Vibrational dynamics of CO stretching in W(CO)6-doped hybrid xerogels from 5 K to room temperature with the CLIO-FEL
| Autor: | Jean-Pierre Boilot, Jean-Michel Ortega, H. Dubost, Michel Broquier, Frederic Chaput, Claudine Crépin, Jean-Pierre Galaup |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
education.field_of_study
Chemistry Dephasing Doping Population Biophysics Analytical chemistry Infrared spectroscopy General Chemistry Atmospheric temperature range 010402 general chemistry Condensed Matter Physics 01 natural sciences Biochemistry Atomic and Molecular Physics and Optics 0104 chemical sciences Molecular vibration 0103 physical sciences 010306 general physics Spectroscopy education Solid solution |
| Zdroj: | Journal of Luminescence. 86:363-370 |
| ISSN: | 0022-2313 |
| DOI: | 10.1016/s0022-2313(00)00194-0 |
| Popis: | One color pump-probe and photon-echo experiments have been performed on the CO stretching mode of W(CO) 6 at about 1982 cm -1 in organo-mineral xerogels. Over the whole temperature range studied, from room temperature to 5 K, the population lifetime T 1 remains constant when the vibrational dephasing time T 2 lengthens slightly. The temperature evolution of the pure dephasing time T * 2 reveals two activation energies corresponding to molecular motions of the guest in the xerogel pore. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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