Table 2.

Spectral properties of BODIPYs in dichloromethane solution at room temperature. The fluorescence quantum yields (λ_exc=490 nm) were calculated by using, rhodamine 6G (0.80 in ethanol) as the reference.

BODIPY	Absorbance λmax [nm]	Emission λmax [nm]	Φf	Log ε [M−1cm−1]
4a	503	512	0.51	4.79
4b	527	542	0.33	4.50
5a	487	493	0.99	4.77
5b	508	518	0.67	4.44
11	499	505	0.83	4.75
12	499	507	0.32	4.20
13	487	493	0.57	4.95
14	491	499	0.99	4.71
15	487	496	1.00	4.67
16	539	553	0.04	4.69
17	529	542	0.09	4.23
18	501	511	0.62	4.76
19	497	508	0.77	4.82
20	505	511	0.00	4.67
21	513	522	0.14	4.61
22	544	556	0.29	4.57
23	545	556	0.13	4.63
24	513	521	0.10	4.73
25	514	521	0.05	4.87