Bin Hu, Yuehui Wang, Huifen Qian
Feb 26, 2016
Citations
0
Influential Citations
3
Citations
Journal
Polyhedron
Abstract
A pair of isomeric compounds, namely L1-Et [2-(5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)acetate ethyl ester] and L3-Et [2-(5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)acetate ethyl ester], has been synthesized in this work, and they are used as multi-dentate ligands to react with certain transition-metal ions under solvothermal conditions. As a result, two three-dimensional (3D) coordination polymers, i.e. {[Zn(L1)(H 2 O)]ClO 4 ·2H 2 O·0.5MeOH} n ( C1 ) and {[Ni(L2) 2 ](ClO 4 ) 2 ·2H 2 O} n ( C3 ), have been yielded and structurally characterized, where ligand L2 is found to be the decomposition product of ligand L3-Et. It is noted that a novel tetranuclear Zn 4 (L1) 4 based cluster-organic framework is constructed in the case of C1 exhibiting a three-dimensional (3D) 2-fold interpenetrating diamond structure. By comparing the structures of C1 and C3 , it is concluded that the competition between metal-ion complexation and ligand decomposition leads to the formation of different coordination polymers.