Aspects of the Polymorphic Phase Transformation in p-Diiodobenzene

Abstract Interest in solid p-diiodobenzene has focused on the characterization and properties of the material before and after the phase transformation at around 51°C and, more recently, on the nature of the transformation itself. Our initial attention was drawn by the discovery by Schwartz. et al.,1 that the hole carrier mobility of the photoconductive room temperature material drops sharply in the vicinity of 50°C.