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l-Lysinium trifluoro-acetate.

Zhi Hua Sun¹, Jian Dong Fan, Guang Hui Zhang

¹State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan 250100, People's Republic of China.

Acta Crystallographica. Section E, Structure Reports Online

|January 5, 2011

Summary

This study introduces a new organic nonlinear optical crystal, l-lysinium trifluoroacetate. Its structure features a 3D hydrogen-bonding network crucial for its optical properties.

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Area of Science:

Materials Science
Crystallography
Optics

Background:

Organic nonlinear optical (NLO) crystals are essential for advanced photonic applications.
Developing new NLO materials with improved properties is an ongoing research area.

Purpose of the Study:

To synthesize and characterize a new organic nonlinear optical crystal.
To investigate the crystal structure and hydrogen bonding interactions of l-lysinium trifluoroacetate.

Main Methods:

Single-crystal X-ray diffraction was used to determine the crystal structure.
Analysis of hydrogen bonding interactions (N-H⋯O) was performed.

Main Results:

The crystal structure of l-lysinium trifluoroacetate (C(6)H(15)N(2)O(2)(+)·C(2)F(3)O(2)(-)) was successfully determined.

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A three-dimensional hydrogen bonding network, including closed rings and extended chains along the [010] direction, was observed.

The trifluoroacetate anion exhibits disorder in the fluorine atom positions.

Conclusions:

The identified hydrogen bonding network is key to the crystal's nonlinear optical properties.
This new material shows potential for applications in nonlinear optics.