We had to do an experiment involving column chromatography with ferrocene and acetylferrocene. In doing the TLC test, we had to analyze the Rf values from three different solvent systems: 100% hexane, 25% EtOAc/Hex, ande 75% EtOAc/Hex. The Rf values that I obtained for the ferrocene were .3125 for 100% hexane, .0465 for 25% EtOAc/Hex, and .79 for 75% EtOAc/Hex. For the actylferrocene, I got .65 for 100% hexane, .55 for 25% EtOAc/Hex, and .61 for 75% EtOAc/Hex. For two of my fractions, both of which were hexane, I got 0 for all solvent systems for the Rf values. Do these values seem to make sense for anyone that has done this lab before? Also, does the melting point have an impact on high an Rf value will be along with the chemical structure? Finally, I have to determine the solvent system that gave me an "ideal" range of Rf values between .30-.60 and in this case, it looks to be the solvent system of 100% hexane right?