A self-assembled (H2O)20(CH3OH)4 binary cluster containing a grail-shaped hexadecameric water cluster trapped in the cavity of a metal-ligand hybrid |
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| Authors: | GengGeng Luo WeiJun He Li Liu ShengHui Wu DongXu Li ZiJing Xiao JingCao Dai |
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| Institution: | 1. Institute of Materials Physical Chemistry, College of Materials Science & Engineering, Huaqiao University, Xiamen, 361021, China
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| Abstract: | A discrete centrosymmetric (H2O)20(CH3OH)4 binary cluster was confined in the cavity of a metal-ligand hybrid Ag4(bpda)2(bpp)4·14H2O·2CH3OH] n (1) (where bpp = 1,3-bis(4-pyridyl)propane and H2bpda = 2,2??-biphenyldicarboxylic acid). The novel mixed water-methanol cluster consists of one grail-shaped hexadecameric cluster, four dangling water and four hanging methanol molecules. The (H2O)16 cluster is composed of two pairs of edge-sharing (H2O)5 rings attached to one (H2O)4 core with twenty hydrogen bonds. Alternatively, the (H2O)16 cluster is structurally similar to a complicated hydrocarbon generated by undergoing 2+2] cycloaddition of 1,2,3,4,5,6-hexahydropentalene, which reveals the resemblance between water clusters and organic compounds. |
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