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. Author manuscript; available in PMC: 2014 Dec 19.
Published in final edited form as: Chem Biol. 2013 Dec 12;20(12):1536–1546. doi: 10.1016/j.chembiol.2013.11.005

Table 1.

Selected photophysical and photochemical properties of caged 5-HTs.

Caged 5-HT λmax
(nm)		 ε
(M−1 cm−1)		 Q u Sensitivity
(Qu × ε)		 δu
(GM)		 τdark
(h)
O-CNB-5HT 280 800 at 337 nm 0.03 24 N.R. N.R.
[Ru(bpy)2(5HT)2]2+ 488 9,880 0.023 227 N.R. N.R.
BHQ-OPh 369 3,200 0.19 608 0.56 95
BHQ-O-5HT 368 2,000 0.30 600 0.50 260
BHQ-N-5HT 370 2,100 0.10 210 0.42 300

UV-Vis spectra (Figure S3) and photolysis data on BHQ-OPh (Figure S1), BHQ-O-5HT, andBHQ-N-5HT were acquired in KMOPS buffer, pH 7.2. Absolute values of δu are estimated to beaccurate within a factor of two (Furuta, et al., 1999), but the relative magnitudes of the values areconsistent when measured on the same apparatus as is the case here.

Data for N-CNB-5HT, NPE-O-5HT, and NPEC-N-5HT were not reported.

N.R. (not reported)

GM = 10−50 (cm4 s)/photon