BEHAVIOR OF THE ROTATIONAL DIFFUSION TENSOR OF TETRACENE UNDER SUBSLIP CONDITIONS

被引：21

作者：

WIRTH, MJ

CHOU, SH

机构：

[1] Department of Chemistry and Biochemistry, University of Delaware, Newark

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1991年 / 95卷 / 04期

关键词：

D O I：

10.1021/j100157a054

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The fluorescence anisotropy decays of tetracene in 1-butanol, 1-octanol, and 1-dodecanol were measured at several temperatures by using frequency domain spectroscopy. Subslip rotational diffusion is observed. The double-exponential anisotropy decays were analyzed to determine the components, D(x), D(y), and D(z), of the rotational diffusion tensor. The relative values of these components vary with temperature, indicating nonhydrodynamic rotational diffusion. Subslip behavior is found to be associated with a value of D(y)/D that is significantly larger than that predicted from hydrodynamics. The subslip phenomenon is interpreted as being a consequence of solvent structure.

引用

页码：1786 / 1789

页数：4

共 28 条

[1] MOLECULAR-STRUCTURE AND ORIENTATIONAL ORDER EFFECTS IN ENTHALPIES AND HEAT-CAPACITIES OF SOLUTE TRANSFER INTO N-HEXADECANE .2. CYCLIC AND AROMATIC SOLUTES [J].