Work

Orientational diffusion of n -alkyl cyanides

Year: 2005

Type: article

Abstract: Ultrafast optical Kerr effect spectroscopy has been used to study the temperature-dependent orientational dynamics of a series of nitriles with n -alkyl chains ranging from one to 11 carbons in length. In all cases the orientational diffusion is found to be described by a single-exponential decay. Analysis of the orientational correlation times using the Debye–Stokes–Einstein equation suggests that the molecules adopt extended configurations and reorient as rigid rods. The liquids with shorter alkyl chains undergo an apparent ordering transition as they are cooled.

Source: Journal of Physics Condensed Matter

DOI: 10.1088/0953-8984/17/49/007

Authors: Xiang Zhu, Richard A Farrer, Qin Zhong, John T Fourkas

Institutions: Boston College, University of Maryland, College Park

Language: English

Topic: Material Dynamics and Properties

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: bronze

Funders: National Science Foundation, Division of Chemistry

Award: Nonlinear-Optical Spectroscopy and Microscopy of Confined Liquids