Reinvestigation of the Crystal Growth of “L-Proline Succinate” and “L-Threonine Zinc Acetate” Showing Use of Infrared Spectra for Product Identification

• 作者: Bikshandarkoil R. Srinivasan Kalimuthu Moovendaran Subramanian Natarajan
• 来源期刊: 结晶过程及技术期刊(英文)
• 学科: 化学
• 关键词: L-PROLINE SUCCINATE L-THREONINE Zinc ACETATE X-Ray Cell Data IR Spectra Non-Linear Optical Crystals
• 年，卷（期）: 2014,（2）
• 页码范围: 121-125
• 页数: 5页
• 分类号: O6

摘要

Reinvestigation of the growth of L-proline succinate (1) (Paramasivam and Ramachandra Raja, Journal of Crystallization Process and Technology, 2 (2012) 21 - 24;Balamurugaraj et al., Journal of Material Physics and Chemistry 1 (2013) 4 - 8) and L-threonine zinc acetate (2) (Puhal Raj and Ramachandra Raja, Photonics and Optoelectronics, 2 (2013) 56 - 64) is reported. Slow evaporation of an aqueous solution containing equimolar quantities of L-proline and succinic acid (for 1) and L-threonine and zinc acetate (for 2) results in the fractional crystallization of succinic acid (in the first case) and L-threonine (in the second case) and not any novel organic non-linear optical (NLO) crystals. In this paper, the usefulness of infrared spectra for correct product characterization is demonstrated.