Table 1.

Half-life and photostationary states of EBAB 1 and derivatives.

compound	half life [h]	PSS 405 nm % trans	PSS 520 nm % trans
EBAB 1	4.5a	92%	<1%
3,3’-diamino-EBAB 4	74b	34%	<1%
3,3’-diacetamido-EBAB 5	46b	54%	<1%
4,4’-diacetamido-EBAB	4.8c	70%	<1%

^a300 K, n-hexane [6]; ^b300 K, MeCN; ^c293 K, DMSO [9].