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CLAYFF 2004 parameter notice
============================

The numerical constants in data/clayff_2004.tsv were independently
transcribed from Tables 1 and 2 and equations 3-7 of:

R. T. Cygan, J.-J. Liang, and A. G. Kalinichev,
"Molecular Models of Hydroxide, Oxyhydroxide, and Clay Phases and the
Development of a General Force Field", Journal of Physical Chemistry B
108 (2004) 1255-1266, DOI 10.1021/jp0363287.

The table is a newly authored, machine-readable transcription of numerical
scientific facts. No article prose, figures, or software source code is
redistributed. The transcription and its comments are licensed
GPL-3.0-or-later by ss0832. The journal article remains under its publisher's
terms and must be cited when these parameters are used in scientific work.

The aqueous-ion rows in the original CLAYFF table cite Smith and Dang,
Koneshan et al., and Aqvist as their underlying sources. See the article for
the complete bibliography and attribution chain.
