Photoinitiated electron collection at a metal in a rhodium-centered mixed-metal supramolecular complex

被引:66
作者
Elvington, M [1 ]
Brewer, KJ [1 ]
机构
[1] Virginia Polytech Inst & State Univ, Dept Chem, Blacksburg, VA 24060 USA
关键词
D O I
10.1021/ic0602648
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A mixed-metal supramolecular complex [{(bpy)(2)Ru(dpp)}(2)RhCl2](5+) has been studied and shown to undergo photoinitiated electron collection at the metal center. Reported herein is an analysis of the photochemical properties of this complex, illustrating the ability of this complex to photoreduce by two electrons by converting Rh-III to Rh-I and with the trimetallic assembly remaining intact. Emission-quenching experiments demonstrate efficient quenching of the Ru -> dpp charge-transfer state by the Rh center and the electron-donor dimethylaniline.
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收藏
页码:5242 / 5244
页数:3
相关论文
共 29 条
[11]   POLY(PYRIDINE)RUTHENIUM(II)-PHOTOINDUCED REDOX REACTIONS OF BIPYRIDINIUM CATIONS, POLY(PYRIDINE)RHODIUM COMPLEXES, AND OSMIUM AMMINES [J].
CREUTZ, C ;
KELLER, AD ;
SUTIN, N ;
ZIPP, AP .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1982, 104 (13) :3618-3627
[12]   A photocycle for hydrogen production from two-electron mixed-valence complexes [J].
Esswein, AJ ;
Veige, AS ;
Nocera, DG .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (47) :16641-16651
[13]   SPECTROSCOPIC AND ELECTROCHEMICAL PROPERTIES OF DIMERIC RUTHENIUM(II) DIIMINE COMPLEXES AND DETERMINATION OF THEIR EXCITED-STATE REDOX PROPERTIES [J].
FUCHS, Y ;
LOFTERS, S ;
DIETER, T ;
SHI, W ;
MORGAN, R ;
STREKAS, TC ;
GAFNEY, HD ;
BAKER, AD .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1987, 109 (09) :2691-2697
[14]   A model for two-electron mixed valence in metal-metal bonded dirhodium compounds [J].
Gray, TG ;
Nocera, DG .
CHEMICAL COMMUNICATIONS, 2005, (12) :1540-1542
[15]   LUMINESCENCE QUENCHING OF THE TRIS(2,2'-BIPYRAZINE)RUTHENIUM(II) CATION AND ITS MONOPROTONATED COMPLEX [J].
HAGA, MA ;
DODSWORTH, ES ;
ERYAVEC, G ;
SEYMOUR, P ;
LEVER, ABP .
INORGANIC CHEMISTRY, 1985, 24 (12) :1901-1906
[16]   Hydrogen produced from hydrohalic acid solutions by a two-electron mixed-valence photocatalyst [J].
Heyduk, AF ;
Nocera, DG .
SCIENCE, 2001, 293 (5535) :1639-1641
[17]   Design aspects for the development of mixed-metal supramolecular complexes capable of visible light induced photocleavage of DNA [J].
Holder, AA ;
Swavey, S ;
Brewer, KJ .
INORGANIC CHEMISTRY, 2004, 43 (01) :303-308
[18]  
INDELLI MT, 1994, J AM CHEM SOC, V116, P3775
[20]   ELECTROCHEMISTRY OF RHODIUM-DIPYRIDYL COMPLEXES [J].
KEW, G ;
DEARMOND, K ;
HANCK, K .
JOURNAL OF PHYSICAL CHEMISTRY, 1974, 78 (07) :727-734