《Design, Synthesis, and Electrochromic Behaviors of Donor-Acceptor-Donor type Triphenylamine-iso-Naphthalenediimide Derivatives》 was written by Nad, Subhra; Malik, Sudip. Quality Control of 3,5-Dibromoaniline And the article was included in ChemElectroChem in 2020. The article conveys some information:
To investigate the influence of number of electropolymerizable group of the donor side on electrochromic behaviors, three donor-acceptor-donor type monomers containing isonaphthalene diimide as acceptor core and electro-polymerizable tri-Ph amine (TPA) as the donor moiety have been designed and successfully synthesized via imidization of isonaphthalene anhydride with corresponding TPA derivatives DFT calculations have predicted that electron d. of HOMO is centralized on peripheral TPA unit and the same of LUMO is localized on central moiety. Polymer films from three monomers are electrodeposited on ITO/glass electrodes and have been characterized by cyclic voltammetry. Three polymers show multi electrochromic properties in a reversible manner with the color change from colorless to brown to blue at low working potential. Spectro-electrochem. studies of these films have revealed the high optical contrast (51.4%, 69.8%, 84.5% resp.) of these polymers with the very fast bleaching (less than 1 s) and coloration (less than 2 s) time with very high coloration efficiencies. The electro switching stability has been performed up to 500 cycles and activity loses only 10% after 3000 s. To demonstrate the potentials of these derivatives, solid-state devices having these derivatives provide electrochromism in a very nice way without taking any protective precaution from air/moisture and its spectro-electrochem. behaviors have been also explored. In the part of experimental materials, we found many familiar compounds, such as 3,5-Dibromoaniline(cas: 626-40-4Quality Control of 3,5-Dibromoaniline)
3,5-Dibromoaniline(cas: 626-40-4) belongs to anime. Hydrogen peroxide (H2O2) and peroxy acids generally add an oxygen atom to the nitrogen of amines. With primary amines, this step is normally followed by further oxidation, leading to nitroso compounds, RNO, or nitro compounds, RNO2. Secondary amines are converted to hydroxylamines, R2NOH, and tertiary amines to amine oxides, R3NO.Quality Control of 3,5-Dibromoaniline
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary