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Article Abstract
Crown-ether-like octanuclear polyoxymolybdenum(v) cluster (NH)[MoO(μ-OH)( -O)(dmtrz)]·62.5HO (dmtrz = 3,5-dimethyltriazole, 1) was successfully synthesized by a hydrothermal method. Its lithium additives Li[MoO(μ-OH)(μ-O)(dmtrz)]·2(Hdmtrz)·27HO (2), Li[MoO(μ-OH)(μ-O)(dmtrz)]·20.5HO (3) and Li[MoO(μ-OH)(μ-O)(dmtrz)]·25HO (4) have also been obtained and fully characterized respectively. The lithium cations are in the forms of mononuclear, dinuclear and tetranuclear units. X-ray structural analyses show that polyoxometalate-based materials 1-4 constitute round pores formed by eight molybdenum-oxygen groups connected sequentially with sizes of 4.6 Å. With 1 as the basic framework, 2-4 combine lithium cations in the forms of different hydrates, respectively. In addition, 1 stacked up intermolecularly with pores of sizes 10.0 × 18.0 Å, while 4 stacked up inter-molecularly with 6.0 × 4.0 Å in the axis and 8.0 × 5.8 Å in the axis, respectively. The results show that 1 can selectively adsorb CO and O, respectively.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12377193 | PMC |
| http://dx.doi.org/10.1039/d5ra03010b | DOI Listing |
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