Mn-carbonyl molecular catalysts containing a redox-active phenanthroline-5,6-dione for selective electro- and photoreduction of CO2 to CO or HCOOH

Catalyst

Mn(phdk)(CO)3Br Mn(phdk)(CO)3(MeCN) Mn(phen)(CO)3Br Mn(bpy)(CO)3Br

Photosensitizer

Ru(bpy)3Cl2

Investigation

	cat	cat conc [µM]	PS	PS conc [mM]	e-D	e-D conc [M]	solvent A	.	.	.	additives	λexc [nm]	.	TON CO	TON HCOOH	.
1.	Mn(phdk)(CO)3Br		Ru(bpy)3Cl2	100	BNAH	0.1	MeCN					480		8	52
2.	Mn(phdk)(CO)3(MeCN)		Ru(bpy)3Cl2	100	BNAH	0.1	MeCN					480		15	58
3.	Mn(phdk)(CO)3(MeCN)		Ru(bpy)3Cl2	100	BNAH	0.1	MeCN					480		9	48
4.	Mn(bpy)(CO)3Br		Ru(bpy)3Cl2	100	BNAH	0.1	MeCN					480		47	15
5.	Mn(phdk)(CO)3(MeCN)		Ru(bpy)3Cl2	100	BNAH	0.1	MeCN					500		7	40
6.	Mn(phdk)(CO)3(MeCN)		Ru(bpy)3Cl2	100	BNAH	0.1	MeCN					457		7	34
7.	Mn(phdk)(CO)3(MeCN)	2	Ru(bpy)3Cl2	100	BNAH	0.1	MeCN					480		5	18
8.	Mn(phdk)(CO)3(MeCN)		Ru(bpy)3Cl2	200	BNAH	0.1	MeCN					480		8	52
9.	Mn(phdk)(CO)3(MeCN)		Ru(bpy)3Cl2	100	BNAH	0.1	MeCN					480
10.	Mn(phdk)(CO)3(MeCN)		Ru(bpy)3Cl2	100	BNAH	0.1	MeCN					500
11.	Mn(phdk)(CO)3(MeCN)		Ru(bpy)3Cl2	100			MeCN					480		3
12.	Mn(phdk)(CO)3(MeCN)				BNAH	0.1	MeCN					500
13.	Mn(phdk)(CO)3Br		Ru(bpy)3Cl2	100	BNAH	0.1	MeCN				Argon gas	480
14.			Ru(bpy)3Cl2	100	BNAH	0.1	MeCN					480
15.			Ru(bpy)3Cl2	100	BNAH	0.1	MeCN					480
16.	Mn(phdk)(CO)3Br		Ru(bpy)3Cl2	100	BNAH	0.1	DMF					480		21	22
17.	Mn(phdk)(CO)3Br		Ru(bpy)3Cl2	100	BNAH	0.1	DMF					480		2
18.	Mn(phdk)(CO)3Br		Ru(bpy)3Cl2	100			DMF					480		9	13
19.	Mn(phen)(CO)3Br		Ru(bpy)3Cl2	100	BNAH	0.1	DMF					480		17	4
20.	Mn(bpy)(CO)3Br		Ru(bpy)3Cl2	100	BNAH	0.1	DMF					480		6	39
21.	Mn(phdk)(CO)3(MeCN)		Ru(bpy)3Cl2	100			H2O				ascorbic acid/NaA	480
22.	Mn(phdk)(CO)3(MeCN)		Ru(bpy)3Cl2	100			H2O				ascorbic acid/NaA	500

Investigation-Name: Table 1Export

Sacrificial electron donor

BNAHTEOA