Energy Transfer Dynamics in Metal-Organic Frameworks

被引：324

作者：

Kent, Caleb A. ^{[1
]}

Mehl, Brian P. ^{[1
]}

Ma, Liqing ^{[1
]}

Papanikolas, John M. ^{[1
]}

Meyer, Thomas J. ^{[1
]}

Lin, Wenbin ^{[1
]}

机构：

[1] Univ N Carolina, Dept Chem, Chapel Hill, NC 27599 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2010年 / 132卷 / 37期

基金：

美国国家科学基金会;

关键词：

EXCITED-STATE; CHARGE-TRANSFER; MIGRATION DYNAMICS; ELECTRON-TRANSFER; COMPLEXES; PHOTOCHEMISTRY; RUTHENIUM(II); (CT)-C-3; RU(II);

D O I：

10.1021/ja102804s

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Isomorphous metal organic frameworks (MOFs) based on {M[4,4'-(HO2C)(2)-bpy](2)bpy}(2+) building blocks (where M = Ru or Os) were designed and synthesized to study the classic Ru to Os energy transfer process that has potential applications in light-harvesting with supramolecular assemblies. The crystalline nature of the MOFs allows precise determination of the distances between metal centers by X-ray diffraction, thereby facilitating the study of the Ru -> Os energy transfer process. The mixed-metal MOFs with 0.3, 0.6, 1.4, and 2.6 mol % Os doping were also synthesized in order to study the energy transfer dynamics with a two-photon excitation at 850 nm. The Ru lifetime at 620 nm decreases from 171 ns in the pure Ru MOF to 29 ns in the sample with 2.6 mol % Os doping. In the mixed-metal samples, energy transfer was observed with an initial growth in Os emission corresponding with the rate of decay of the Ru excited state. These results demonstrate rapid, efficient energy migration and long distance transfer in isomorphous MOFs.

引用

页码：12767 / 12769

页数：3

共 37 条

[1] Luminescent metal-organic frameworks [J].

Allendorf, M. D. ;

Bauer, C. A. ;

Bhakta, R. K. ;

Houk, R. J. T. .

CHEMICAL SOCIETY REVIEWS, 2009, 38 (05) :1330-1352

[2] Discrete Cyclic Porphyrin Arrays as Artificial Light-Harvesting Antenna [J].

Aratani, Naoki ;

Kim, Dongho ;

Osuka, Atsuhiro .

ACCOUNTS OF CHEMICAL RESEARCH, 2009, 42 (12) :1922-1934

[3] Photodriven heterogeneous charge transfer with transition-metal compounds anchored to TiO2 semiconductor surfaces [J].

Ardo, Shane ;

Meyer, Gerald J. .

CHEMICAL SOCIETY REVIEWS, 2009, 38 (01) :115-164

[4] Electronic spectroscopy of metal complexes with dendritic ligands [J].

Balzani, Vincenzo ;

Bergamini, Giacomo ;

Ceroni, Paola ;

Voegtle, Fritz .

COORDINATION CHEMISTRY REVIEWS, 2007, 251 (3-4) :525-535

[5] Crystal engineering as a tool for directed radiationless energy transfer in layered {Λ-[Ru(bpy)3]Δ-[Os(bpy)3]}(PF6)4 [J].

Breu, J ;

Kratzer, C ;

Yersin, H .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (11) :2548-2555

[6] A Luminescent Metal-Organic Framework with Lewis Basic Pyridyl Sites for the Sensing of Metal Ions [J].

Chen, Banglin ;

Wang, Liangbo ;

Xiao, Yunqing ;

Fronczek, Frank R. ;

Xue, Ming ;

Cui, Yuanjing ;

Qian, Guodong .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2009, 48 (03) :500-503

[7] Dynamics of Light Harvesting in Photosynthesis [J].

Cheng, Yuan-Chung ;

Fleming, Graham R. .

ANNUAL REVIEW OF PHYSICAL CHEMISTRY, 2009, 60 :241-262

[8] Nanoscale Metal-Organic Frameworks: Magnetic Resonance Imaging Contrast Agents and Beyond [J].

Della Rocca, Joseph ;

Lin, Wenbin .

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2010, (24) :3725-3734

[9] Vibrational and structural mapping of [Os(bpY)3]3+/2+ and [Os(phen)3]3+/2+ [J].

Demadis, Konstantinos D. ;

Dattelbaum, Dana M. ;

Kober, Edward M. ;

Concepcion, Javier J. ;

Paul, Jared J. ;

Meyer, Thomas J. ;

White, Peter S. .

INORGANICA CHIMICA ACTA, 2007, 360 (03) :1143-1153

[10] Excited state interactions in electropolymerized thin films of Ru-II, Os-II, and Zn-II polypyridyl complexes [J].

Devenney, M ;

Worl, LA ;

Gould, S ;

Guadalupe, A ;

Sullivan, BP ;

Caspar, JV ;

Leasure, RL ;

Gardner, JR ;

Meyer, TJ .

JOURNAL OF PHYSICAL CHEMISTRY A, 1997, 101 (25) :4535-4540

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