Angular distribution of bromine atomic photofragment in oriented 2-bromobutane via hexapole state selector

摘要

In this work, an asymmetric top molecule 2-bromobutane has been successfully oriented by using hexapole state selector combined with orientation field, followed by detection of the bromine atomic photofragment distribution in the photolysis. The photofragment is produced in both the ground Br (~2P_(3/2)) and the excited Br (~2P_(1/2)) electronic states and both channels are studied by the slice imaging technique, revealing new features in the stereodynamic vectorial properties with respect to previous investigations on non-oriented molecules.