Two- to One-Dimensional: Radii-Dependent Self-Assembly Crystal Structures and Luminescent Properties of Lanthanide Coordination Polymers with an Amide Type Semirigid Bridging Ligand

2011 ◽  
Vol 11 (9) ◽  
pp. 4205-4212 ◽  
Author(s):  
Xuhuan Yan ◽  
Yafei Li ◽  
Qiong Wang ◽  
Xiaoguang Huang ◽  
Ye Zhang ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Coordination Polymers ◽  
Self Assembly ◽  
Luminescent Properties ◽  
One Dimensional ◽  
Lanthanide Coordination Polymers ◽  
Bridging Ligand

One-dimensional coordination polymers generated from a new triazole bridging ligand and HgX2(X= Cl, Br and I): characterization and luminescent properties

2012 ◽  
Vol 68 (6) ◽  
pp. m147-m151 ◽  
Author(s):  
Na Qin ◽  
Chao-Wei Zhao ◽  
Jian-Ping Ma ◽  
Qi-Kui Liu ◽  
Yu-Bin Dong
Keyword(s):  
Coordination Polymers ◽  
Three Dimensional ◽  
Luminescent Properties ◽  
Coordination Complexes ◽  
The Other ◽  
Tridentate Ligand ◽  
Dimensional Structure ◽  
One Dimensional ◽  
Bridging Ligand ◽  
Solvent Molecules

The new 4-amino-1,2,4-triazole asymmetric bridging ligand 4-amino-5-(pyridin-3-yl)-3-[4-(pyridin-4-yl)phenyl]-4H-1,2,4-triazole (L) has been used to generate three novel isomorphic one-dimensional coordination polymers,viz. catena-poly[[tris[dichloridomercury(II)]-bis{μ3-4-amino-5-(pyridin-3-yl)-3-[4-(pyridin-4-yl)phenyl]-4H-1,2,4-triazole}] acetonitrile monosolvate], {[Hg3Cl6(C18H14N6)2]·CH3CN}n, (I), and the bromido, {[Hg3Br6(C18H14N6)2]·CH3CN}n, (II), and iodido, {[Hg3I6(C18H14N6)2]·CH3CN}n, (III), analogs. The asymmetric ligand acts as a tridentate ligand to coordinate the three different HgIIcenters (two of which are symmetry-related). Two ligands and two symmetry-related HgIIcenters form centrosymmetric rectangular units which are linked into one-dimensional chainsviathe other unique Hg atoms, which sit on mirror planes. The chains are elaborated into a three-dimensional structureviainterchain hydrogen bonds. The acetonitrile solvent molecules are located in ellipsoidal cavities. The luminescent character of these three coordination complexes was investigated in the solid state.

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