Investigation into the molecular and electronic structures of a newly synthesized o-quinone derivative

Autor: Tetsuji Moriguchi, Sachie Arae, Ryo Irie, Hitoshi Fujimoto, Nobutsugu Hamamoto
Rok vydání: 2019
Předmět:
Zdroj: Chemical Physics. 524:77-84
ISSN: 0301-0104
DOI: 10.1016/j.chemphys.2019.04.033
Popis: We studied on the geometric and electronic structures of a newly synthesized compound, 3-(tert-butyl)dinaphtho[1,2-b;1′,2′-d]furan-12,13-dione (1), having a twisted molecular structure at an o-quinone region in a crystal. The density functional theory (DFT) has been applied to investigate the geometric and electronic structures using the model compound (1H), where a tertiary butyl group of the compound 1 is replaced by a hydrogen atom. The optimized geometry for the model dimer of 1H represented well the twisted molecular structure of 1. The time-dependent DFT method explained the observed optical properties of 1 in a solution and a powdery solid. The DFT calculations also gave a good estimation of the ionization potential and the electron affinity of 1H, explaining a similarity in reduction and a difference in oxidation between 1H and o-benzoquinone. This similarity in the electron affinity was confirmed by measuring a reduction potential of the compound 1 with cyclic voltammetry.
Databáze: OpenAIRE