Publication Date:
2015-12-04
Description:
The coordination polymers [Cu 2 (tpim) 2 ] · 2H 2 O ( 1 ) and [Co(H 2 tpim) 2 (MoO 4 ) 2 ] ( 2 ) [Htpim = 2,4,5-tri(4-pyridyl)-imidazole] were synthesized. Their structures were determined by single-crystal X-ray diffraction and further characterized by elemental analyses, IR spectroscopy, and TG analyses. Compounds 1 and 2 both contain chiral helical-layer structures. Compound 1 exhibits a novel 3D (3,3,4)-connected framework with (4 · 6 · 8)(6 · 8 2 )(4 · 6 · 8 3 · 10) topology, which is constructed from left- and right- helices. Compound 2 displays a 2D chiral helical-layer structure which can be rationalized as a (3,6)-connected 2D kgd (kagome dual) net, and these 2D layers are further extended by hydrogen-bonding interactions to form a 3D supramolecular network. By comparing compounds 1 and 2 , it is believed that the tripodal N-containing ligand (Htpim) plays a key role in the construction of helical coordination polymers. In addition, the photoluminescence property of compound 1 and the magnetic property of compound 2 were studied.
Print ISSN:
0044-2313
Electronic ISSN:
1521-3749
Topics:
Chemistry and Pharmacology
