Photochemical Reduction of Carbon Dioxide to Formic Acid using Ruthenium(II)-Based Catalysts and Visible Light

[PRo15]

Catalysts

Table 1	2	3	4	5	6	7
cat	100610	100607	100611	100612	100608	100609
cat c	0.025	0.025	0.025	0.025	0.025	0.025
PS	100487	100487	100487	100487	100487	100487
PS c	0.025	0.025	0.025	0.025	0.025	0.025
e-D	TEOA (100507)	TEOA	TEOA	TEOA	TEOA	TEOA
Solv A	NMP (100532)	NMP	NMP	NMP	NMP	NMP
T	25	25	25	25	25	25
exc	400 - 700	400 - 700	400 - 700	400 - 700	400 - 700	400 - 700
TON CO	1	2	13	8	7	3
TON H2	2	4	8	8	9	4
TON HCOOH	13	21	62	34	40	27

Photosensitizer

Electron donor

TEOA

Table 2	1	2	3	4	5	6	7	8	9	10	11	12	13
cat	100610	100607	100611	100612	100608	100609	100611	100612	100608	100611	100612	100608	100609
cat c	0.0062	0.0062	0.0062	0.0062	0.0062	0.0062	0.0031	0.0031	0.0031	0.0016	0.0016	0.0016	0.0016
PS	100487	100487	100487	100487	100487	100487	100487	100487	100487	100487	100487	100487	100487
PS c	0.025	0.025	0.025	0.025	0.025	0.025	0.025	0.025	0.025	0.025	0.025	0.025	0.025
e-D	TEOA	TEOA	TEOA	TEOA	TEOA	TEOA	TEOA	TEOA	TEOA	TEOA	TEOA	TEOA	TEOA
Solv A	NMP	NMP	NMP	NMP	NMP	NMP	NMP	NMP	NMP	NMP	NMP	NMP	NMP
T	25	25	25	25	25	25	25	25	25	25	25	25	25
exc	400 - 700	400 - 700	400 - 700	400 - 700	400 - 700	400 - 700	400 - 700	400 - 700	400 - 700	400 - 700	400 - 700	400 - 700	400 - 700
TON CO	3	3	19	21	21	4	36	16	34	40	25	45	4
TON H2	9	11	19	16	14	12	33	29	28	67	62	65	44
TON HCOOH	26	39	117	107	75	64	296	145	211	419	225	335	75

	cat	cat conc [µM]	PS	PS conc [mM]	e-D	solvent A	.	λexc [nm]	TON CO	TON H2	TON HCOOH	.
1.	Ru(bpy)2Cl2	0.025	[Ir(ppy)2(bpy)][PF6]	0.025	TEOA	NMP		400 - 700	1	2	13
2.	Ru(bpy)2CO3	0.025	[Ir(ppy)2(bpy)][PF6]	0.025	TEOA	NMP		400 - 700	2	4	21
3.	[Ru(bpy)2ClCO][PF6]	0.025	[Ir(ppy)2(bpy)][PF6]	0.025	TEOA	NMP		400 - 700	13	8	62
4.	[Ru(bpy)2HCO][PF6]	0.025	[Ir(ppy)2(bpy)][PF6]	0.025	TEOA	NMP		400 - 700	8	8	34
5.	[Ru(bpy)(H2O)(CO)][PF6]	0.025	[Ir(ppy)2(bpy)][PF6]	0.025	TEOA	NMP		400 - 700	7	9	40
6.	[Ru(bpy)(AcMe)2][PF6]	0.025	[Ir(ppy)2(bpy)][PF6]	0.025	TEOA	NMP		400 - 700	3	4	27

Investigation-Name: Table 1Export