Acta Crystallographica Section C

Structural Chemistry

Volume 70, Part 3 (March 2014)


organic compounds



sk3518 scheme

Acta Cryst. (2014). C70, 326-331    [ doi:10.1107/S2053229614002563 ]

The self-assembling zwitterionic form of L-phenyl­alanine at neutral pH

E. Mossou, S. C. M. Teixeira, E. P. Mitchell, S. A. Mason, L. Adler-Abramovich, E. Gazit and V. T. Forsyth

Abstract: The title zwitterion (2S)-2-aza­niumyl-1-hy­droxy-3-phenyl­pro­pan-1-olate, C9H11NO2, also known as L-phenyl­alanine, was characterized using synchrotron X-rays. It crystallized in the monoclinic space group P21 with four mol­ecules in the asymmetric unit. The 0.62 Å resolution structure is assumed to be closely related to the fibrillar form of phenylalanine, as observed by electron microscopy and electron diffraction. The structure exists in a zwitterionic form in which [pi]-[pi] stacking and hydrogen-bonding inter­actions are believed to form the basis of the self-assembling properties.

CCDC reference: 985094

Formula: C9H11NO2

Keywords: crystal structure; synchrotron radiation; zwitterion; L-phenyl­alanine; fibrils; nanotubes; optical microscopy analysis.


cmldisplay filedownload file

Chemical Markup Language (CML) file (3.4 kbytes)
[ doi:10.1107/S2053229614002563/sk3518Isup3.cml ]
Supplementary material


Notes:

To open or display or play some files, you may need to set your browser up to use the appropriate software. See the full list of file types for an explanation of the different file types and their related mime types and, where available links to sites from where the appropriate software may be obtained.

The download button will force most browsers to prompt for a file name to store the data on your hard disk.

Where possible, images are represented by thumbnails.

 bibliographic record in  format

  Find reference:   Volume   Page   
  Search:     From   to      Advanced search

Copyright © International Union of Crystallography
IUCr Webmaster