X-ray Crystallography Laboratory

Dept. of Chemistry & Biochemistry

X-ray Crystallography Lab WordPress pages

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Tirith Web File Server

Select your research group directory from the drop down menu.

If you cannot access your files, send email to gpyap@udel.edu with your login and preferred password.


RAID information

The structure data on Tirith webserver are located on a four-slice redundant array of hard drives and backed-up to another RAID located in the department server room. This was implemented to introduce fault tolerance to disk crashes. Nevertheless we continue to encourage users to download and back up their data. The most important files are the CIF, RES and HKL. The most recent version of the crystal suite software, SHELX-2015, incorporates the RES and HKL files into the CIF, in which case the CIF alone is sufficient.


Mercury is an excellent and free visualization program for Windows and for Mac OSX developed by the good folks that create the Cambridge Structural Database. This is particularly useful for examining extended structures with H-bonding for example.

If you cannot access your group files, please send an email message to gpyap@udel.edu with your group code, login name, and preferred password. For security reasons, please select NEW passwords.

updated Feb 19, 2024