CRYSTAL-STRUCTURE OF L-LEUCINE NITRATE

被引：7
作者：
BAHADUR, SA
RAJARAM, RK
NETHAJI, M
NATARAJAN, S
机构：
[1] School of Physics, Madurai Kamaraj University
[2] Department of Inorganic, Physical Chemistry, Indian Institute of Science
来源：
ZEITSCHRIFT FUR KRISTALLOGRAPHIE | 1993年 / 203卷
关键词：
CRYSTAL STRUCTURE; LEUCINE; AMINO-ACID;
D O I：
10.1524/zkri.1993.203.Part-1.93
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
L-leucine nitrate, C6H14NO2+ . NO3-, M = 194.187, triclinic, P1, a = 5.662(6), h = 8.445(4), c = 10.867(6) angstrom, alpha = 75.79(4), beta = 95.45(6), gamma = 99.82(6)-degrees, V = 495.57 angstrom3, D(m) = 1.307 gm/cc (flotation), D(c) = 1.301 gm/cc, Z = 2, mu = 1.06 cm-1, lambda(MoKalpha) = 0.71073 angstrom, F(000) = 208, T = 293 K. The structure was solved by direct, Fourier and difference Fourier methods, refined to R = 0.045 and wR = 0.050 for 1934 observed reflections with intensity greater than 3sigma(I). Since the structure has a pseudo 2(1)-axis parallel to the a-axis, all the hydrogen atoms were located by geometric consideration and fixed at their calculated positions. The pseudo-symmetry is present even at the final stage of refinement. All available hydrogen atoms are involved in hydrogen bonding.
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页码：93 / 100
页数：8
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