Table 1.

Summary of absorption and PL peaks, Stokes shifts, PL and photoisomerization quantum yields (QYs)

Compound	Solvent	Abs. peak (nm)	PL peak (nm)	Stokes shift (eV)	PLQY (%)	Photo-isomerization QY (%)
Motor	Toluene	389	–	–	${~10}^{-4}$a	18b
	Acetone	386	–	–		12b
BODIPY	Toluene	500	510	0.050	95c	–
	Acetone	493	502	0.053	–	–
BODIPY/Motor	Toluene	508	519	0.055	54	12 (3)d
	Acetone	503	513	0.051	2.6	22 (4)d

The excitation wavelengths for the measurements of the PL and photoisomerization QYs were 488 nm and 395 nm, respectively.

^aAdapted from ref. 35.

^bMeasured with a 365 nm excitation wavelength.

^cAdapted from ref. 48.

^dQYs of photoisomerization for the stable → metastable transformation. The numbers in parentheses are the photoisomerization QYs measured with a LED light source with the output wavelength at 535 nm and a full width at half maximum (FWHM) of ~24 nm.