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Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
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New Zn²⁺ coordination polymers constructed from acylhydrazidate molecules: synthesis and structural characterization.
Yan-Ning Wang1, Guang-Hua Li, Fu-Quan Bai
1College of Chemistry and State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Jiefang Road 2519, Changchun, 130023, P.R. China. jhyu@jlu.edu.cn.
Dalton Transactions (Cambridge, England : 2003)
|September 12, 2014
Summary
Three new zinc coordination polymers were synthesized using hydrothermal reactions. These materials exhibit diverse structures, photoluminescence, and gas adsorption properties, with one showing strong blue light emission and nitrogen adsorption capabilities.
Area of Science:
- Coordination Chemistry
- Materials Science
- Crystallography
Background:
- Hydrothermal synthesis is a versatile method for creating novel coordination polymers.
- Acylhydrazidate ligands offer tunable properties for constructing complex metal-organic frameworks.
Purpose of the Study:
- To synthesize and characterize new acylhydrazidate-extended Zn(2+) coordination polymers.
- To investigate the structural diversity, photoluminescent properties, and gas adsorption capabilities of these new compounds.
Main Methods:
- Hydrothermal in situ ligand reactions involving acylation and reduction.
- X-ray single-crystal diffraction for structural elucidation.
- Photoluminescence spectroscopy and nitrogen adsorption analysis.
Main Results:
- Three new Zn(2+) coordination polymers ([Zn2(3-apth)(atrz)2], [Zn2(4-apth)(atez)2], and [Zn(3-cppth)(H2O)]) were successfully synthesized.
- Compounds 1 and 2 exhibit 3-D network structures with distinct topologies, while compound 3 forms a 1-D chain.
- All compounds display photoluminescence, with compound 2 showing intense blue emission, influenced by the phthalhydrazidate side group.
- Compound 2 demonstrated nitrogen adsorption capacity of 41.0 cm(3) g(-1) at 77 K.
Conclusions:
- The synthetic strategy yields diverse coordination polymer structures.
- The phthalhydrazidate ligand's side group significantly impacts luminescent properties.
- Compound 2 shows potential for gas storage applications due to its strong blue emission and N2 adsorption.
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