Table 1.

Changes of the difference dipole moment—Δμ (in debye)—along the photoisomerization channel

Structure	FC	I	150°	TS (140°)	CI	K
Δμ	12.3	9.0	22.1	20.3	20.0	2.6

Δμ is calculated as the difference of the initial ground state bR dipole and the current transient dipole at each reported structure (this is the dipole computed on S₁ for all the structures but K, where it is referred back to the ground state).