(Updated 2001.03.03.) This directory contains Gaussian basis sets for 4-component relativistic molecular calculations. For the moment this consists of a series of dual family sets covering the range K - (118). These are collected in 6 files starting with TCA.2001. The basis sets are described in the article Knut Faegri: Relativistic Gaussian basis sets for the elements K - Uuo. TCA, 105, 252 - 258, 2001. I also have a variety of other basis sets for this type of calculations. I have not yet systematized these for presentation. However, if you have any special interests, please contact me. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! Copyright statement: The material in this directory is made freely ! ! available to interested users. It may not be distributed further ! ! for the purpose of direct economic gains without my express written ! ! consent. ! ! ! ! Any use of this material is at the user's own risk, and I take no ! ! responsibility for problems, errors, failures or damages that might ! ! result from applications involving this material. ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!