Related Experiment Video
Updated: Mar 29, 2026

Facile Preparation of 4-Substituted Quinazoline Derivatives
Published on: February 15, 2016
Density Functional Study of 2-[(R-Phenyl)amine]-1,4-naphthalenediones
Z Gómez-Sandoval1, P Calaminici1, A M Köster1
1Departamento de Química, CINVESTAV, Avenida Instituto Politécnico Nacional 2508, A.P. 14-740 México D.F. 07000, México, Facultad de Química, Departamentos de Bioquímica y Fisicoquímica, Universidad Nacional Autónoma de México, Ciudad Universitaria, México D.F. 04510, México, and Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, México D.F. 04510, México.
Abstract:
The molecular and electronic structures of a series of 2-[(R-phenyl)amine]-1,4-naphthalenediones (R = m-Me, p-Me, m-Et, p-CF3, p-Hex, p-Et, m-F, m-Cl, p-OMe, p-COMe, p-Bu, m-COOH, p-Cl, p-COOH, p-Br, m-NO2, m-CN, and p-NO2) and their anions are investigated in the framework of density functional theory. The calculations are of all-electron type using a double zeta valence polarization basis set optimized for density functional theory methods. The theoretical study shows that all compounds are nonplanar. The nonplanarity can be rationalized in terms of occupied π orbitals. A linear correlation between the measured half-wave potentials and the calculated gas-phase electron affinities is found. It holds for local as well as generalized gradient corrected functionals. Structural parameters, harmonic vibrational frequencies, and adiabatic and vertical electron affinities as well as orbital and spin density plots of the studied compounds are presented.
Related Concept Videos
Oxidation of Phenols to Quinones
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
ortho–para-Directing Activators: –CH3, –OH, –⁠NH2, –OCH3
meta-Directing Deactivators: –NO2, –CN, –CHO, –⁠CO2R, –COR, –CO2H
Radical Chain-Growth Polymerization: Overview
Pharmacodynamic Models: Linear Concentration–Effect Model
Basicity of Aromatic Amines

