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. 2017 Aug 18;2(8):4693–4704. doi: 10.1021/acsomega.7b00535

Table 1. Spectroscopic Properties of 2, 3, 4, and 5.

probe λmax (abs) [nm] ε [L·M–1 cm–1]a λmax (em)b [nm] Stokes shift [nm]
2 325 25 038 386 61
3 334 30 170 420 86
4 335 27 070 483 148
5 337 47 668 415 78
a

Absorption spectra acquired at four different concentrations in methanol (2, 3, and 4 from 50 to 5 μM and 5 from 10 to 2 μM).

b

Excitation wavelength: 330 nm, [probe] = 20 μM.