Applications of High Pressure Dynamic NMR

The effects of temperature and pressure on the conformational isomerization of 1,1-difluorocyclohexane in solution have been studied using $\sp $F FT-NMR spectroscopy. The pressure dependence of the isomerization of 1,1-difluorcyclohexane in acetone-d$\sb6$, n-pentane and methylcyclohexane compared to the pressure dependence of the isomerization of cyclohexane in the same solvents indicates that intramolecular effects cause 1,1-difluorocyclohexane to isomerize as if it is in the diffusive limit region. This diffusive limit behavior is observed in all three solvents. Dielectric friction if present is not as important of an energy transfer mechanism as collisions for the 1,1-difluorocyclohexane reaction system.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Chemistry

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2014

Author dc:creator

• Ashcroft, Joseph Samuel

Contributors dc:contributor

• Jonas, Jiri

• Chemistry, Physical

Identifier

(UMI)AAI8802980

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/70383