화학공학소재연구정보센터
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol.291, 1-9, 1996
Liquid, Glass, and Protein Vibrational Dynamics - Infrared Vibrational Echo Experiments
The vibrational dynamics of polyatomic molecules in polyatomic liquids, glasses and proteins are examined using picosecond infrared vibrational echo experiments and pump-probe experiments as a function of temperature. The vibrational echo experiments measure T-2, the homogenous dephasing time, while the pump-probe experiments measure the vibrational lifetime, T-1, and orientational relaxation dynamics. By combining these measurements, a complete analysis of vibrational dynamics is obtained. Systems studied include tungsten hexacarbonyl in the organic glasses 2-methylpentane, 2-methyltetrahydrofuran, and dibutylphthalate, and wild-type and mutant myoglobin-CO in glycerol/water.