A series of two-dimensional coordination polymer crystal materials based on two flexible bis-pyridyl-bis-amide ligands with fluorescent sensing activities and photocatalytic properties

作者：Lu Qi Lin; Luan Jian; Wang Xiu Li^*; Lin Hong Yan; Le Mao; Liu Guo Cheng

来源：Polyhedron, 2014, 83: 108-115.

DOI：10.1016/j.poly.2014.05.024

• Crystal materials
• Flexible bis-pyridyl-bis-amide ligand
• Fluorescent property
• Electrochemical behavior
• Photocatalytic activity

Five new coordination polymer crystal materials based on two flexible bis-pyridyl-bis-amide ligands with different spacer lengths and three kinds of aromatic dicarboxylic acids, namely [Cu(3-dpyh)(0.5)(1,8-NDC)(H2O)] (1), [Cu(3-dpyh)(0.5)(1,4-BDC)(H2O)] (2), [Co(3-dpyh)(1,4-BDC)(H2O)(2)] (3), [Co(3-dpyb)(1,3-BDC)]center dot H2O (4) and [Cd-2(3-dpyb)(2)(1,3-BDC)(2)] (5) [3-dpyh = N,N'-bis(3-pyridinecarboxamide)-1,6-hexane, 3-dpyb = N,N'-bis(3-Pyridinecarboxamide)-1,4-butane, 1,8-H2NDC = 1,8-naphthalenedicarboxylic acid, 1,4-H2BDC = 1,4-benzenedicarboxylic acid and 1,3-H2BDC = 1,3-benzenedicarboxylic acid], have been hydrothermally synthesized and structurally characterized. X-ray diffraction analyses reveal that all the title complexes show 2D structures. Complex 1 presents a 20 network with (3,4)-connected {4(2).6(3).8}{4(2).6} topology. Complexes 2 and 3 display a similar typical 4-connected sql topology with different sizes. Complexes 4 and 5 show similar (3,5)-connected networks with a {4(2).6}{4(2).6(7.)8} topology. Furthermore, the fluorescent, electrochemical and photocatalytic properties of complexes 1-5 have also been investigated. Complex 5 exhibits excellent fluorescent sensing behavior.

• 出版日期2014-11-24
• 单位渤海大学