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Synthesis of L-valine crystals

✍ Scribed by E. Ramachandran; S. Natarajan

Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 185 KB
Volume: 44
Category: Article
ISSN: 0232-1300
DOI: 10.1002/crat.200900012

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✦ Synopsis

Abstract

L‐valine (C~5~H~11~NO~2~), an essential amino acid of monoclinic space group P2~1~, Z = 4 and lattice parameters a = 9.688 (2) Å, b = 5.267 (1) Å, c = 11.980 (2) Å and β = 90.75 (1)° and of size: 6.0 mm across and 0.5 mm thick was crystallized in silica gel under suitable pH conditions by reduction of solubility method. Density measurement and single crystal X‐ray diffraction were used to characterize the grown crystals. Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and scanning electron microscopic (SEM) studies were made and crystal packing also discussed. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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