The dynamics of the intramolecular and orientational motions of pinacyanol |
| |
| Affiliation: | 1. Clinic of Orthopaedics and Traumatology, Department of Surgery, Kantonsspital, Winterthur, Switzerland;2. School of Engineering, ZHAW Zurich University of Applied Sciences, Winterthur, Switzerland;3. Twin Cities Orthopedics, Edina, Minnesota, U.S.A.;1. State Key Laboratory of Coal Mine Safety Technology, China Coal Technology & Engineering Group Shenyang Research Institute, Shenfu Demonstration Zone 113122, China;2. School of Civil Engineering, Shenyang Jianzhu University, Middle Hunnan Road, Shenyang 110168, China;3. School of Civil Engineering, Tianjin University, Weijin Road, Tianjin 300072, China;1. Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, 999077, Hong Kong Special Administrative Region;2. School of Information and Electronics, MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, Beijing Institute of Technology, Beiing 100081, China |
| |
| Abstract: | The influence of viscosity on the electronic relaxation of pinacyanol in alcoholic solutions has been determined by recording, with picosecond and nanosecond resolution, the fluorescence decay at various temperatures. The results are interpreted with the aid of a model of electronic relaxation implying a molecular conformational change with no internal potential barrier and with a Boltzmann equilibrium distribution of the initial configuration. Furthermore, fluorescence depolarization analysis indicates that the reorientational relaxation of the molecule takes place on a time scale much greater than that characterizing the intramolecular geometrical change. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
