abstract |
A compound comprising a tetrahalobenzamidazolebenzene or a bis(tetrahalophenyl)biphenylbisimidazole of the alternative following formulas or dimers thereof n nwherein each of R 1 , R 2 , R 3 , R 4 , and R 5 are the same or different and are independently selected from the group comprising hydrogen, alkyl, aryl, and halogen. |