Comparison of metal-metal electronic interactions in an isomeric pair of dinuclear ruthenium complexes with different bridging pathways: Effective hole transfer through a bis-phenolate bridge

被引：42

作者：

Laye, RH ^{[1
]}

Couchman, SM ^{[1
]}

Ward, MD ^{[1
]}

机构：

[1] Univ Bristol, Sch Chem, Bristol BS8 1TS, Avon, England

来源：

INORGANIC CHEMISTRY | 2001年 / 40卷 / 16期

关键词：

D O I：

10.1021/ic010054p

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Comparison of Metal-Metal Electronic Interactions in an Isomeric Pair of Dinuclear Ruthenium Complexes with Different Bridging Pathways: Effective Hole Transfer through a Bis-phenolate Bridge Complexes A and B are isomeric but have different bridging pathways linking the two Ru(II) centers. Electrochemical and UV/vis/NIR spectroelectrochemical measurements both show that the metal-metal electronic coupling is considerably stronger in B than in A despite the greater metal-metal separation, because the oxidized Ru(II)/Ru(III) mixed-valence state can be delocalized by hole transfer across the (oxidizable) bis-phenolate bridge. [GRAPHICS]

引用

收藏

页码：4089 / +

页数：5

相关论文

共 35 条

[11] THE COORDINATION CHEMISTRY OF MIXED PYRIDINE PHENOL LIGANDS, SPECTROSCOPIC AND REDOX PROPERTIES OF MONONUCLEAR RUTHENIUM COMPLEXES WITH (PYRIDINE)6-X(PHENOLATE)X DONOR SETS (X = 1 OR 2) [J].

HOLLIGAN, BM ;

JEFFERY, JC ;

NORGETT, MK ;

SCHATZ, E ;

WARD, MD .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1992, (23) :3345-3351

[12] DISTANCE DEPENDENCE OF ELECTRON-TRANSFER RATES [J].

HUSH, NS .

COORDINATION CHEMISTRY REVIEWS, 1985, 64 (MAY) :135-157

[13] Exploration of mixed valence chemistry:: Inventing new analogues of the Creutz-Taube ion [J].

Kaim, W ;

Klein, A ;

Glöckle, M .

ACCOUNTS OF CHEMICAL RESEARCH, 2000, 33 (11) :755-763

[14] INTER-CHROMOPHORE ELECTRONIC INTERACTIONS IN LIGAND-BRIDGED POLYNUCLEAR COMPLEXES - A COMPARATIVE-STUDY OF VARIOUS BRIDGING LIGANDS [J].

KALYANASUNDARAM, K ;

NAZEERUDDIN, MK .

INORGANICA CHIMICA ACTA, 1994, 226 (1-2) :213-230

[15] Synthesis of cyclo-2,2':4',4'':2'',2''':4''',4'''':2'''',2''''':4''''',4-sexipyridine [J].

Kelly, TR ;

Lee, YJ ;

Mears, RJ .

JOURNAL OF ORGANIC CHEMISTRY, 1997, 62 (09) :2774-2781

[16] Modulation of electronic coupling across dioxolene-bridged osmium and ruthenium dinuclear complexes [J].

Keyes, TE ;

Forster, RJ ;

Jayaweera, PM ;

Coates, CG ;

McGarvey, JJ ;

Vos, JG .

INORGANIC CHEMISTRY, 1998, 37 (22) :5925-5932

[17] ELECTRONIC-STRUCTURE IN THE INTERVALENCE TRANSFER ABSORPTION-BAND OF A MIXED-VALENCE DIMER [J].

KOBER, EM ;

GOLDSBY, KA ;

NARAYANA, DNS ;

MEYER, TJ .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1983, 105 (13) :4303-4309

[18] A new route to mixed oxo/arylimido complexes of molybdenum(VI) with a tris(pyrazolyl)borate co-ligand: syntheses, spectroscopic properties and ligand-centred redox activity [J].

Lee, SM ;

Kowallick, R ;

Marcaccio, M ;

McCleverty, JA ;

Ward, MD .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1998, (20) :3443-3450

[19] Vibronic coupling in dicyano-complex-bridged mixed-valence complexes. Relaxation of vibronic constraints in systems with degenerate bridging-ligand and electron-transfer excited states [J].

Macatangay, AV ;

Endicott, JF .

INORGANIC CHEMISTRY, 2000, 39 (03) :437-446

[20] The role of bridging ligands in controlling electronic and magnetic properties in polynuclear complexes [J].

McCleverty, JA ;

Ward, MD .

ACCOUNTS OF CHEMICAL RESEARCH, 1998, 31 (12) :842-851

← 1 2 3 4 →