Yanming Zhang a écrit :
Hi,
Would some experts help me to interpretate the attached self rotation
function ps graph? The cell: 84.847 84.847 172.485 P4 indexing. In
perticular, I was puzzled by:
1,Does the peak (90 45 180) a crystallographic 2-fold or
non-crystallographic 2-fold?
2,Why there is no crystallographic peak on the section kappa=90?
Giving P4 space group, there should be some high crystallographic
4-fold peaks appear on the section.
It probably takes you only 5 minutes. Your help is greatly appreciated.
Yanming
Deqr Yanming
The north pole of the diagramm corresponds to the direction of the z
axis. There is well a crystallographic 4-fold (and automatically 2-
fold) peak in this direction. Then there are non-crystallographic 2-fold
axes in the x,y plane, spaced by 45 degrees, as all the peaks appear to
have the same height.
Greetings
Wim Burmeister
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Wim Burmeister
Professeur, Membre de l'Institut Universitaire de France
Unit of Virus Host Cell Interactions (UVHCI) UMR5233 UJF-EMBL-CNRS
6 rue Jules Horowitz
B.P. 181, F-38042 Grenoble Cedex 9 FRANCE
E-mail: [EMAIL PROTECTED]
Tel: +33 (0) 476 20 72 82 Fax: +33 (0) 476 20 94 00
http://www2.ujf-grenoble.fr/pharmacie/laboratoires/gdrviro
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