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Construction and photocatalytic properties of two metal‐mediated coordination polymers based on benzene‐1,3,5‐tricarboxylic acid and trans ‐1‐(pyridin‐3‐yl)‐2‐(pyridin‐4‐yl)ethene
Author(s) -
Chen Jing-Min,
Zhou Qian-Kun,
Hou Yi-Xuan,
Liu Dong
Publication year - 2017
Publication title -
acta crystallographica section c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 17
ISSN - 2053-2296
DOI - 10.1107/s2053229617013444
Subject(s) - benzene , tricarboxylic acid , chemistry , photocatalysis , coordination polymer , catalysis , crystal structure , nuclear chemistry , hydrothermal circulation , biphenyl , medicinal chemistry , crystallography , organic chemistry , citric acid cycle , seismology , enzyme , geology
With the rapid development of modern industry, water pollution has become an intractable environmental issue facing humans worldwide. In particular, the organic dyes discharged into natural water from dyestuffs, dyeing and the textile industry are the main sources of pollution in wastewater. To eliminate these types of pollutants, degradation of organic contaminants through a photocatalytic technique is an effective methodology. To exploit more crystalline photocatalysts for the degradation of organic dyes, two coordination polymers, namely catena ‐poly[[(3,5‐dicarboxybenzene‐1‐carboxylato‐κ O 1 )silver(I)]‐μ‐ trans ‐1‐(pyridin‐3‐yl)‐2‐(pyridin‐4‐yl)ethene‐κ 2 N : N ′], [Ag(C 9 H 5 O 6 )(C 12 H 10 N 2 )] n or [Ag(H 2 BTC)(3,4′‐bpe)] n , (I), and poly[[(μ 3 ‐5‐carboxybenzene‐1,3‐dicarboxylato‐κ 4 O 1 , O 1′ : O 3 : O 3 )[μ‐ trans ‐1‐(pyridin‐3‐yl)‐2‐(pyridin‐4‐yl)ethene‐κ 2 N : N′ ]cadmium(II)] monohydrate], {[Cd(C 9 H 4 O 6 )(C 12 H 10 N 2 )]·H 2 O} n or {[Cd(HBTC)(3,4′‐bpe)]·H 2 O} n , (II), have been prepared by the hydrothermal reactions of benzene‐1,3,5‐tricarboxylic acid (H 3 BTC) and trans ‐1‐(pyridin‐3‐yl)‐2‐(pyridin‐4‐yl)ethene (3,4′‐bpe) in the presence of AgNO 3 or Cd(NO 3 ) 2 ·4H 2 O, respectively. These two title compounds have been structurally characterized by IR spectroscopy, elemental analysis, single‐crystal X‐ray diffraction and powder X‐ray diffraction. In (I), the Ag I ions and organic ligands form a one‐dimensional coordination chain, and adjacent coordination chains are connected by Ag…O interactions to give rise to a two‐dimensional supramolecular network. Each two‐dimensional network is entangled with other equivalent networks to generate an infrequent interlocked 2D→3D (2D and 3D are two‐ and three‐dimensional, respectively) supramolecular framework. In (II), the Cd II ions are bridged by the HBTC 2− and 3,4′‐bpe ligands, which lie across centres of inversion, to give a two‐dimensional coordination network. The thermal stabilities and photocatalytic properties of the title compounds have also been studied.