A New Coordination Polymer of Zn(II)-btc (H3btc = Benzene-1,3,5-tricarboxylic acid) with Protonated Acridine: Synthesis, Crystal Structure and Spectroscopic Properties

2012 ◽  
Vol 42 (10) ◽  
pp. 1007-1013 ◽  
Author(s):  
Wenbo Pei ◽  
Zhangang Han ◽  
Jingli Xie ◽  
Yang Zou ◽  
Xiao-Ming Ren
Keyword(s):  
Crystal Structure ◽  
Coordination Polymer ◽  
Spectroscopic Properties ◽  
Tricarboxylic Acid

A new two-dimensional CdIIcoordination polymer based on 2-(1H-imidazol-1-ylmethyl)-6-methyl-1H-benzimidazole and benzene-1,2-dicarboxylate: synthesis, crystal structure and characterization

2017 ◽  
Vol 73 (10) ◽  
pp. 828-832 ◽  
Author(s):  
Huai-Xia Yang ◽  
Yan-Qiu Yang ◽  
Di Cheng ◽  
Ya-Xue Li ◽  
Xiang-Ru Meng
Keyword(s):  
Crystal Structure ◽  
Coordination Polymer ◽  
Hydrogen Bonds ◽  
Water Molecule ◽  
Spectroscopic Properties ◽  
Organic Ligands ◽  
Two Dimensional ◽  
Coordination Environment ◽  
Dimensional Network ◽  
Ir Spectroscopic

In the construction of coordination polymers, many factors can influence the formation of the final architectures, such as the nature of the metal centres, the organic ligands and the counter-anions. In the coordination polymer poly[aqua(μ-benzene-1,2-dicarboxylato-κ4O1,O1′:O2,O2′)[μ-2-(1H-imidazol-1-ylmethyl)-6-methyl-1H-benzimidazole-κ2N2:N3]cadmium(II)], [Cd(C12H12N4)(C8H4O4)(H2O)]nor [Cd(immb)(1,2-bdic)(H2O)]n, each CdIIion is seven-coordinated by two N atoms from two symmetry-related 2-(1H-imidazol-1-ylmethyl)-6-methyl-1H-benzimidazole (immb) ligands, by four O atoms from two symmetry-related benzene-1,2-dicarboxylate (1,2-bdic2−) ligands and by one water molecule, leading to a CdN2O5distorted pentagonal bipyramidal coordination environment. The immb and 1,2-bdic2−ligands bridge CdIIions and form a two-dimensional network structure. O—H...O and N—H...O hydrogen bonds stabilize the structure. In addition, the IR spectroscopic properties, PXRD patterns, thermogravimetric behaviour and fluorescence properties of the title polymer have been investigated.

scholarly journals Crystal structure of [NaZn(BTC)(H2O)4]·1.5H2O (BTC = benzene-1,3,5-tricarboxylate): a heterometallic coordination compound

2015 ◽  
Vol 71 (7) ◽  
pp. m143-m144 ◽  
Author(s):  
Min Ni ◽  
Quanle Li ◽  
Hao Chen ◽  
Shengqing Li
Keyword(s):  
Crystal Structure ◽  
Ionic Liquid ◽  
Coordination Polymer ◽  
Hydrogen Bonds ◽  
Tricarboxylic Acid ◽  
The Other ◽  
Water Molecules ◽  
Asymmetric Unit ◽  
Solvent Water ◽  
Bridging Ligand

The title coordination polymer, poly[[μ-aqua-triaqua(μ3-benzene-1,3,5-tricarboxylato)sodiumzinc] sesquihydrate], {[NaZn(C9H3O6)(H2O)4]·1.5H2O}n, was obtained in ionic liquid microemulsion at room temperture by the reaction of benzene-1,3,5-tricarboxylic acid (H3BTC) with Zn(NO3)2·6H2O in the presence of NaOH. The asymmetric unit comprises two Na+ions (each located on an inversion centre), one Zn2+ion, one BTC ligand, four coordinating water molecules and two solvent water molecules, one of which is disordered about an inversion centre and shows half-occupation. The Zn2+cation is five-coordinated by two carboxylate O atoms from two different BTC ligands and three coordinating H2O molecules; the Zn—O bond lengths are in the range 1.975 (2)–2.058 (3) Å. The Na+cations are six-coordinated but have different arrangements of the ligands: one is bound to two carboxylate O atoms of two BTC ligands and four O atoms from four coordinating H2O molecules while the other is bound by four carboxylate O atoms from four BTC linkers and two O atoms of coordinating H2O molecules. The completely deprotonated BTC ligand acts as a bridging ligand binding the Zn2+atom and Na+ions, forming a layered structure extending parallel to (100). An intricate network of O—H...O hydrogen bonds is present within and between the layers.

Synthesis, Crystal Structure and Properties of a New Lanthanide Pyridine-2,4,6-tricarboxylato Coordination Polymer

2011 ◽  
Vol 66 (6) ◽  
pp. 570-576
Author(s):  
Jian-Li Lin ◽  
Wei Xu ◽  
Li Zhao ◽  
Yue-Qing Zheng
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Coordination Polymer ◽  
Visible Region ◽  
Tricarboxylic Acid ◽  
Structure And Properties ◽  
Temperature Dependent ◽  
Coordination Modes ◽  
Temperature Range ◽  
Trigonal Prismatic

A new lanthanide pyridine-2,4,6-tricarboxylato coordination polymer, [Dy2(H2O)5(ptc)2]·H2O (H3ptc = pyridine-2,4,6-tricarboxylic acid), was hydrothermally synthesized. The complex exhibits both mono-capped square antiprismatic DyNO8 chromophores and 4,4ʹ-bicapped trigonal prismatic DyNO7 chromophores, which are interconnected through ptc3− anions in μ3η6 and μ4η6 coordination modes to achieve a new 3D MOF of an unprecedented topology of (4 · 63 · 82)(63) type. This Dy(III) complex exhibits a characteristic luminescence in the visible region upon excitation at 300 nm. The temperature-dependent magnetic properties of the Dy(III) complex were investigated in the temperature range of 2 - 300 K.

scholarly journals Poly[[pentaaqua(μ4-pyridine-2,4,6-tricarboxylato)(μ3-pyridine-2,4,6-tricarboxylato)diterbium(III)] monohydrate]

2012 ◽  
Vol 68 (8) ◽  
pp. m1133-m1134 ◽  
Author(s):  
Xiao-Ke Yu ◽  
Hong-Lin Zhu
Keyword(s):  
Crystal Structure ◽  
Rare Earth ◽  
Coordination Polymer ◽  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Tricarboxylic Acid ◽  
The Other ◽  
Coordination Modes ◽  
Trigonal Prismatic

The three-dimensional title coordination polymer, {[Tb2(C8H2NO6)2(H2O)5]·H2O}n, was hydrothermally synthesized by reacting the corresponding rare-earth salt with pyridine-2,4,6-tricarboxylic acid (H3ptc). There are two independent TbIIIatoms in the structure, one of which is nine-coordinated, forming a monocapped NO8square-antiprism and the other is eight-coordinated exhibiting a 4,4-bicapped NO7trigonal–prismatic environment. The complex units are interconnected through the ptc3−anions acting in different coordination modes, resulting in a three-dimensional coordination polymer. The crystal structure features extensive O—H...O hydrogen bonds.

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