Fig. 7.

a C₅–C₅′ and C₆–C₆′ distances, b average angles formed between the distances C₅–C₅′ and C₆–C₆′ and the velocities at the atoms C₅ and C₆ at the moment of the ³BR→S ₀ transition for 32 trajectories. c Definition of distances and angles employed in the analysis. The lines across a–c indicate that the next panel is a subset of the data points marked in the box of the previous panel. The green pentagons indicate trajectories undergoing dimerization (color figure online)