Table 1.

Spectroscopic properties of BTP.

Solvent	DCM	CHCl3	ACN	DMSO	DMF	EtOH	MeOH	Water
λabs (nm)	540	530	495	490	491	498	496	480
λem (nm)	638	640	643	645	646	639	642	644
∆λ (nm)	98	110	153	155	155	143	144	164
ϕfl	0.33	0.29	0.33	0.68	0.40	0.24	0.28	<0.005
ꜫ (M−1cm−1)	37,023	32,456	31,482	36,470	35,700	32,428	29,647	23,162
τ (ns)	0.35	0.27	0.34	0.58	0.51	0.36	0.29	0.29 (95.65%) 1.28 (4.35%)