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Synthesis of L‐valine crystals
Author(s) -
Ramachandran E.,
Natarajan S.
Publication year - 2009
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200900012
Subject(s) - monoclinic crystal system , thermogravimetric analysis , fourier transform infrared spectroscopy , chemistry , solubility , crystallography , scanning electron microscope , crystal (programming language) , infrared spectroscopy , single crystal , analytical chemistry (journal) , crystal structure , diffraction , materials science , optics , organic chemistry , physics , programming language , computer science , composite material
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)