By changing the solvents, three polyoxometalate（POM）-based supramolecular hybrids, [Co2 L3][SiW（12）O（40）]·17 H2 O（1）,[Co2 L2（H2 O）4][SiW（12）O（40）].2 EtOH·2 H2 O（2） and [Co2 L3][SiW（12）O（40...By changing the solvents, three polyoxometalate（POM）-based supramolecular hybrids, [Co2 L3][SiW（12）O（40）]·17 H2 O（1）,[Co2 L2（H2 O）4][SiW（12）O（40）].2 EtOH·2 H2 O（2） and [Co2 L3][SiW（12）O（40）]·9 DMA·6 H2 O（3）, have been synthesized under hydrothermal or solvothermal conditions. All three hybrids show various supramolecular structures, which contain two kinds of different metal-organic motifs. A kind of metal-organic cationic cage [Co2 L3]^4＋ is formed in the presence of H2 O for 1, DMA/H2 O for 3, and a metalorganic cationic circle [Co2 L2]^（4＋） is constructed in the presence of EtOH/H2 O for 2. That is to say, the solvents show a key role in tuning the architectures of metal-organic fragments and the final POM-based supramolecular structures. The adsorption properties of 1-3 for different organic dyes have also been investigated.展开更多
A {NIT] cluster-substituted sandwich-type phosphotungstate Na10（NH4）4[{（B-a-PW9034）Ni3 （OH）（H20）2（HAle））2Ni].22H20 （1） was synthesized using the conventional aqueous solution method. Compound 1 represents...A {NIT] cluster-substituted sandwich-type phosphotungstate Na10（NH4）4[{（B-a-PW9034）Ni3 （OH）（H20）2（HAle））2Ni].22H20 （1） was synthesized using the conventional aqueous solution method. Compound 1 represents the first nickel-containing sandwich-type polyoxometalate functionalized by bisphosphonate ligands. Further, the sandwich-type polyoxoanions aggregated via the H-bonding interactions into a two-dimensional （2D） suoramolecular framewnrk.展开更多
基金financially supported by the National Natural Science Foundation of China(Nos. 21671025, 21471021, 21501013,21401010)Program for Distinguished Professor of Liaoning Province(No. 2015399)
文摘By changing the solvents, three polyoxometalate（POM）-based supramolecular hybrids, [Co2 L3][SiW（12）O（40）]·17 H2 O（1）,[Co2 L2（H2 O）4][SiW（12）O（40）].2 EtOH·2 H2 O（2） and [Co2 L3][SiW（12）O（40）]·9 DMA·6 H2 O（3）, have been synthesized under hydrothermal or solvothermal conditions. All three hybrids show various supramolecular structures, which contain two kinds of different metal-organic motifs. A kind of metal-organic cationic cage [Co2 L3]^4＋ is formed in the presence of H2 O for 1, DMA/H2 O for 3, and a metalorganic cationic circle [Co2 L2]^（4＋） is constructed in the presence of EtOH/H2 O for 2. That is to say, the solvents show a key role in tuning the architectures of metal-organic fragments and the final POM-based supramolecular structures. The adsorption properties of 1-3 for different organic dyes have also been investigated.
基金supported by the National Natural Science Foundation of China(No.21101022)Fundamental Research Funds for the Central Universities(No.10QNJJ009)
文摘A {NIT] cluster-substituted sandwich-type phosphotungstate Na10（NH4）4[{（B-a-PW9034）Ni3 （OH）（H20）2（HAle））2Ni].22H20 （1） was synthesized using the conventional aqueous solution method. Compound 1 represents the first nickel-containing sandwich-type polyoxometalate functionalized by bisphosphonate ligands. Further, the sandwich-type polyoxoanions aggregated via the H-bonding interactions into a two-dimensional （2D） suoramolecular framewnrk.
