Table 2.

Photophysical parameters of the mannose‐labelled tridecafullerenes 11–13 under study and their corresponding hexakis‐adduct structural precursors 6 and 7.^[a]

Compound	λemmax [nm][b]	τS [ns] (% amplitude)[c]			τ${}_{\mathrm{T}{}_0}$ [μs][d]	τTair [μs][e]	kqT${}_{\mathrm{O}{}_2}$ [M−1 s−1][f]	P T ${}_{\mathrm{O}{}_2}$ [g]	Φ Δ [h]	τΔ [μs][i]
		τ 1	τ 2	τ SM [j]
6	652	1.0 (77)	3.1 (23)	1.5	50	2.7	1.30×109	0.95	0.11	66.2
11	590	0.5 (74)	2.7 (26)	1.1	64	4.2	0.82×109	0.93	0.02	63.5
7	635	1.1 (84)	4.1 (16)	1.6	53	4.4	0.77×109	0.92	0.13	63.0
12	616	0.5 (66)	3.0 (34)	1.3	110	9.1	0.37×109	0.92	0.05	64.6 3.7[l]
13	518	0.2 (97)	2.5 (3)	0.22	τ1 30 000[k] τ2 28 0000[k] τTM 93 000[j]	0.42	8.50×109	0.99	0.07	3.2[l]

[a] PBS aqueous solution, pH 7.4. [b] Wavelength uncertainty ±10 nm. [c] Singlet excited state lifetime, biexponential fitting of the time‐dependent fluorescence intensity decay profiles was usually required (I _F(t)=A+ΣB _i×e${}^{(-t/\tau {}_i)}$ , i=1, 2) where B _i is the corresponding preexponential factor related to signal amplitude and τ_i is the discrete lifetime component. Uncertainty ±10 %. [d] Triplet excited state lifetime in the absence of quencher. Ar‐purged deuterated PBS solution. Uncertainty ±10 %. [e] Triplet excited state lifetime in the presence of O₂ quencher. Air‐equilibrated d‐PBS solution. Uncertainty ±10 %. [f] Dynamic bimolecular quenching rate constant of triplet excited states by O₂. Uncertainty ±15 %. [g] Probability of triplet excited state quenching by O₂ under air‐equilibrated conditions. P ^T ${}_{\mathrm{O}{}_2}$ =1−(τ ${}_{\mathrm{T}{}_{\mathrm{air}}}$ /τ ${}_{\mathrm{T}{}_0}$ ). [h] Singlet oxygen production quantum yield. Uncertainty ±10 %. [i] Singlet oxygen phosphorescence lifetime measured in d‐PBS solution with an optical density ≤0.1 at 355 nm (dye concentrations in the 10⁻⁵–10⁻⁶ M range) in very good agreement with the expected ¹O₂ lifetime in deuterium oxide, 64.4 μs.^[20] Uncertainty ±3 %. [j] τ _M is the preexponential weighted mean lifetime (τ _M=ΣB_i ×τ_i /ΣB_i ), where τ _SM and τ _TM stand for the mean lifetime of the singlet and triplet excited states, respectively.^[21] Uncertainty ±10 %. [k] Biexponential fitting of the triplet excited state decay profile was required. [l] Singlet oxygen lifetime in PBS solution.