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Cobalt(II)‐Terephthalate Frameworks Containing Bis(benzimidazole) Derivative Co‐ligands: Syntheses, Crystal Structures, Catalytic and Fluorescence Properties
Author(s) -
Xiao ShuLin,
Qin Li,
Ma PeiJuan,
Cui GuangHua
Publication year - 2013
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201300211
Subject(s) - imidazole , cobalt , infrared spectroscopy , benzimidazole , thermogravimetric analysis , catalysis , crystallography , metal ions in aqueous solution , fluorescence , crystal structure , chemistry , powder diffraction , benzene , metal , stereochemistry , inorganic chemistry , organic chemistry , physics , quantum mechanics
Two metal‐organic coordination polymers of Co II with the molecular formulae [Co(L 1 )(tp)(H 2 O) 2 ] n ( 1 ) and [Co(L 2 )(tp) · H 2 O] n ( 2 ) [L 1 = 1, 4‐bis(benzimidazole‐1‐ylmethyl)‐ benzene; L 2 = 1, 1‐(1, 4‐butanediyl)bis(5, 6‐dimethylbenzimidazole); tp = terephthalate] were synthesized and characterized by single‐crystal X‐ray diffraction studies, infrared spectroscopy (IR), thermogravimetric analysis (TGA), X‐ray powder diffraction (XRPD), and elemental analysis. The structure determination of complex 1 reveals a 2D layer with (4, 4) topology, with Co II ions at the nodes connected through tp and L 1 co‐ligands. Complex 2 is the first example of a four‐connected SrAl 2 structure type ( sra , 4 2 6 3 8 topology) with threefold interpenetration in Co II coordination frameworks, forming by bridging L 2 and tp co‐ligands. In addition, the fluorescence and catalytic performances of the complexes for the degradation of methyl orange were investigated.