TABLE 2.

Optical properties of compounds 11–13, 11B–13B.

Comp	λabs	ε	λem	λex	Stokes shift	Φ F
	(nm)	(M−1cm−1)	(nm)	(nm)	(nm)
11	404	5,980	470	377	93	0.02 a
	400	5,940	496	375	121	0.01 b
12	422	5,960	482	391	91	0.02 a
	422	5,670	517	396	121	0.01 b
13	383	7,100	494	357	137	0.02 a
	383	6,660	523	357	166	0.01 b
11B	404	4,530	586	457	129	0.58 a
	403	4,120	601	447	154	0.16 b
12B	423	6,180	616	482	134	0.93 a
	426	5,110	641	482	159	0.22 b
13B	383	3,730	618	430	188	0.46 a
	385	3,490	646	421	225	0.10 b

^aData measured in EtOAc.

^bData measured in CH₃CN.