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Zhang H, Weiss I, Rudra I, Jo WJ, Kellner S, Katsoukis G, Galoppini E, Frei H. Controlling and Optimizing Photoinduced Charge Transfer across Ultrathin Silica Separation Membrane with Embedded Molecular Wires for Artificial Photosynthesis. ACS APPLIED MATERIALS & INTERFACES 2021; 13:23532-23546. [PMID: 33983702 DOI: 10.1021/acsami.1c00735] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Ultrathin amorphous silica membranes with embedded organic molecular wires (oligo(p-phenylenevinylene), three aryl units) provide chemical separation of incompatible catalytic environments of CO2 reduction and H2O oxidation while maintaining electronic and protonic coupling between them. For an efficient nanoscale artificial photosystem, important performance criteria are high rate and directionality of charge flow. Here, the visible-light-induced charge flow from an anchored Ru bipyridyl light absorber across the silica nanomembrane to Co3O4 water oxidation catalyst is quantitatively evaluated by photocurrent measurements. Charge transfer rates increase linearly with wire density, with 5 nm-2 identified as an optimal target. Accurate measurement of wire and light absorber densities is accomplished by the polarized FT-IRRAS method. Guided by density functional theory (DFT) calculations, four wire derivatives featuring electron-donating (methoxy) and -withdrawing groups (sulfonate, perfluorophenyl) with highest occupied molecular orbital (HOMO) potentials ranging from 1.48 to 0.64 V vs NHE were synthesized and photocurrents evaluated. Charge transfer rates increase sharply with increasing driving force for hole transfer from the excited light absorber to the embedded wire, followed by a decrease as the HOMO potential of the wire moves beyond the Co3O4 valence band level toward more negative values, pointing to an optimal wire HOMO potential around 1.3 V vs NHE. Comparison with photocurrents of samples without nanomembrane indicates that silica layers with optimized wires are able to approach undiminished electron flux at typical solar intensities. Combined with the established high proton conductivity and small-molecule blocking property, the charge transfer measurements demonstrate that oxidation and reduction catalysis can be efficiently integrated on the nanoscale under separation by an ultrathin silica membrane.
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Affiliation(s)
- Hongna Zhang
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, United States
| | - Ian Weiss
- Department of Chemistry, Rutgers University, Newark, New Jersey 07102, United States
| | - Indranil Rudra
- Shell India Markets Pvt. Ltd., Mahadeva Kodigehalli, Bangalore 562149, India
| | - Won Jun Jo
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, United States
| | - Simon Kellner
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, United States
| | - Georgios Katsoukis
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, United States
| | - Elena Galoppini
- Department of Chemistry, Rutgers University, Newark, New Jersey 07102, United States
| | - Heinz Frei
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, United States
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2
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Polakovsky A, Showman J, Valdiviezo J, Palma JL. Quantum interference enhances rectification behavior of molecular devices. Phys Chem Chem Phys 2021; 23:1550-1557. [DOI: 10.1039/d0cp05801g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A theoretical and computational study of the effect of quantum interference on the rectification behavior of unimolecular devices.
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Affiliation(s)
| | - Janai Showman
- Department of Chemistry
- The Pennsylvania State University
- Lemont Furnace
- USA
| | | | - Julio L. Palma
- Department of Chemistry
- The Pennsylvania State University
- Lemont Furnace
- USA
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3
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Harmer R, Fan H, Lloyd K, Doble S, Avenoso J, Yan H, Rego LGC, Gundlach L, Galoppini E. Synthesis and Properties of Perylene-Bridge-Anchor Chromophoric Compounds. J Phys Chem A 2020; 124:6330-6343. [PMID: 32654486 DOI: 10.1021/acs.jpca.0c04609] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The quest to control chromophore/semiconductor properties to enable new technologies in energy and information science requires detailed understanding of charge carrier dynamics at the atomistic level, which can often be attained through the use of model systems. Perylene-bridge-anchor compounds are successful models for studying fundamental charge transfer processes on TiO2, which remains among the most commonly investigated and technologically important interfaces, mostly because of perylene's advantageous electronic and optical properties. Nonetheless, the ability to fully exploit synthetically the substitution pattern of perylene with linker (= bridge-anchor) units remains little explored. Here we developed 2,5-di-tert-butylperylene (DtBuPe)-bridge-anchor compounds with t-Bu group substituents to prevent π-stacking and one or two linker units in both the peri and ortho positions, by employing a combination of Friedel-Crafts alkylations, bromination, iridium-catalyzed borylation, and palladium-catalyzed cross-coupling reactions. Photophysical characterization and computational analysis by density functional theory (DFT) and time-dependent DFT (TD-DFT) were carried out on four DtBuPe acrylic acid derivatives with a single or a double linker in peri (12b), ortho (15b), peri,peri (18b), and ortho,ortho (21b). The energies of the unoccupied orbitals {LUMO, LUMO + 1, LUMO + 2} are strongly affected by the presence of a π-conjugated linker, resulting in a stabilization of these states and a red shift of their absorption and emission spectra, as well as the loss of vibronic structure in the spectrum of the peri,peri compound, consistent with the strong bonding character of this substitution pattern.
