Kinetic Studies on Fluorescence Probes Using Synchrotron Radiation

摘要: Many flexible aromatic molecules undergo spontaneous intramolecular rotational relaxation processes in the excited state leading to an energy minimum far away from initial geometry which thus can be termed a photochemical product. Because process occurs entirely state, it is called “adiabatic photoreaction” [1]. An experimentally very well-studied example double-bond twisting of stilbene [2]. In recent years, family Twisted Intramolecular Charge Transfer (TICT) compounds has been developed great extent [3–6]. these compounds, two moieties are linked by single bond, and excited-state towards twisted conformation, coupled with electron transfer (Fig. 4.1). Modern theoretical concepts describe both double bonds one same model, that biradicaloid states [6–8].