✦ LIBER ✦
Molecular dynamics studied by transient esr nutation spectroscopy of photoexcited triplet states: Chlorophyll a in liquid crystalline matrix
✍ Scribed by Jürgen Fessmann; Norbert Rösch; Ernst Ohmes; Gerd Kothe
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 507 KB
- Volume
- 152
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
Molecular order and dynamics of chlorophyll a triplets in liquid crystals are studied by transient ESR following pulsed laser excitation. The time evolution of the transverse magnetization is monitored at various static and microwave magnetic fields. Analysis ofthc ESR transients isachicved by employing a relaxation model based on the stochastic Liouville equation. Computer simulations provide the orientational order parameters and motional correlation times varying from lo-" to lo-' s.