Hydrothermal synthesis, crystal structure and luminescence of four novel metal-organic frameworks
- Department of Chemistry, Tongji University, Shanghai (China)
- Department of Chemistry, Fudan University, Shanghai (China)
Using the principle of crystal engineering, four novel metal-organic coordination polymers, {l_brace}[Cd{sub 1}(nic)2(H{sub 2}O)]2[Cd{sub 2}(nic)2(H{sub 2}O)2]{r_brace} {sub n} (1), [Cd{sub 2}(fma)2(phen)2] {sub n} (2), [Cd(fma)(bipy)(H{sub 2}O)] {sub n} (3) and [Zn(mal)(bipy).3H{sub 2}O] {sub n} (4) (nic=nicotinate, fma=fumarate, mal=malate, phen=phenanthroline, bipy=2,2'-bipyridine) have been synthesized by hydrothermal reaction of M(CH{sub 3}COO)2.2H{sub 2}O (M=Zn, Cd) with nicotinic acid, fumaric acid and cooperative L (L=phen, bipy), respectively. X-ray analysis reveals that complex 1 possesses an unprecedented two-dimensional topology structure constructed from three-ply-like layers, complex 2 is an infinite 2D undulating network, complex 3 is a 1D zigzag chain and complex 4 belongs to a 1D chain. The results indicate a transformation of fumarate into malate during the course of hydrothermal treatment of complex 4. The photophysical properties have been investigated with luminescent excitation and emission spectra. -- Graphical abstract: Using the principle of crystal engineering, four novel metal-organic coordination polymers, {l_brace}[Cd{sup 1}(nic){sub 2}(H{sub 2}O)]{sub 2}[Cd{sup 2}(nic){sub 2}(H{sub 2}O){sub 2}]{r_brace} {sub n} , [Cd{sub 2}(fma){sub 2}(phen){sub 2}] {sub n} , [Cd(fma)(bipy)(H{sub 2}O)] {sub n} and [Zn(mal)(bipy).3H{sub 2}O] {sub n} have been synthesized by hydrothermal method. X-ray analysis reveals that complex 1 possesses an unprecedented two-dimensional topology structure constructed from three-ply-like layers, complex 2 is an infinite 2D undulating network, complexes 3 and 4 belong to a 1D chain. The results indicate a transformation of fumarate into malate during the course of hydrothermal treatment of complex 4.
- OSTI ID:
- 20902495
- Journal Information:
- Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 12 Vol. 179; ISSN 0022-4596; ISSN JSSCBI
- Country of Publication:
- United States
- Language:
- English
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