1. Syntheses, structures and properties of five copper coordination polymers constructed by the triazole ligand
- Author
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Jing Han, Xiang He, Hong-Mei Guo, Ming-Xing Li, and Jing-Jing Liu
- Subjects
chemistry.chemical_classification ,Photoluminescence ,Chemistry ,Stereochemistry ,Coordination polymer ,Ligand ,Triazole ,chemistry.chemical_element ,Polymer ,Crystal structure ,Copper ,Inorganic Chemistry ,chemistry.chemical_compound ,Crystallography ,Excited state ,Materials Chemistry ,Physical and Theoretical Chemistry - Abstract
Reactions of different metal salts with 4-amino-3,5-bis(3-pyridyl)-1,2,4-triazole (3-abpt) gave rise to five new complexes, namely [Cu4(CN)4(3-abpt)2]n (1), [CuBr(3-abpt)]n (2), [CuI(3-abpt)]n (3), [Cu3I3(3-abpt)]n (4) and [Cu(3-abpt)(SO4)(H2O)]n (5). Compounds 1, 3, 4 and 5 are all 2D structures. Compound 1 is a double-layered polymer with an uncommon 3-nodal 3-connected (103)(102.4)4 network, 3 shows a 2D square layered structure, 4 is also a double-layered polymer with 2-nodal 4-connected (3.4.5.62.7)2(3.42.52.7) network and 5 is a 2D structure which is ultimately stacked with an ABAB repeat pattern. Compound 2 is a 1D coordination polymer which exhibits a ladder-like network. The photoluminescence of 1–2 has also been investigated. The long emission lifetimes of 1–2 could be assigned to metal-to-ligand charge transfer triple excited states [MLCT].
- Published
- 2011