Abstract EPR studies of tris-(di- n-butyldithiocarbamato)Fe(III), with and without a chlorobenzene solvate, were performed from −160°C to room temperature. A line at an approximate g-value of 4.4 was assigned as a S = 5 2 line and its temperature dependent behavior was correlated with solid magnetic moment observations. An additional narrower line was noted in the spectrum of the solvated sample. We associate this line with a second possible high-energy site for the chlorobenzene solvate molecule. A solvate molecule in this site appears to “shut off” the spin-crossover.