title: Structure refinement and photocatalytic properties of porous POMCPs by selecting the isomerous PYTTZ.
abstract: Two polyoxometalate-based coordination polymers (POMCPs) constructed form Keggin POMs and Ag(+) with pyttz were synthesized: [Ag4(H2pyttz-I)(H2pyttz-II)(Hpyttz-II)][HSiW12O40]·4H2O (1) and [Ag4(H2pyttz-II)(Hpyttz-II)2][H2SiW12O40]·3H2O (2) (H2pyttz-I = 3-(pyrid-2-yl)-5-(1H-1,2,4-triazol-3-yl)-1,2,4-triazolyl; H2pyttz-II = 3-(pyrid-4-yl)-5-(1H-1,2,4-triazol-3-yl)-1,2,4-triazolyl). Both compounds have similar building units, similar stick-like units and similar 1D inorganic chains, but finally form the different motifs of tunnels (tunnel A in 1 and tunnel A&B in 2). By careful inspection of the structures of 1 and 2, it is believed that the isomerous pyttz molecules can precisely refine the structure of porous POMCPs without changing the underlying framework, which favors the study of the structure-activity relationship of POMCPs. Furthermore, the results of the photocatalytic activities show that compound 2 exhibits higher photocatalytic activity than that of compound 1, which is consistent with their structural characterization.
authors.affiliation: Key Laboratory of Functional Inorganic Material Chemistry (MOE), P. R. China, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, P. R. China. shajq2002@126.com yanpf@vip.sina.com.
authors.forename: Liang
authors.initials: L
authors.lastname: Li
authors.forename: Jing-Wen
authors.initials: JW
authors.lastname: Sun
authors.forename: Jing-Quan
authors.initials: JQ
authors.lastname: Sha
authors.forename: Guang-Ming
authors.initials: GM
authors.lastname: Li
authors.forename: Peng-Fei
authors.initials: PF
authors.lastname: Yan
authors.forename: Cheng
authors.initials: C
authors.lastname: Wang
authors.forename: Lian
authors.initials: L
authors.lastname: Yu
mesh_terms: D002384:Catalysis; D056831:Coordination Complexes / Q000737:chemistry* / Q000528:radiation effects; D015394:Molecular Structure; D016062:Porosity; D033362:Powder Diffraction; D012235:Rhodamines / Q000737:chemistry; D012834:Silver / Q000737:chemistry* / Q000528:radiation effects; D017550:Spectroscopy, Fourier Transform Infrared; D017973:Tungsten Compounds / Q000737:chemistry* / Q000528:radiation effects; D014466:Ultraviolet Rays; D014874:Water Pollutants, Chemical / Q000737:chemistry; D014961:X-Ray Diffraction; D000099294:Polyoxometalates
chemical_list: D056831:Coordination Complexes; D012235:Rhodamines; D012834:Silver; D017973:Tungsten Compounds; D014874:Water Pollutants, Chemical; C102296:polyoxometalate I; D000099294:Polyoxometalates; C029773:rhodamine B