4,4′′-Diiodo-p-terphenyl (CAS 19053-14-6)

4,4′′-Diiodo-p-terphenyl is a compound utilized in the field of organic electronics and material science due to its extended conjugated system and the presence of heavy halogen atoms. It is particularly studied for its application in the construction of organic light-emitting diodes (OLEDs), where the iodine atoms can influence the electronic properties of the material. The compound serves as a useful precursor in the synthesis of more complex organic semiconductors when incorporated into polymer chains or small molecules. In addition, 4,4′′-Diiodo-p-terphenyl is of interest in crystal engineering research, as the iodine atoms can participate in halogen bonding, which is an important non-covalent interaction for directing the assembly of molecular crystals. Studies also examine how it can be employed as a starting material for the synthesis of advanced organic conductors and as a heavy-atom derivative for X-ray crystallography to determine the structure of related organic compounds.