title: temperature-dependent orientational dynamics of 1,n-dicyano n-alkanes.
abstract: Ultrafast optical Kerr effect spectroscopy has been used to study the temperature-dependent orientational dynamics of 1,n-dicyano n-alkane liquids ranging from dicyanomethane to 1,8-dicyanooctane. The dependence of the reorientational times on temperature and viscosity is consistent with the molecules adopting a largely extended structure in the liquid state, with a preference for gauche conformations at the methylenes bonded to the cyanide groups. The data are also suggestive of temperature-dependent, collective structural rearrangements in these liquids.
authors.affiliation: Department of Chemistry and Biochemistry, Institute for Physical Science and Technology, Maryland NanoCenter, University of Maryland, College Park, MD 20742, USA.
authors.forename: Qin
authors.initials: Q
authors.lastname: Zhong
authors.forename: Xiang
authors.initials: X
authors.lastname: Zhu
authors.forename: John T
authors.initials: JT
authors.lastname: Fourkas