Seetharaman, J. ; Rajan , S. S. ; Srinivasan, R. (1993) Crystal structure of abrine Journal of Crystallographic and Spectroscopic Research, 23 (3). pp. 167-170. ISSN 0277-8068
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Official URL: http://www.springerlink.com/content/n082871t717u47...
Related URL: http://dx.doi.org/10.1007/BF01190041
Abstract
The crystal structure of abrine (N-methyl L-tryptophan, (C12H14N2O2) was determined by X-ray diffraction. Space group P212121, a=5.372(1), b=8.595(1) and c=24.082(2)Å, Z=4, Dm=1.30(4) gcm-3, Dx=1.304 gcm-3, R=0.039 and wR=0.042. The conformational parameters for this structure following the IUPAC nomenclature are Φ=67.7(5)°, χ1=–175(4)°, χ21=105.2(7)° and χ22=–66.4(7)°; the atom C9 in the present structure is gauche to N15 and trans to C12. The molecules exist in a zwiterionic form and are stabilized in the unit cell by N—H···O hydrogen bonds.
| Item Type: | Article |
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| Source: | Copyright of this article belongs to Springer. |
| ID Code: | 36742 |
| Deposited On: | 12 Apr 2011 10:32 |
| Last Modified: | 12 Apr 2011 10:32 |
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