Related Experiment Video
Updated: May 23, 2025
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Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework
Published on: April 9, 2018
9.0K
Chirality and Polarity Modulation in Semiconductive Zinc(II) Coordination Polymers Containing Thiolate-Based Ligands
Shion Tsujimura1, Ryohei Akiyoshi1, Akinori Saeki2
1School of Science, Kwansei Gakuin University, 1 Gakuen Uegahara, Sanda, Hyogo 669-1330, Japan.
Inorganic Chemistry
|March 10, 2025
Summary
Chiral semiconductors, specifically Zn(II) coordination polymers, were synthesized with homochiral and heterochiral structures. These materials exhibit tunable photoconductivity and structural properties, showing potential for optoelectronics and spintronics applications.
Area of Science:
- Materials Science
- Solid-State Chemistry
- Crystallography
Background:
- Chiral semiconductors are gaining interest for optoelectronics and spintronics.
- Controlling chirality and structure in coordination polymers is key for advanced applications.
Purpose of the Study:
- To synthesize and characterize homochiral and heterochiral semiconductive Zn(II) coordination polymers.
- To investigate the relationship between structure, chirality, and photoconductivity.
- To explore reversible structural and property modifications.
Main Methods:
- Systematic synthesis of Zn(II) coordination polymers using enantiopure and racemic methylbenzylamine (mba) ligands.
- Single-crystal X-ray diffraction for structural determination.
- Time-resolved microwave conductivity measurements and first-principles calculations.
Main Results:
- Homochiral 1D helical structures (KGF-57) were obtained using enantiopure mba.
- Heterochiral 1D structures (KGF-57) and achiral-polar zigzag structures (KGF-58) were formed using racemic mba, dependent on synthesis conditions.
- All synthesized polymers exhibited photoconductivity from the Zn-thiolate skeleton.
- Reversible structural conversion with chirality and polarity changes was achieved by ligand exchange.
Conclusions:
- The study successfully synthesized diverse chiral and achiral Zn(II) coordination polymers with tunable structures.
- Photoconductivity was confirmed, originating from the Zn-thiolate framework.
- Demonstrated potential for developing switchable chiral materials for electronic applications.
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