Kinetics of photochemical H-abstraction by 3ππ*-acridine in fluorene single crystals as studied by triplet-triplet absorption

Abstract The decay kinetics of the 3 ππ*-state (T 1 ) of acridine- d 9 in fluorene single crystals is determined as a function of temperature (20 T 3 nπ*-abstraction reactions in disordered systems elucidates further details of the reaction mechanism.