Raman spectra have been obtained from liquid methylcyclohexane over a range of temperatures (–64°C + 64°C) and pressures (1 bar to 5 kbar). Comparison of the pattern of band intensity changes as a function of temperature and pressure indicates that an increase in pressure shifts the conformational equilibrium in the liquid to favor the equatorial form.
Derek J. Gardiner, Gurmail S. Bassi, Gerry D. Galvin, Anthony C. Gorvin, and Brian P. Straughan, "Raman Spectroscopic Evidence of Pressure-Induced Conformational Changes in Liquid Methylcyclohexane," Appl. Spectrosc. 38, 313-317 (1984)