1600 - 5368 DL - Methioninium trichloroacetate at 123 K
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چکیده
# 2003 International Union of Crystallography Printed in Great Britain ± all rights reserved In the title compound, C5H12NO2S + C2Cl3O2, the methionine molecule exists as a cation with a protonated amino group and an uncharged carboxylic acid group, while the trichloroacetic acid molecule exists as an anion. The assembly of methioninium and trichloroacetate ions, leading to layers parallel to the ab plane, is characterized by a strong OÐH O-type hydrogen bond between the carboxylic acid and carboxylate groups of the respective ions. A head-to-tail hydrogen bond is also observed between the methioninium cations, in addition to S Cl, Cl Cl and Cl O short contacts.
منابع مشابه
1600 - 5368 1 - ( Azepan - 1 - yl ) - 2 - ( 1 H - indol - 3 - yl ) ethane - 1 , 2 - dione
# 2006 International Union of Crystallography All rights reserved In the crystal structure of the title compound, C16H18N2O2, the indole moiety is nearly planar. The two carbonyl groups are almost perpendicular, with a torsion angle of 105.7 (4) , and the single C—C bond linking the two carbonyl groups is 1.515 (5) Å in length. The molecules are linked together by N—H O intermolecular hydrogen ...
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