Lutskii, A. E. published the artcileInteraction of substituents through aromatic rings connected by a bridge group, Recommanded Product: Bis(4-nitrophenyl)amine, the publication is Zhurnal Obshchei Khimii (1965), 35(12), 2083-90, database is CAplus.
Detailed examination of the absorption spectra was made of ArZArAr’ compounds where Ar groups were C6H4Y groups containing as p-substituents such groups as Cl, HO, MeO, NH2, NO2, NMe2, while Z were bridge units such as CH:CH, CH:CHC6H4CH:CH-p, S, NH, CH2, Cú·C, or I+ (iodonium salts). It was shown that in such bridged compounds in the absence of Z bridge groups containing electrons and during optical excitation, there is an absence of charge transfer between the functional groups present in the Ar groups; the absorption bands contain only electron transitions between levels characteristic of functional groups of the individual Ar groups sep.
Zhurnal Obshchei Khimii published new progress about 1821-27-8. 1821-27-8 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Amine,Benzene, name is Bis(4-nitrophenyl)amine, and the molecular formula is C12H9N3O4, Recommanded Product: Bis(4-nitrophenyl)amine.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia