title: Self-assembly of organic-inorganic hybrid materials constructed from eight-connected coordination polymer hosts with nanotube channels and polyoxometalate guests as templates.
abstract: Two polyoxometalate-templated organic-inorganic hybrid porous frameworks, namely, [Cu2(H2O)2(bpp)2Cl][PM12O40].approximately 20H2O (for 1, M = W; for 2, M = Mo; bpp = 1,3-bis(4-pyridyl)propane), were self-assembly obtained and structurally determined by elemental analyses, inductively coupled plasma analyses, infrared spectroscopy, and single-crystal X-ray diffraction analyses. Single-crystal X-ray analysis of these crystals revealed that both of the structures are constructed from eight-connected three-dimensional coordination polymer hosts [Cu2(H2O)2(bpp)2Cl]n(3n+) and ball-shaped Keggin-type guests [PM12O40]n(3n-) as templates. The polymer hosts resulted from a bcc-type framework with nanotubes, and the nanotubes can be regarded as a tetra-stranded helix structure. Furthermore, compounds 1 and 2 exhibit photoluminescent properties at ambient temperature, and the compound 2 bulk-modified carbon paste electrode ( 2-CPE) displays good electrocatalytic activity toward the reduction of nitrite.
authors.affiliation: Faculty of Chemistry and Chemical Engineering, Bohai University, Jinzhou 121000, PR China. wangxiuli@bhu.edu.cn
authors.forename: Xiuli
authors.initials: X
authors.lastname: Wang
authors.forename: Yanfeng
authors.initials: Y
authors.lastname: Bi
authors.forename: Baokuan
authors.initials: B
authors.lastname: Chen
authors.forename: Hongyan
authors.initials: H
authors.lastname: Lin
authors.forename: Guocheng
authors.initials: G
authors.lastname: Liu