Assembly, structures, photophysical properties and photocatalytic activities of a series of coordination polymers constructed from semi-rigid bis-pyridyl-bis-amide and benzenetricarboxylic acid

作者：Wang Xiuli^*; Le Mao; Lin Hong Yan; Luan Jian; Liu Guo Cheng; Sui Fang Fang; Chang Zhi Han

来源：Inorganic Chemistry Frontiers, 2015, 2(4): 373-387.

DOI：10.1039/c4qi00218k

A series of new metal(II)-organic coordination polymers, namely [Co(3-DPNA)(1,3,5-HBTC)]center dot 2H(2)O (1), [Ni(3-DPNA)(1.5)(1,3,5-HBTC)(H2O)(2)] (2), [Cu(3-DPNA)(1,3,5-HBTC)]center dot H2O (3), [Zn(3-DPNA)(1,3,5-HBTC)]center dot 2H(2)O (4), [Cd(3-DPNA)(1,3,5-HBTC)(H2O)]center dot 2H(2)O (5), [Co(4-DPNA)(1,3,5-HBTC)]center dot 4H(2)O (6), [Ni(4-DPNA)(1,3,5-BTC)(2/3)] (7), [Cu(4-DPNA)(1,3,5-BTC)(2/3)] (8), [Zn(4-HDPNA)(1,3,5-BTC)] (9), [Cd(4-DPNA)(1,3,5-BTC)(1/3)Cl] (10), have been purposefully synthesized under hydrothermal conditions [N-1,N-4-di(pyridin-3-yl)naphthalene-1,4-dicarboxamide (3-DPNA) and N-1,N-4-di(pyridin-4-yl)naphthalene-1,4-dicarboxamide (4-DPNA), 1,3,5-H3BTC = 1,3,5-benzenetricarboxylic acid]. Complexes 1 and 4 exhibit similar 1D belt-like chains constructed from 1D left- and right-hand [Co-(3-DPNA)](n) helical chains and [Co-(1,3,5-HBTC)](n) linear chains. Complex 2 furnishes a 1D [Ni-(3-DPNA)(1.5])n "loop + line" chain with 1,3,5-HBTC anions hanging on both sides. Complex 3 features a 2D sql network based on [Cu-(3-DPNA)](n) meso-helical chains and [Cu-(1,3,5-HBTC)](n) linear chains. Complex 5 shows a 1D ladder-like chain constructed from [Cd-1,3,5-HBTC](n) linear chains and [Cd-2(3-DPNA)(2)] loops. Complex 6 displays a 2D double sheet containing (H2O)(8) clusters. Complexes 7 and 8 possess similar 3D (3,4)-connected frameworks with the (6(3))(2)(6(4).8.10)(3) topology containing a dodecagon-shape cavity and a hexagonal cavity, respectively. Complex 9 shows a 2D network, in which one pyridine nitrogen atom of 4-DPNA was protonated. Complex 10 is a 3D (3,5)-connected framework with (3.4(4).6(3).8(2))(3)(6(3)) topology. All the 1D chains and 2D networks are further extended into 2D supramolecular sheets or 3D supramolecular frameworks through hydrogen-bonding interactions. The influence of metal(II) ions and N-donor ligands on the structures of the title compounds was investigated. The results suggest that the central metals with various coordination nature and the semi-rigid bis-pyridyl-bis-amide ligands with different coordination sites show a great effect on the structures of the title compounds. In addition, the fluorescence sensing properties of 4, 5, 9, and 10 and the photocatalytic activities of complexes 1-10 have been investigated in detail, and the results show that 5 possesses good fluorescence selectivity for different solvent molecules.

• 出版日期2015
• 单位渤海大学