ne group ##STR21## may be substituted in either a meta or para position with respect to R.sub.1, and wherein:R.sub.1 is generally a carbon chain with or without ether bonds to the benzene rings;R.sub.2 and R.sub.3 can be hydrogen, chlorine, bromine, iodine, hydroxyl group, alkyl, or other group; and ##STR22## represents the benzene ring.Further, it has been found that the following compounds are a