Preparation and properties of new π-conjugated poly(quinoxaline-5,8-diyl) and poly(2,3-diethylquinoxaline-5,8-diyl). Enhancement of electron-accepting properties of poly(arylenes) by introduction of imine nitrogen was written by Kanbara, Takaki;Yamamoto, Takakazu. And the article was included in Macromolecules in 1993.Computed Properties of C8H4Br2N2 This article mentions the following:
Reactions of 5,8-dibromoquinoxaline and 5,8-dibromo-2,3-diethylquinoxaline with a 0-valent Ni complex give poly(quinoxaline-5,8-diyl) (I) and poly(2,3-diethylquinoxaline-5,8-diyl), resp. These polymers are easily converted into elec. conducting materials by chem. and electrochem. reductions Comparison of redox potentials for the n-doping and undoping of I with those of poly(naphthalene-1,4-diyl) and poly(quinoline-5,8-diyl) indicates that introduction of imine N in the recurring naphthalene-like arylene ring leads to the enhancement of the electron-accepting properties of the poly(arylene)s with change of the reducing potential by about 0.35 V per each of the imine N. In the experiment, the researchers used many compounds, for example, 5,8-Dibromoquinoxaline (cas: 148231-12-3Computed Properties of C8H4Br2N2).
5,8-Dibromoquinoxaline (cas: 148231-12-3) belongs to pyrazine derivatives. Pyrazines are part of several biologically active polycyclic compounds; examples are quinoxalines, phenazines; and the bio-luminescent natural products pteridines, flavins, and their derivatives. Pyrazine and a variety of alkylpyrazines are flavor and aroma compounds found in baked and roasted goods. Tetramethylpyrazine (also known as ligustrazine) is reported to scavenge superoxide anion and decrease nitric oxide production in human Granulocytes.Computed Properties of C8H4Br2N2