The Commission on Powder Diffraction (CPD) of the International Union of Crystallography (IUCr) is sponsoring a round robin on structure determination by powder diffractometry (SDPD). The purpose is to compare different methods of structure solution on the identical sets of measurements.
The results will be published in the open literature. This initiative follows the 1998 and 2002 previous SDPD Round Robin of which the short conclusions were published in CPD Newsletters 25 & 29. There is a dozen of different methods that can yield the expected result (atomic coordinates) from a powder pattern, the most recent being by charge flipping. Not even speaking of prediction means which do not need the diffraction data. Informations can be found within the previous CPD Newsletters including the recent issue N°35. http://www.iucr-cpd.org/ More details and the data for two samples are available at : http://sdpd.univ-lemans.fr/SDPDRR3/ Deadline : Wednesday 30 April 2008. Best wishes ! Armel Le Bail & Lachlan Cranswick February 1st, 2008 ----------------------- Lachlan M. D. Cranswick Contact outside working hours / Coordonnees en dehors des heures de travail: NEW E-mail / courriel: lc *at* bluehaze.com.au Home Tel: (613) 584-4226 ; Cell/mobile: (613) 401-6254 WWW: http://lachlan.bluehaze.com.au/ P.O. Box 2057, Deep River, Ontario, Canada, K0J 1P0 (please use clear titles in any Email - otherwise messages might accidentally get put in the SPAM list due to large amount of junk Email being received. If you don't get an expected reply to any messages, please try again.) (Essayez d'utiliser des titres explicites - sans quoi vos messages pourraient aboutir dans un dossier de rebuts, du fait de la quantite tres importante de pourriels recue. Si vous n'obtenez pas la reponse attendue, merci de bien vouloir renvoyer un message.)
