Post Graduate and Research Department of Physics, Government Arts College, Ariyalur 621 713, Tamilnadu, India.
Spectrochim Acta A Mol Biomol Spectrosc. 2013 Nov;115:537-43. doi: 10.1016/j.saa.2013.06.061. Epub 2013 Jun 28.
The single crystals of bis l-proline hydrogen nitrate (BLPHN) belonging to non-centrosymmetric space group were successfully grown by the slow evaporation solution growth technique. The BLPHN crystals of size 10×7×3mm(3) were obtained in 35days. Initially, the solubility tests were carried out for two solvents such as deionized water and mixed of deionized water-acetone. Among the two solvents, the solubility of BLPHN was found to be the highest in deionized water, so crystallization of BLPHN was done from its aqueous solution. As grown, crystals were characterized by single crystal X-ray diffraction studies and optical transmission spectral studies. Infrared spectroscopy, thermo gravimetric analysis and differential thermal analysis measurements were performed to study the molecular vibration and thermal behavior of the grown BLPHN crystals. Nonlinear optical (NLO) behavior of BLPHN crystal was studied by Kurtz and Perry powder method.
采用缓慢蒸发溶液生长技术成功生长出双 L-脯氨酸硝酸盐（BLPHN）的单晶
属于非中心对称空间群的双 L-脯氨酸硝酸盐（BLPHN）单晶，采用缓慢蒸发溶液生长技术成功生长。35 天后，得到了尺寸为 10×7×3mm(3)的 BLPHN 晶体。最初，针对两种溶剂（去离子水和去离子水-丙酮的混合物）进行了溶解度测试。在这两种溶剂中，BLPHN 在去离子水中的溶解度最高，因此 BLPHN 的结晶是从其水溶液中进行的。对生长出的晶体进行了单晶 X 射线衍射研究和光学透过光谱研究。进行了红外光谱、热重分析和差示热分析测量，以研究所生长的 BLPHN 晶体的分子振动和热行为。通过 Kurtz 和 Perry 粉末法研究了 BLPHN 晶体的非线性光学（NLO）行为。
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