This file describes the contents of the tarballs and lists compatible versions of the software that they relate to. Structures.tar.gz ----------------- The tarball contains a directory 'Structures', with representative CASTEP input files for the four systems studied, labeled 'ch4', 'nh3', h2o', and 'hf'. The structures correspond to those relaxed using the PBE+TS functional. Software versions ----------------- - CASTEP input files are compatible with CASTEP version 7.0 and later. For information on how to obtain a copy of CASTEP visit: http://www.castep.org - The vibrational calculations were performed using the CAESAR research code. For more information, email bm418 at cam dot ac dot uk