. Author manuscript; available in PMC: 2006 Jul 24.

Published in final edited form as: J Phys Chem B. 2005 Nov 3;109(43):20433–20443. doi: 10.1021/jp0525078

Table 2.

Photophysical data for boron dipyrrins.

Compound	solvent	substituents			τ (ns)	Φ_f	Φ_IC	Φ_ISC	(k_f)^-1 (ns)	(k_ic)^-1 (ns)	(k_isc)^-1 (ns)
Compound	solvent	5	boron	pyrrole	τ (ns)	Φ_f	Φ_IC	Φ_ISC	(k_f)^-1 (ns)	(k_ic)^-1 (ns)	(k_isc)^-1 (ns)
2a	toluene	phenyl	F	H	0.45	0.062	>0.95	<0.05	7.3	<0.6	>5
2aá^b	toluene				0.44	0.053			8.3
2a	PVA				1.2	0.12			11
2b	toluene	t-Buφ	F	H	0.55	0.069	>0.95	<0.05	8.0	<0.6	>5
2b	PVA				1.1	0.10			10
2b	ethyne glycol				0.68	0.045			11
2c	toluene	o-tolyl	F	H	5.8	0.93	<0.07	<0.05	6.2	>70	>100
2c	PVA				6.1	0.90			6.8
2d	toluene	mesityl	F	H	6.6	0.93	<0.07	<0.05	7.1	>70	>100
2d	PVA				6.8	0.89			7.8
2d-Me₂	toluene	mesityl	Me	H	3.7	0.40			9.3
4	toluene	H	F	Me	6.1	0.92	<0.08	<0.05	6.6	>70/	>100
5	toluene	Me	F	Me	5.6	0.93	<0.07	<0.05	6.0	>70	>100
1^a	toluene	b	F	c	0.52	0.058	>0.95	<0.05	9.0	<0.6	>5

TMS-terminated phenylethyne.

methyl groups only at the 1,9-positions (adjacent to pyrrole nitrogens).