Hi everyone, I have some data where I suspect that an atom rather than sitting exactly on a special position is actually displaced off of it, and should essentially form a torus around it. I think I overheard that there is the possibility of using toroidal displacement factors in one of the more common programs. Could someone give me a pointer in that direction if it is possible at all? Thanks, AlexY Dr. Alexandre F. T. Yokochi Assistant Professor (Senior Research) Director, X-ray Crystallographic Facilities Department of Chemistry Oregon State University Corvallis, OR 97331-4003 Ph# (541) 737-6724 Email: [EMAIL PROTECTED] Fax# (541) 737-2062 Web Page: crystal.chem.orst.edu/~alexy (temporarily unavailable)