Table 1.

Photophysical data for xRNA triols in water.

xRNA triol	λmax abs.a (nm)	λmax ex. (nm)	λmax em. (nm)	e260 (L/mol·cm)	emax (L/mol·cm)	Fb	brightnessc (L/mol·cm)	t (ns)
rxA	331	331	373	18,500	10,500	0.44	4,600	3.6
rxG	326	337	411	4,900	4,500	0.40	1,800	7.3
rxC	322	322	379	5,300	4,500	0.48	2,200	4.2
rxU	311	311	369	1,000	3,900	0.27	1,050	2.9

^along l maximum

^berror ≤ ± 0.03

^cbrightness calculated as e_max × F.