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)3(MeCN) (100693) Mn(phen)(CO)3Br (100708) Mn(bpy)(CO)3Br (100752)

Photosensitizer

Ru(bpy)3Cl2 (100787)

Investigation

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

Investigation-Name: Table 1

Sacrificial electron donor

BNAH (100509)TEOA (100507)