This article is unavailable. Silver, J., Fern, G.R., Miller, J.R., McCammon, C.A., Evans, D.J., Jeffery Leigh, G. Effects of temperature and pressure on the Mössbauer spectra of models for the [4Fe-4S]2+ clusters of iron-sulfur proteins and the structure of [PPh4]2[Fe4S4(SCH2CO2C2H5)4], (1999) Inorg. Chem., 38(19), 4256-4261. If you wish to obtain a copy please contact the author below: George.Fern@brunel.ac.uk