Self-assembly of 1-D, 2-D, and 3-D transition-metal coordination polymers based on a T-shaped tripodal ligand 4-(4,5-dicarboxy-1H-imidazol-2-yl)pyridine 1-oxide

Autor:	Cao Xingxing, Deng-Deng Huang, Qi-Jian Pan, Li-Zhuang Chen
Rok vydání:	2015
Předmět:	chemistry.chemical_classification Stereochemistry Oxide Infrared spectroscopy Crystal structure Polymer chemistry.chemical_compound Crystallography chemistry Transition metal Tripodal ligand Pyridine Materials Chemistry Self-assembly Physical and Theoretical Chemistry
Zdroj:	Journal of Coordination Chemistry. 68:1664-1675
ISSN:	1029-0389 0095-8972
DOI:	10.1080/00958972.2015.1028926
Popis:	Three coordination polymers, {[Co(C10H5N3O5)(H2O)2]·H2O}n (1), {[Mn3(C10H5N3O5)2Cl2(H2O)6]·2H2O}n (2), and {[Cu3(C10H4N3O5)2(H2O)3]·4H2O}n (3), based on a T-shaped tripodal ligand 4-(4,5-dicarboxy-1H-imidazol-2-yl)pyridine 1-oxide (H3DCImPyO), were synthesized under hydrothermal conditions. The polymers showed diverse coordination modes, being characterized by elemental analysis, infrared spectroscopy, and single-crystal X-ray structure analysis. In 1, the HDCImPyO2− generated a 1-D chain by adopting a μ2-kN, O : kN′, O′ coordination mode to bridge two Co(II) ions in two bis-N,O-chelating modes. In 2, the HDCImPyO2− adopted a μ3-kN, O : kO′, O′′ : O′′′ coordination mode to bridge two crystallographically independent Mn(II) ions, forming a 2-D hcb network with {63} topology. In 3, by adopting μ4-kN, O : kO′, O′′ : kN′′, O′′′ : O′′′′ coordination, DCImPyO3− bridged three crystallographically independent Cu(II) ions to form a 3-D framework having the stb topology.
Databáze:	OpenAIRE
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