1-chloro-2 , 4-dinitrobenzene Ab initio density functional theories (DFT) Amines Amino acids Aprotic solvents Aromatic nucleophilic substitution Aromatization Basis set superposition errors Calculations Continuum mechanics Copyrights Density functional theory Dimer nucleophile mechanisms Dimers Hydrogen Hydrogen bonds Kinetic theory Kinetics Nucleophiles Quantum chemical calculations Quantum chemistry Solvents Specific hydrogen bondings Toluene aprotic solvents aromatic nucleophilic substitution biological amines dimer nucleophile mechanism hydrogen bonding