. 2023 May 5;88(11):6716–6728. doi: 10.1021/acs.joc.3c00005

Table 3. Quantum Yields of Photodecomposition and Production of Singlet Oxygen and Rate Constants for the Reaction of Cy7 with ¹O₂.

Cy7	solvent	Φ_Δ^a	Φ_dec (10^–4)^b	k_r (10⁷ M^–1 s^–1)^c
1a	methanol	0.0095 ± 0.0005 (0.0089^d)	0.031^d
1b		0.12 ± 0.01 (0.17^d)	0.12 ± 0.02
1c		0.018 ± 0.005	0.047 ± 0.011
1d		0.13 ± 0.01	0.11 ± 0.02
1e		0.16 ± 0.01	0.084 ± 0.010
1f		0.11 ± 0.01	2.3 ± 0.3
1a	PBS	n.d.	2.2^d
1b		n.d.	84^d	6.87 ± 0.17^e
1c		n.d.	63 ± 8^f	5.38 ± 0.1.7^g
1d		n.d.	173 ± 2^f	1.63 ± 0.01^g
1e		0.13 ± 0.01^h	14 ± 2^f	3.48 ± 0.11^h
1f		0.25 ± 0.03^h	8.0 ± 0.3^f	2.86 ± 0.056^h

Quantum yield of singlet oxygen production; n.d. = not determined (compounds are not soluble); determined using 1,3-diphenylisobenzofuran as a ¹O₂ trap and methylene blue as a standard sensitizer.

Quantum yield of photodecomposition (disappearance).

Bimolecular rate constants of the reaction of Cy7 derivatives with singlet oxygen.

Ref (22).

40% DMSO + 60% water.

In water.

70% DMSO + 30% water.

In PBS (pH 7.4, c = 10 mM, I = 100 mM).

Table 3. Quantum Yields of Photodecomposition and Production of Singlet Oxygen and Rate Constants for the Reaction of Cy7 with 1O2.

Table 3. Quantum Yields of Photodecomposition and Production of Singlet Oxygen and Rate Constants for the Reaction of Cy7 with ¹O₂.