Redox Potentials of Visible Light Photoredox Catalysts

Metal Complex Calalysts

Chemical Structure	Product Name	Product No.	Redox Potentials / V vs. SCE in CH3CN		Reference
	Ir(dF(CF3)ppy)2(d(CF3)bpy)]PF6	B6451	PC*/PC−	+1.68	1)
			PC+/PC	+1.94
			PC/PC−	−0.69
			PC+/PC*	−0.43
	Ir[dF(CF3)ppy]2(bpy)PF6	B6161	PC*/PC−	+1.32	2)
			PC+/PC	+1.69
			PC/PC−	−1.37
			PC+/PC*	−1.00
	[Ir[dF(CF3)ppy]2(dtbbpy)]PF6	D5817	PC*/PC−	+1.21	2)
			PC+/PC	+1.69
			PC/PC−	−1.37
			PC+/PC*	−0.89
	[Ir(dF(Me)ppy)2(dtbbpy)]PF6	B6254	PC*/PC−	+0.99	3)
			PC/PC−	−1.41
	[Ir(ppy)2(dtbbpy)]PF6	D4887	PC*/PC−	+0.66	2)
			PC+/PC	+1.21
			PC/PC−	−1.51
			PC+/PC*	−0.96
	Ir(ppy)3 Ir(ppy)3 (purified by sublimation)	T3716 T1946	PC*/PC−	+0.31	4)
			PC+/PC	+0.77
			PC/PC−	−2.19
			PC+/PC*	−1.73
	Ru(bpy)3(PF6)2	T3435	PC*/PC−	+0.77	4)
			PC+/PC	+1.29
	Ru(bpy)3Cl2 Hexahydrate	T1655	PC/PC−	−1.33
			PC+/PC*	−0.81
	[Ru(phen)3](PF6)2	T3208	PC*/PC−	+0.82	4)
			PC+/PC	+1.26
			PC/PC−	−1.36
			PC+/PC*	−0.87

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Organic Catalysts

Chemical Structure	Product Name	Product No.	Redox Potentials / V vs. SCE in CH3CN		Reference
	peri-Xanthenoxanthene	X0083	PC•+/PC	+0.82	5)
			PC•+/PC*	−1.76
	10-Phenylphenothiazine (= PTH)	P2470	PC•+/PC−	+0.68	6)
			PC•+/PC*	−2.1 −1.7(T)
	9-Mesityl-10-methylacridinium Perchlorate	M1774	PC+*/PC•	+2.06	7)
			PC+/PC•	−0.57
	Eosin Y	T0035	PC*/PC•−	+0.83	6)
			PC•+/PC	+0.78
			PC/PC•−	−1.06
			PC•+/PC*	−1.11
	2,4,6-Triphenylpyrylium Tetrafluoroborate	T3968	PC+*/PC•	+2.3	7)
			PC+/PC•	−0.35

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References

• 1) Catalytic Carbocation Generation Enabled by the Mesolytic Cleavage of Alkoxyamine Radical Cations
  • Q. Zhu, E. C. Gentry, R. R. Knowles, Angew. Chem. Int. Ed. 2016, 55, 9969.
• 2) Principles and Applications of Photoredox Catalysis:Trifluoromethylation and Beyond
  • T. Koike, M. Akita, Inorg. Chem. Front. 2014, 1, 562.
• 3) Photocatalytic Generation of Aminium Radical Cations for C–N Bond Formation
  • J. M. Ganley, P. R. D. Murray, R. R. Knowles, ACS Catal. 2020, 10, 11712.
• 4) Visible Light Photoredox Catalysis with Transition Metal Complexes: Applications in Organic Synthesis
  • C. K. Prier, D.A. Rankic, D.W. MacMillan, Chem. Rev. 2013, 113, 5322.
• 5) Metal-free atom transfer radical polymerization with ppm catalyst loading under sunlight
  • Q. Ma, J. Song, X. Zhang, Y. Jiang, L. Ji, S. Liao, Nat. Commun. 2021, 12, 429.
• 6) The advent and development of organophotoredox catalysis
  • T. Bortolato, S. Cuadros, G. Simionato, L. Dell’Amico, Chem. Commun. 2022, 58, 1263.
• 7) MacMillan lab's photocatalysts chart
  • https://macmillan.princeton.edu/wp-content/uploads/Merck-Photocatalysis-Chart.pdf

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Related Product Category Page

• Visible Light Photoredox Catalysts

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