Trani11

Trani, F., Scalmani, G., Zheng, G.S., Carnimeo, I., Frisch, M.J., Barone, V., “Time-Dependent Density Functional Tight Binding: New Formulation and Benchmark of Excited States,” J. Chem. Theory Comput. 7 (2011) 3304-3313. DOI: 10.1021/ct200461y