SIR92 SIR92 is a program for automatic solution of crystal structures by direct methods. The method for the automatic structure determination is based on the representation theory. 1-phase structure seminvariants and 3-phase structure invariants are estimated via their second representation, 2-phase seminvariants and 4-phase invariants via their first representation. SIR92 is the heir of SIR88 (Burla, Camalli, Cascarano, Giacovazzo, Polidori, Spagna & Viterbo, 1989) of which it retains most of the features (f.e., treatment of pseudotranslational symmetry, use of prior information, tangent weighting schemes, etc.)

Current Version:   ?? License Type:   Free

Home Site: http://www.netsci.org/Resources/Software/Struct/sir92.html Source Code Availability:   Yes (contact Dr. Gianluca Cascarano) Available Binary Packages: Debian Package:   No RedHat RPM Package:   No Other Packages:   No Targeted Platforms: UNIX/X (including Linux), DEC workstations. SIR92 was written in standard Fortran 77. A module written in C language is supplied in order to interface the program with X-window or DEC-Window terminals for graphics. Therefore, besides the C compiler, an Xlib library is also needed. Software/Hardware Requirements: Fortran and C compilers, X11, 4MB RAM or more.

Other Links: http://hackberry.chem.niu.edu/ChemistrySoftware/CrystallographyPrograms/SIR92 Mailing Lists/USENET News Groups: None User Comments: None See A Screen Shot? (Not Yet)

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