Table 1.

Optical properties of TAPPs 6 and 7.

Cmpd.	Solvent	λabs, nm	ε·10−3, M−1·cm−1	ΔS, cm−1	λem, nm	Φfl
6a	C6H12	447; 469	48; 44	1160	496, 525	0.96
	CCl4	458	45	3300	540	0.93
	toluene	465	42	3400	552; 569	0.70
	dioxane	464	44	4600	590	0.25
	THF	471	44	4800	610	0.03
	CH2Cl2	477	41		nd
	CH3CN	467	40		nd
	DMSO	483	35		nd
7b	C6H12	371	31	2600	411	0.67
	toluene	375	38	2800	419	0.85
	dioxane	374	42	3000	421	0.86
	THF	376	41	2900	422	0.81
	CH2Cl2	373	39	3200	424	0.85
	CH3CN	369	39	3700	428	0.80
	DMSO	377	38	3700	438	0.87

^aDetermined with fluorescein in NaOH (0.01M) (Φ_fl = 0.9);

^bDetermined with 9,10-diphenylanthracene in cyclohexane as a standard (Φ_fl = 0.7).^[18]

nd – fluorescence spectra were not measured due to very low S/N ratio