DIRDIF-2008 is a program for solving crystal structures. Major features are the use of Patterson methods, and special direct methods for solving symmetry problems. Powerful procedures are provided for the use of chemical knowledge to solve difficult structures. Ab-initio direct methods and structure refinement are not included in DIRDIF-2008.
DIRDIF-2008 for Windows is the Windows implementation of the latest DIRDIF release (2008.3), which is a considerably updated version of the previous release (99.2). See the included manual for full details. It is provided free of charge for academic, scientific, educational and non-commercial users, provided its use is acknowledged.