Issue 12, 2011
From the journal:

New Journal of Chemistry

Synthesis, growth and characterization of a third-order nonlinear optical crystal based on the borate ester with sodium supporting its structural framework†

Zhihua Sun,a   Tianliang Chen,a   Ning-ning Cai,b   Jing-wei Chen,c   Lina Li,a   Yan Wang,a   Junhua Luo*a  and  Maochun Honga  

* Corresponding authors

a Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China

b State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan, China

c Department of Optics, Shandong University, Jinan, China

Abstract

A novel third-order nonlinear optical (NLO) crystal based on the organic borate carboxylate ester, with formula [Na4(H2O)5][B{O2CCH(O)Ph}2]4 (abbreviated as LMBNa), has been prepared in aqueous solution. Single-crystal X-ray diffraction analysis reveals that the boron atom is coordinated with two L-mandelic ligands by alkoxide and carboxylate groups, forming the [B{OOCCH(O)C6H5}]− anion. The sodium cation supports its structural framework of borate anions in the formation of a cross-linked structure. Bulk single crystals of LMBNa were grown from acetonitrile/water by the temperature lowering method. Studies of its third-order NLO properties using a Z-scan technique demonstrate that the LMBNa crystal possesses a strong saturable absorption and the self-focusing effect. Its second molecular hyperpolarizability (γ) at 532 nm is calculated to be (3.9 ± 0.2) × 10−31 esu. Furthermore, dielectric experiments reveal that LMBNa has a quite low-dielectric constant (∼3.43) and shows an anisotropy of frequency dependence along the different crystallographic directions. Such dielectric behaviors will favor the application of the LMBNa crystal under the electric field. All the results indicate that LMBNa might be a potential candidate material for the third-order NLO applications.

Graphical abstract: Synthesis, growth and characterization of a third-order nonlinear optical crystal based on the borate ester with sodium supporting its structural framework

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Supplementary files

Article information

DOI
https://doi.org/10.1039/C1NJ20420C
Article type
Paper
Submitted
16 May 2011
Accepted
02 Sep 2011
First published
10 Oct 2011

New J. Chem., 2011,35, 2804-2810

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Synthesis, growth and characterization of a third-order nonlinear optical crystal based on the borate ester with sodium supporting its structural framework

Z. Sun, T. Chen, N. Cai, J. Chen, L. Li, Y. Wang, J. Luo and M. Hong, New J. Chem., 2011, 35, 2804 DOI: 10.1039/C1NJ20420C

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