Table 2. Fluorescence Lifetimes of 1 upon the Hydrostatic Pressurization in H₂O at Room Temperature^a.

pressure (MPa)	τ1 (ns)	A1	τ2 (ns)	A2	χ2
40	0.42	0.93	3.2	0.07	1.1
80	0.40	0.92	3.0	0.08	1.0
120	0.39	0.92	2.8	0.08	1.2
160	0.38	0.92	2.9	0.08	1.2
200	0.36	0.90	2.4	0.10	1.3
240	0.36	0.90	2.3	0.10	0.9
280	0.35	0.90	2.3	0.10	1.1

^aFluorescence lifetime (τ_i) and relative abundance (A_i) of each excited species, determined by the single-photon counting method in nondegassed solution; [1] = 87.9 μM, λ_em 525 nm.