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Updated: Jun 1, 2026
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Chemical Synthesis of Porous Barium Titanate Thin Film and Thermal Stabilization of Ferroelectric Phase by Porosity-Induced Strain
Published on: March 27, 2018
Poly[μ(6)-pyridine-2,4-dicarboxyl-ato-barium].
Summary
This study reveals a novel coordination mode for pyridine-2,4-dicarboxylic acid in a barium complex, forming a 3D polymeric framework. This discovery expands understanding of metal-organic coordination chemistry.
Area of Science:
- Coordination Chemistry
- Materials Science
- Crystallography
Background:
- Barium (Ba(II)) ion coordination chemistry is crucial for developing novel materials.
- Pyridine-2,4-dicarboxylic acid is a versatile ligand with potential for constructing complex structures.
- Understanding new coordination modes can lead to advanced material properties.
Purpose of the Study:
- To synthesize and characterize a novel barium complex with pyridine-2,4-dicarboxylic acid.
- To elucidate the coordination geometry around the Ba(II) ion.
- To investigate the supramolecular assembly and framework formation.
Main Methods:
- Single-crystal X-ray diffraction analysis was employed to determine the crystal structure.
- Infrared spectroscopy was used for ligand and complex characterization.
- Elemental analysis confirmed the composition of the complex.
Main Results:
- A new coordination mode of pyridine-2,4-dicarboxylic acid was identified.
- The barium ion exhibits a distorted bicapped trigonal-prismatic BaNO(7) coordination environment.
- A three-dimensional supramolecular polymeric framework was successfully constructed through O-atom bridging.
Conclusions:
- The study successfully synthesized and characterized a novel barium complex, [Ba(C(7)H(3)NO(4))](n).
- The identified coordination mode of the ligand and the resulting 3D framework offer insights into designing metal-organic materials.
- This work contributes to the field of coordination polymers with potential applications in various areas.
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