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Novel pb and zn coordination polymers: synthesis, molecular structures, and third-order nonlinear optical properties
Xiangru Meng1, Yinglin Song, Hongwei Hou
1Department of Chemistry, Zhengzhou University, Zhengzhou 450052, Henan, P. R. China.
Inorganic Chemistry
|February 18, 2003
Summary
Three novel coordination polymers were synthesized and characterized for their nonlinear optical (NLO) properties. Polymer 1 demonstrated strong NLO absorption and refractive properties, outperforming previously reported materials.
Area of Science:
- Materials Science
- Chemistry
- Solid State Chemistry
Background:
- Coordination polymers offer tunable structures and properties.
- Investigating novel coordination polymers for advanced applications is crucial.
- Understanding structure-property relationships is key for material design.
Purpose of the Study:
- Synthesize and structurally characterize three new coordination polymers.
- Evaluate the third-order nonlinear optical (NLO) properties of these polymers.
- Correlate crystal structures with observed NLO behaviors.
Main Methods:
- Synthesis of coordination polymers using metal salts and organic linkers.
- Structural characterization via X-ray diffraction.
- Third-order NLO property determination using pulsed laser excitation.
Main Results:
- Three novel coordination polymers ([Pb(bbbm)(2)(NO3)2]n, [Zn(bbbt)(NCS)2]n, [Zn(pbbt)(NCS)2]n) were synthesized.
- Polymer 1 exhibited a 2D rhombohedral grid, Polymer 2 a concavo-convex chain, and Polymer 3 a 1D zigzag chain structure.
- All polymers displayed third-order NLO properties, with Polymer 1 showing particularly strong absorptive and refractive characteristics.
Conclusions:
- The synthesized coordination polymers possess significant third-order NLO properties.
- Polymer 1 demonstrates superior NLO performance compared to Polymers 2 and 3, and other reported materials.
- Metal ion valence shell structure and crystal packing influence NLO properties.
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