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

Subramanian Natarajan, Bikshandarkoil R. Srinivasan, Kalimuthu Moovendaran

Department of Chemistry, Goa University, Goa, India.
School of Physics, Madurai Kamaraj University, Madurai, India.

DOI: 10.4236/jcpt.2014.42015                

Abstract

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.

Keywords

L-Proline Succinate, L-Threonine Zinc Acetate, X-Ray Cell Data, IR Spectra, Non-Linear Optical Crystals

Conflicts of Interest

The authors declare no conflicts of interest.

References

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