Rhenium(I) trinuclear rings as highly efficient redox photosensitizers for photocatalytic CO2 reduction

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Catalyst

[Re(bpy)(CO)3(MeCN)][PF6] Ru(dtBubpy)(CO)2Cl2

Photosensitizer

Investigation

	cat	cat conc [µM]	PS	PS conc [mM]	solvent A	.	.	λexc [nm]	.	TON CO	.	.	.
1.	[Re(bpy)(CO)3(MeCN)][PF6]	50	Molecule:100878	0.05	DMF			436		27
2.	[Re(bpy)(CO)3(MeCN)][PF6]	50	Molecule:100878	0.05	DMF			436		98
3.	[Re(bpy)(CO)3(MeCN)][PF6]	50	Molecule:100877	0.05	DMF			436		22
4.	[Re(bpy)(CO)3(MeCN)][PF6]	50	Molecule:100877	0.05	DMF			436		71
5.			Molecule:100877	0.05	DMF			436		6
6.			Molecule:100877	0.05	DMF			436		8
7.	[Re(bpy)(CO)3(MeCN)][PF6]	50	Molecule:100879	0.05	DMF			436		20
8.	[Re(bpy)(CO)3(MeCN)][PF6]	50	Molecule:100879	0.05	DMF			436		32
9.	[Re(bpy)(CO)3(MeCN)][PF6]	50	Molecule:100880	0.05	DMF			436		11
10.	[Re(bpy)(CO)3(MeCN)][PF6]	50	Molecule:100880	0.05	DMF			436		48

Investigation-Name: Table 1ExportRefresh

	cat	cat conc [µM]	PS	PS conc [mM]	e-D	e-D conc [M]	solvent A	.	.	λexc [nm]	.	TON CO	TON H2	TON HCOOH	.	.	.
1.	Ru(dtBubpy)(CO)2Cl2	50	Molecule:100877	0.05			DMF			436		20	72	290
2.	Ru(dtBubpy)(CO)2Cl2	50	Molecule:100877	0.05	BI(OH)H	0.03	DMF			436		16	49	280
3.	[Mn(dtBubpy)(CO)3(MeCN)][PF6]	50	Molecule:100877	0.05			DMF			436		32		85
4.	[Mn(dtBubpy)(CO)3(MeCN)][PF6]	50	Molecule:100877	0.05	BI(OH)H	0.03	DMF			436		80		60

Investigation-Name: Table 2ExportRefresh

Sacrificial Electron Donor

In this study, the experiments were done with the sacrificial electron donor TEOA (100507).

Additives

In this study, no additives were tested.