ISSN:
1572-8854
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geosciences
,
Physics
Notes:
Abstract The crystal structure of abrine (N-methyl L-tryptophan, (C12H14N2O2) was determined by X-ray diffraction. Space groupP212121,a=5.372(1),b=8.595(1) andc=24.082(2)Å,Z=4,D m=1.30(4) gcm−3,D x=1.304 gcm−3,R=0.039 andwR=0.042. The conformational parameters for this structure following the IUPAC nomenclature areφ=67.7(5)°, ϰ1=−175(4)°, K21=105.2(7)° and χ22=−66.4(7)°; the atom C9 in the present structure is gauche to N15 andtrans to C12. The molecules exist in a zwiterionic form and are stabilized in the unit cell by N-H⋯O hydrogen bonds.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01190041
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