Publication Date:
2016-09-13
Description:
Three copper(II) coordination polymers (CuCPs), namely, [Cu 0.5 (1,4-bib)(SO 4 ) 0.5 ] n ( 1 ), {[Cu(1,3-bib) 2 (H 2 O)] · SO 4 · H 2 O} n ( 2 ), and [Cu(bpz)(SO 4 ) 0.5 ] n ( 3 ), were assembled from the reaction of three N-donors [1,4-bib = 1,4-bis(1H-imidazol-4-yl)benzene, 1,3-bib = 1,3-bis(1H-imidazol-4-yl)benzene, and Hbpz = 3-(2-pyridyl)pyrazole] with copper sulfate under hydrothermal conditions. Their structures were determined by single-crystal X-ray diffraction analyses and further characterized by elemental analyses (EA), IR spectroscopy, powder X-ray diffraction (PXRD), and thermogravimetric analyses (TGA). Structure analyses reveal that complex 1 is a 3D 6-connected {4 12 · 6 3 }- pcu net, complex 2 is a fourfold 3D 4-connected 6 6 - dia net, whereas complex 3 is a 1D snake-like chain, which further expanded into 3D supramolecular architectures with the help of C–H ··· O hydrogen bonds. Moreover, the photocatalytic tests demonstrate that the obtained CuCPs are photocatalysts in the degradation of MB with the efficiency is 86.4 % for 1 , 75.3 % for 2 , and 91.3 % for 3 after 2 h, respectively.
Print ISSN:
0044-2313
Electronic ISSN:
1521-3749
Topics:
Chemistry and Pharmacology
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