Aromatic and Antiaromatic Pathways in Triphyrin(2.1.1) Annelated with Benzo[b]heterocycles was written by Bartkowski, Krzysztof;Dimitrova, Maria;Chmielewski, Piotr J.;Sundholm, Dage;Pawlicki, Milosz. And the article was included in Chemistry – A European Journal in 2019.Formula: C8H4Br2S This article mentions the following:
Understanding of the aromatic properties and magnetically induced current densities of highly conjugated chromophores is important when designing mols. with strongly delocalized electronic structure. Linear extension of the triphyrin(2.1.1) skeleton with an annelated benzo[b]heterocycle fragment modifies the aromatic character by extending the electron delocalization pathway. Two-electron reduction leads to an antiarom. triphyrin(2.1.1) ring and an aromatic benzo[b]heterocycle subunit. Current-d. calculations provide detailed information about the observed pathways and their strengths. In the experiment, the researchers used many compounds, for example, 2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7Formula: C8H4Br2S).
2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7) belongs to benzothiophene derivatives. Benzothiophene finds use in research as a starting material for the synthesis of larger, usually bioactive structures. Due to its aromaticity, thiophenes do not exhibit the same properties as conventional thioethers.Formula: C8H4Br2S
Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem