Hindered molecular reorientation of lithium ion doped succinonitrile in the terahertz range
The THz range permittivity of succinonitrile exhibits Debye-like behavior in its plastic-crystal phase, with a characteristic Cole-Cole relaxation time of 65ps ±17ps which increases considerably in the presence of ionic dopants.
Relaxation kinetics of the plastic crystal succinonitrile
The relaxation kinetics of the optical Kerr effect of succinonitrile [${(\mathrm{C}{\mathrm{H}}_{2}\mathrm{C}\mathrm{N})}_{2}$] is measured in the liquid and plastic-crystal phases. The Kerr intensity decay profile of the plastic crystal indicates that more than one relaxation mechanism is operative. The temperature-dependence study of succinonitrile's relaxation time in the plastic-crystal phase yields an activation energy of 2.6 kcal/mole.
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