S. A. Bahadur, R. Rajaram
1995
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0
Influential Citations
5
Citations
Journal
Zeitschrift Fur Kristallographie
Abstract
DL-alanine nitrate (C 3 H 8 NO 2 ) + (NO 3 ) − , M = 152.11, monoclinic, P2 1 /c, a = 7.648(1) A, b = 5.631(1) A, c = 16.335(3) A, β = 94.42(1)°, V = 701(1) A 3 , D m = 1.45 (flotation), D c = 1.44, Z = 4, μ(MoK α ) = 1.3 cm −1 , λ(MoK α ) = 0.70926 A. The crystal structure was solved by direct methods and refined to an R value of 0.062 and wR of 0.063 for 680 unique reflections with I > 3(I). The intensity data seem to have suffered from secondary extinction effects. Alanine molecules exist in cationic form with protonation of the carboxylic group. The hydrogen-bonded chains run along the c-direction at x = 1/4 and 3/4 planes