SAL Home OTHERS Chemistry, Biology & Related


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:

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:

Mailing Lists/USENET News Groups:


User Comments:

  • None

See A Screen Shot? (Not Yet)

  SAL Home   |   Other Scientific Fields   |   Chemistry, Biology & Related

Comments? SAL@KachinaTech.COM
Copyright © 1995-2001 by Herng-Jeng Jou
Copyright © 1997-2001 by Kachina Technologies, Inc.
All rights reserved.