The synthesis of this compound was done using diethylammonium hydrochloride and copper (II) chloride as outlined by Michlel J. M. Van Oort.(11) The resulting compound formed green crystals, which were filtered out of the remaining isopropyl alcohol and dried in a desiccator for two weeks. (The literature only suggested drying them overnight before analysis.) The compound was stored in a desiccator with several other not-yet dry compounds, and during this time some of the crystals discolored to a darker/browner green. These crystals were presumed to be contaminated, and they were physically separated from the rest with a spatula. It was suspected that the compound might have still been somewhat contaminated though because it was a somewhat darker color than it should have been, and had a pasty consistency instead of being powdery.