Citation:
CHEN Li-Zhuang, JI Qin, DAN Yuan-Yuan. Synthesis, Structure, and Luminescent and Dielectric Properties of Two Novel 1D Chains Based on a T-Shaped Tripodal Ligand 4-(4,5-Dicarboxy-1H-imidazol-2-yl)pyridine Loxide[J]. Chinese Journal of Structural Chemistry,
2016, 35(11): 1728-1735.
doi:
10.14102/j.cnki.0254-5861.2011-1151
Synthesis, Structure, and Luminescent and Dielectric Properties of Two Novel 1D Chains Based on a T-Shaped Tripodal Ligand 4-(4,5-Dicarboxy-1H-imidazol-2-yl)pyridine Loxide
摘要:
Two 1D chain metal-organic framework complexes, {Co[(C10H5N3O5)-(H2O)2·H2O]}n (1) and {Cd[(C10H5N3O5)(H2O)2]}n (2), based on a T-shaped tripodal ligand 4-(4,5-dicarboxy-1H-imidazol-2-yl) pyridine 1-oxide (H3DCImPyO) have been reacted under hydrothermal conditions, and were characterized by single-crystal X-ray structure analysis, fluorescent analysis and thermal gravimetric analysis. According to single-crystal X-ray determination, complex 1 crystallizes in the monoclinic system, space group P21/n with a=9.4930(13), b=13.2024(18), c=10.5203(14) Å, β=98.402(2)°, Z=4, V=1304.4(3) Å3; and complex 2 crystallizes in the monoclinic system, space group C2/c with a=13.557(3), b=13.568(3), c=6.7804(13) Å, β=105.095(2)°, Z=4 and V=1204.2(4) Å3. Fluorescent analysis of complex 2 showed an intense emission band at 466 nm when the exciting radiation was set at 360 nm. Dielectric constants of complexes 1 and 2 were measured at different frequencies with temperature variation.
English
Synthesis, Structure, and Luminescent and Dielectric Properties of Two Novel 1D Chains Based on a T-Shaped Tripodal Ligand 4-(4,5-Dicarboxy-1H-imidazol-2-yl)pyridine Loxide
Abstract:
Two 1D chain metal-organic framework complexes, {Co[(C10H5N3O5)-(H2O)2·H2O]}n (1) and {Cd[(C10H5N3O5)(H2O)2]}n (2), based on a T-shaped tripodal ligand 4-(4,5-dicarboxy-1H-imidazol-2-yl) pyridine 1-oxide (H3DCImPyO) have been reacted under hydrothermal conditions, and were characterized by single-crystal X-ray structure analysis, fluorescent analysis and thermal gravimetric analysis. According to single-crystal X-ray determination, complex 1 crystallizes in the monoclinic system, space group P21/n with a=9.4930(13), b=13.2024(18), c=10.5203(14) Å, β=98.402(2)°, Z=4, V=1304.4(3) Å3; and complex 2 crystallizes in the monoclinic system, space group C2/c with a=13.557(3), b=13.568(3), c=6.7804(13) Å, β=105.095(2)°, Z=4 and V=1204.2(4) Å3. Fluorescent analysis of complex 2 showed an intense emission band at 466 nm when the exciting radiation was set at 360 nm. Dielectric constants of complexes 1 and 2 were measured at different frequencies with temperature variation.
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Key words:
- 1D chain
- / coordination polymers
- / hydrothermal condition
- / dielectric constants
- / fluorescence
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