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Structural and thermal characterization of L‐arginine dihydrate ‐ a nonlinear optical material
Author(s) -
Mallik Tapati,
Kar Tanusree,
Bocelli Gabriele,
Musatti Amos
Publication year - 2006
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.200510574
Subject(s) - zwitterion , arginine , carboxylate , chemistry , characterization (materials science) , molecule , thermal stability , crystal structure , crystallography , group (periodic table) , stereochemistry , crystal (programming language) , polymer chemistry , amino acid , nanotechnology , materials science , organic chemistry , biochemistry , computer science , programming language
Crystal structure and thermal stability of the hydrated crystals of the basic amino acid L‐arginine named as L‐arginine dihydrate (LAD), a nonlinear optical material have been reported here. The title compound crystallized in the space group P2 1 2 1 2 1 with Z=4 and unit cell dimensions a=11.856(2)Å, b=15.694(2)Å, c=5.664(3)Å. The arginine molecule is a zwitterion with the guanidyl group accepting an extra proton from the carboxylate group. DTA‐TG analysis gives an idea about the thermal behaviour of LAD and ruled out the possibility of structural changes independent of mass changes. © 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim