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Chiral three-dimensional cadmium(II)-based coordination polymer constructed from a lactic acid derivative: synthesis,
Xiu Ju Yin1, Yan Lin1, Jia Hui Luo1
1School of Chemical and Biological Engineering, Hechi University, Hechi 563006, People's Republic of China.
Acta Crystallographica. Section C, Structural Chemistry
|February 23, 2026
Summary
A novel chiral coordination polymer, HU32-R, was synthesized using a lactic acid derivative and cadmium ions. This material exhibits significant nonlinear optical activity and macroscopic chirality, making it promising for optical applications.
Area of Science:
- Inorganic Chemistry
- Materials Science
- Crystallography
Background:
- Coordination polymers are investigated for their potential in nonlinear optical (NLO) applications.
- Chiral ligands are crucial for developing materials with specific optical properties.
Purpose of the Study:
- To synthesize a novel chiral coordination polymer with significant nonlinear optical (NLO) activity.
- To characterize the structure, stability, and optical properties of the synthesized complex.
Main Methods:
- Solvothermal synthesis using (R)-5-(1-carboxyethoxy)isophthalic acid ((R)-H3cia) and Cd2+ ions.
- Single-crystal X-ray diffraction for structural analysis.
- Solid-state circular dichroism (CD) and fluorescence spectroscopy for optical characterization.
- Second-harmonic generation (SHG) measurements to evaluate NLO activity.
Main Results:
- Successful synthesis of the chiral coordination polymer [Cd3{(R)-cia}2(pyr)(H2O)4]n (HU32-R).
- Structural analysis revealed a 3D framework crystallizing in the monoclinic space group I2.
- The complex demonstrated good phase purity, water stability, macroscopic chirality, and fluorescence emission at 487 nm.
- Significant second-order NLO activity was confirmed, with SHG intensity 0.72 times that of KDP.
Conclusions:
- The synthesized coordination polymer HU32-R possesses significant second-order nonlinear optical activity.
- The material's chirality and stability suggest potential applications in advanced optical devices.
- This study highlights the use of chiral ligands in designing functional coordination polymers.
Keywords:
SHG activitychiral coordination polymercrystal structurefluorescent propertylactic acid derivativethree-dimensional frameworkMore Related Videos
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