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Synthesis, structures and thermal stabilities of five copper(II) coordination polymers based on 2,4,6-tris(pyridyl)-1,3,5-triazine and 1,2,4,5-benzenetetracarboxylate ligands
- Source :
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Inorganica Chimica Acta . Jan2010, Vol. 363 Issue 1, p8-14. 7p. - Publication Year :
- 2010
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Abstract
- Abstract: Hydrothermal reactions of Cu(II) salts with 2,4,6-tris(3/4-pyridyl)-1,3,5-triazine (3/4-tpt) and 1,2,4,5-benzenetetracarboxylic acid (H4btec) afforded five novel coordination polymers, namely [Cu4(3-tpt)2(btec)2(H2O)4] n ·6nH2O (1), [Cu(3-tpt)2(H2btec)] n (2), [Cu3(3-Htpt)2(H2btec)2(btec)] n ·4nH2O (3), [Cu2(4-tpt)3(H2btec)2] n ·4nH2O (4), and [Cu3(4-tpt)2(Hbtec)2(H2O)] n ·3nH2O (5). These complexes exhibit various polymeric networks due to diverse coordination modes of tpt and H4btec. Complex 1 displays a 3-D metal–organic framework in which 3-tpt is an exo-tridentate ligand and μ4-btec4− coordinates to two square-pyramidal Cu(II) and two square Cu(II) ions. Complex 2 is a 1-D chain coordination polymer which contains μ2-H2btec2− bridge and monodentate 3-tpt. Complex 3 shows a 3-D metal–organic framework constructed from protonated bidentate 3-Htpt+, tridentate H2btec2− and tetradentate btec4−. Complex 4 is a 1-D ladder-like coordination polymer assembled by μ2-H2btec2−, mono- and bidentate 4-tpt. Complex 5 exhibits a porous 3-D metal–organic framework constructing from tridentate 4-tpt and μ3-Hbtec3−. Their thermal stabilities were also investigated. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00201693
- Volume :
- 363
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Inorganica Chimica Acta
- Publication Type :
- Academic Journal
- Accession number :
- 45556368
- Full Text :
- https://doi.org/10.1016/j.ica.2009.10.011