Assembly, structures, photophysical properties and photocatalytic activities of a series of coordination polymers constructed from semi-rigid bis-pyridyl-bis-amide and benzenetricarboxylic acid. Issue 4 (13th February 2015)

• Record Type: Journal Article
• Authors: Wang, Xiuli; Le, Mao; Lin, Hong-Yan; Luan, Jian; Liu, Guo-Cheng; Sui, Fang-Fang; Chang, Zhi-Han
• Is Part Of: Inorganic chemistry frontiers. Volume 2:Issue 4(2015)
• Page Start: 373
• Page End: 387
• Publication Date: 2015-02-13
• Subjects: Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c4qi00218k
• Languages: English
• ISSNs: 2052-1553

Abstract

Abstract : Ten metal–organic coordination polymers1–10 based on semi-rigid bis-pyridyl-bis-amide ligands have been synthesized. The fluorescence sensing and photocatalytic properties of1–10 have been investigated. Abstract : A series of new metal(ii )–organic coordination polymers, namely [Co(3-DPNA)(1, 3, 5-HBTC)]·2H2 O (1 ), [Ni(3-DPNA)1.5 (1, 3, 5-HBTC)(H2 O)2 ] (2 ), [Cu(3-DPNA)(1, 3, 5-HBTC)]·H2 O (3 ), [Zn(3-DPNA)(1, 3, 5-HBTC)]·2H2 O (4 ), [Cd(3-DPNA)(1, 3, 5-HBTC)(H2 O)]·2H2 O (5 ), [Co(4-DPNA)(1, 3, 5-HBTC)]·4H2 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-H3 BTC = 1, 3, 5-benzenetricarboxylic acid]. Complexes1 and4 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. Complex2 furnishes a 1D [Ni-(3-DPNA)1.5 ] n "loop + line" chain with 1, 3, 5-HBTC anions hanging on both sides. Complex3 features a 2D sql network based on [Cu-(3-DPNA)] n meso -helical chains and [Cu-(1, 3, 5-HBTC)] n linear chains. Complex5 shows a 1D ladder-like chain constructed from [Cd-1, 3, 5-HBTC] n linear chains and [Cd2 (3-DPNA)2 ] loops. Complex6 displays a 2D double sheet containing (H2 O)8 clusters. Complexes7 and8 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. Complex9 shows a 2D network, in which one pyridine nitrogen atom of 4-DPNA was protonated. Complex10 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 of4, 5, 9, and10 and the photocatalytic activities of complexes1–10 have been investigated in detail, and the results show that5 possesses good fluorescence selectivity for different solvent molecules.