Activation energy of the two-proton phototautomerism in 7-azaindole dimer and its medium-dependence.
A photophysical analysis of 10(-4) M solutions of 7-azaindole in hydrocarbon solvents including 2-methylbutane, 3-methylpentane, ethylcyclohexane, decalin, and squalane revealed that the viability of the two-proton phototautomerism in its dimer is clearly medium-dependent. However, in all media studied, a small tunneling contribution in the photoinduced double proton transfer continues to exist at low temperatures.
Catalán
Javier
J
Departamento de Química Física Aplicada, C-II, Lab 203, Universidad Autonoma de Madrid, Cantoblanco, 28049 Madrid, Spain. javier.catalan@uam.es
D006838:Hydrocarbons / Q000737:chemistry*; D007211:Indoles / Q000737:chemistry*; D008027:Light; D011522:Protons; D012997:Solvents / Q000737:chemistry; D013237:Stereoisomerism; D013816:Thermodynamics
C023422:7-azaindole dimer; D006838:Hydrocarbons; D007211:Indoles; D011522:Protons; D012997:Solvents