Spacers-directed structural diversity of Co(II)/Zn(II) complexes based on S-/O-bridged dipyridylamides: electrochemical, fluorescent recognition behavior and photocatalytic properties. Issue 4 (16th February 2018)

• Record Type: Journal Article
• Authors: Liu, Guo-Cheng; Li, Yan; Xiong, Ying; Liu, Xiang-Xiang; Li, Qiao-Min; Zhang, Ju-Wen; Lin, Hong-Yan; Li, Xiao-Wu
• Is Part Of: Journal of coordination chemistry. Volume 71:Issue 4(2018)
• Page Start: 483
• Page End: 501
• Publication Date: 2018-02-16
• Subjects: S-/O-Bridged dipyridylamide -- coordination polymer -- photocatalytic property -- fluorescent recognition behavior; Coordination compounds -- Periodicals; 541.2242
• DOI: 10.1080/00958972.2018.1438606
• Languages: English
• ISSNs: 0095-8972

Abstract

Abstract: To investigate the effect of the spacers of S-/O-bridged dipyridylamides on the structures of Co(II)/Zn(II) complexes, [Co(L 1 )(chda)]·1.5H2 O (CP1 ), [Co(L 2 )(chda)] (CP2 ), [Zn(L 1 )(hip)]·DMA·2H2 O (CP3 ), and [Zn(L 2 )(hip)]·2.8H2 O (CP4 ) [L 1 = N, N′ -bis(pyridine-3-yl)thiophene-2, 5-dicarboxamide, H2 chda = trans -1, 4-cyclohexanedicarboxylic acid, L 2 = N, N′ -bis(pyridine-3-yl)-4, 4′-oxybis(benzoic) dicarboxamide, H2 hi p = 5-hydroxyisophthalic acid, DMA = N, N -dimethylacetamide], have been solvothermally synthesized. X-ray single-crystal diffraction shows thatCP1 is a 2-D 3, 5-connected network based on Co-L 1 linear chains and (Co-chda)2 double chains.CP2 features a 1-D structure derived from 1-D wave-like (Co-chda)2 double chains decorated by terminal L 2 ligands.CP3 andCP4 show wave-like (4, 4) networks constructed by 1-D Zn-L 1 zigzag and Zn-hip zigzag (forCP3 )/linear (forCP4 ) chains. The effect of the spacers of S-/O-bridged dipyridylamides on the structures of the title complexes was discussed. Electrochemical behaviors ofCP1 –CP2 and solid-state luminescent properties ofCP3 –CP4 were studied. The luminescence investigations show thatCP3 andCP4 are recycled fluorescent probes for environmentally relevant Fe 3+ ions. The photocatalytic properties for the degradation of methylene blue (MB) under ultraviolet light irradiation ofCP3 –CP4 and the recyclable materials after fluorescent sensing Fe 3+ ions (namedCP3 @Fe 3+ andCP4 @Fe 3+ ) have also been investigated. Abstract :