Electrocatalytic four-electron reduction of oxygen to water by a highly flexible cofacial cobalt bisporphyrin

被引:168
作者
Chang, CJ
Deng, YQ
Shi, CN
Chang, CK [1 ]
Anson, FC
Nocera, DG
机构
[1] Michigan State Univ, Dept Chem, E Lansing, MI 48824 USA
[2] MIT, Dept Chem, Cambridge, MA 02139 USA
[3] CALTECH, Arthur Amos Noyes Lab Chem Phys, Div Chem & Chem Engn, Pasadena, CA 91125 USA
关键词
D O I
10.1039/b001620i
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Dicobalt(ii) cofacial bisporphyrins anchored by dibenzofuran (DPD) and xanthene (DPX) are efficient electrocatalysts for the four-electron reduction of oxygen to water despite their ca. 4 Angstrom difference in metal-metal distances, suggesting that the considerable longitudinal 'Pac-Man' flexibility of the pillared platforms is the origin for the similar catalytic reactivity of these structurally disparate systems.
引用
收藏
页码:1355 / 1356
页数:2
相关论文
共 17 条
[1]   Novel multinuclear catalysts for the electroreduction of dioxygen directly to water [J].
Anson, FC ;
Shi, CN ;
Steiger, B .
ACCOUNTS OF CHEMICAL RESEARCH, 1997, 30 (11) :437-444
[2]   Covalently supported porphyrins as ligands for the preparation of heme a3/CuB binuclear active site analogues of heme-copper terminal oxidases and metallation under mild conditions [J].
Baeg, JO ;
Holm, RH .
CHEMICAL COMMUNICATIONS, 1998, (05) :571-572
[3]   Xanthene-bridged cofacial bisporphyrins [J].
Chang, CJ ;
Deng, YQ ;
Heyduk, AF ;
Chang, CK ;
Nocera, DG .
INORGANIC CHEMISTRY, 2000, 39 (05) :959-966
[4]   A BIPHENYLENEDIPORPHYRIN - 2 COFACIALLY ARRANGED PORPHYRINS WITH A BIPHENYLENE BRIDGE [J].
CHANG, CK ;
ABDALMUHDI, I .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1984, 23 (02) :164-165
[5]   ELECTROREDUCTION OF OXYGEN BY PILLARED COBALT COFACIAL DIPORPHYRIN CATALYSTS [J].
CHANG, CK ;
LIU, HY ;
ABDALMUHDI, I .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1984, 106 (09) :2725-2726
[6]   SYNTHESIS AND CHARACTERIZATION OF A SUPEROXO COMPLEX OF THE DICOBALT COFACIAL DIPORPHYRIN [(MU-O2)CO2(DPB)(1,5-DIPHENYLIMIDAZOLE)2][PF6], THE STRUCTURE OF THE PARENT DICOBALT DIPORPHYRIN CO2(DPB), AND A NEW SYNTHESIS OF THE FREE-BASE COFACIAL DIPORPHYRIN H-4(DPB) [J].
COLLMAN, JP ;
HUTCHISON, JE ;
LOPEZ, MA ;
TABARD, A ;
GUILARD, R ;
SEOK, WK ;
IBERS, JA ;
LHER, M .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1992, 114 (25) :9869-9877
[7]   MOLECULAR CATALYSTS FOR MULTIELECTRON REDOX REACTIONS OF SMALL MOLECULES - THE COFACIAL METALLODIPORPHYRIN APPROACH [J].
COLLMAN, JP ;
WAGENKNECHT, PS ;
HUTCHISON, JE .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1994, 33 (15-16) :1537-1554
[8]   Close structural analogues of the cytochrome c oxidase Fea3/CuB center show clean 4e- electroreduction of O2 to H2O at physiological pH [J].
Collman, JP ;
Rapta, M ;
Bröring, M ;
Raptova, L ;
Schwenninger, R ;
Boitrel, B ;
Fu, L ;
L'Her, M .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (06) :1387-1388
[9]  
Collman JP, 1998, ANGEW CHEM INT EDIT, V37, P3397, DOI 10.1002/(SICI)1521-3773(19981231)37:24<3397::AID-ANIE3397>3.0.CO
[10]  
2-N