Abstract
Nickel(ii) bis(diphosphine) complexes that contain positioned bases in the second coordination sphere have been found to catalyze the reduction of O 2 with H2 to selectively form water. The complexes also serve as electrocatalysts for the reduction of O2 with the addition of a weak acid. In contrast, a closely related nickel diphosphine complex without the positioned bases is catalytically inactive for O2 reduction. These results indicate that pendant bases in synthetic catalysts for O2 reduction can play a similar role to proton relays in enzymes, and that such relays should be considered in the design of catalysts for multi-electron and multi-proton reactions.
| Original language | English |
|---|---|
| Pages (from-to) | 3001-3010 |
| Number of pages | 10 |
| Journal | Dalton Transactions |
| Volume | 39 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2010 |
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ASJC Scopus subject areas
- Inorganic Chemistry
Cite this
Reduction of oxygen catalyzed by nickel diphosphine complexes with positioned pendant amines. / Yang, Jenny Y.; Bullock, R Morris; Dougherty, William G.; Kassel, W. Scott; Twamley, Brendan; DuBois, Daniel L; Rakowski Dubois, M.
In: Dalton Transactions, Vol. 39, No. 12, 2010, p. 3001-3010.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Reduction of oxygen catalyzed by nickel diphosphine complexes with positioned pendant amines
AU - Yang, Jenny Y.
AU - Bullock, R Morris
AU - Dougherty, William G.
AU - Kassel, W. Scott
AU - Twamley, Brendan
AU - DuBois, Daniel L
AU - Rakowski Dubois, M.
PY - 2010
Y1 - 2010
N2 - Nickel(ii) bis(diphosphine) complexes that contain positioned bases in the second coordination sphere have been found to catalyze the reduction of O 2 with H2 to selectively form water. The complexes also serve as electrocatalysts for the reduction of O2 with the addition of a weak acid. In contrast, a closely related nickel diphosphine complex without the positioned bases is catalytically inactive for O2 reduction. These results indicate that pendant bases in synthetic catalysts for O2 reduction can play a similar role to proton relays in enzymes, and that such relays should be considered in the design of catalysts for multi-electron and multi-proton reactions.
AB - Nickel(ii) bis(diphosphine) complexes that contain positioned bases in the second coordination sphere have been found to catalyze the reduction of O 2 with H2 to selectively form water. The complexes also serve as electrocatalysts for the reduction of O2 with the addition of a weak acid. In contrast, a closely related nickel diphosphine complex without the positioned bases is catalytically inactive for O2 reduction. These results indicate that pendant bases in synthetic catalysts for O2 reduction can play a similar role to proton relays in enzymes, and that such relays should be considered in the design of catalysts for multi-electron and multi-proton reactions.
UR - http://www.scopus.com/inward/record.url?scp=77949412647&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77949412647&partnerID=8YFLogxK
U2 - 10.1039/b921245k
DO - 10.1039/b921245k
M3 - Article
VL - 39
SP - 3001
EP - 3010
JO - Dalton Transactions
JF - Dalton Transactions
SN - 1477-9226
IS - 12
ER -