contain Ag–Ag bonds, which further stabilize the structures. Compared with 1 and 2, the metal–organic subunit of 3 is a 3D cage-like host architecture. Without the assistance of Ag–Ag bonds, two sets of these 3D MOFs interpenetrate each other to generate a 2-fold interpenetrating structure for stability, which are united by the 5-dentate $P_{2}W_{18}$ anions to construct an integrated 3D structure. The roles of coordination modes of silver centers and POMs, as well as the effects of organic ligand lengths on the metal–organic subunit and final structures, have been reported. In addition, the electrochemical properties, photochemical catalysis and antibacterial properties of title compounds have also been investigated. |
| ISSN | 14779226 |
| Issue Number | 13 |
| Journal | Dalton Trans. |
| Volume Number | 43 |
| e-ISSN | 13645447 |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Publisher Date | 2014-04-07 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | Subscribed |
| Subject Keyword | Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Inorganic Chemistry |
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