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Affiliation(s)
- Ryan Harmer
- Department of Chemistry, Rutgers University, Newark, New Jersey 07102, United States
| | - Hao Fan
- Department of Chemistry, Rutgers University, Newark, New Jersey 07102, United States
| | - Katherine Lloyd
- Department of Chemistry, Rutgers University, Newark, New Jersey 07102, United States
| | - Samantha Doble
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Joseph Avenoso
- Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, United States
| | - Han Yan
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Luis G C Rego
- Department of Physics, Universidade Federal de Santa Catarina (UFSC), Florianopolis, South Carolina 88040-900, Brazil
| | - Lars Gundlach
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States.,Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, United States
| | - Elena Galoppini
- Department of Chemistry, Rutgers University, Newark, New Jersey 07102, United States
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4
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Handayani M, Tanaka H, Katayose S, Ohto T, Chen Z, Yamada R, Tada H, Ogawa T. Three site molecular orbital controlled single-molecule rectifiers based on perpendicularly linked porphyrin-imide dyads. NANOSCALE 2019; 11:22724-22729. [PMID: 31750493 DOI: 10.1039/c9nr07105a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The original single-molecule rectifier proposed by Aviram and Ratner is based on a donor-σ-acceptor structure, in which σ functions as the insulator to disconnect the π electronic systems of the two parts. However, there have been no reports on experimentally demonstrated highly efficient single-molecule rectifiers based on this mechanism. In this paper, we demonstrate single-molecule rectifiers with perpendicularly connected metal porphyrin-imide dyads. Our proposed molecule rectifiers use hydroxyl groups at both ends as weak anchoring groups. Measurements of the single-molecule current-voltage characteristics of these molecules clearly show that the rectification ratio reached a high value of 14 on average. Moreover, the ratio could be tuned by changing the central metal in the porphyrin core. All of these features can be explained by the energy-level shift of the molecular orbital using a model with three electronic parts.
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Affiliation(s)
- Murni Handayani
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan. and Indonesian Institute of Sciences (LIPI), Research Center for Metallurgy and Materials, Building 470, PUSPIPTEK Area, Cisauk, Tangerang Selatan, Banten 15314, Indonesia
| | - Hirofumi Tanaka
- Department of Human Intelligence Systems, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu, Kitakyushu 808-0196, Japan
| | - Shinichi Katayose
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.
| | - Tatsuhiko Ohto
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Zhijin Chen
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.
| | - Ryo Yamada
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Hirokazu Tada
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Takuji Ogawa
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.
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5
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Gao C, Wang J, Xu H, Xiong Y. Coordination chemistry in the design of heterogeneous photocatalysts. Chem Soc Rev 2018; 46:2799-2823. [PMID: 28368055 DOI: 10.1039/c6cs00727a] [Citation(s) in RCA: 242] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Heterogeneous catalysts have been widely used for photocatalysis, which is a highly important process for energy conversion, owing to their merits such as easy separation of catalysts from the reaction products and applicability to continuous chemical industry and recyclability. Yet, homogenous photocatalysis receives tremendous attention as it can offer a higher activity and selectivity with atomically dispersed catalytic sites and tunable light absorption. For this reason, there is a major trend to combine the advantages of both homogeneous and heterogeneous photocatalysts, in which coordination chemistry plays a role as the bridge. In this article, we aim to provide the first systematic review to give a clear picture of the recent progress from taking advantage of coordination chemistry. We specifically summarize the role of coordination chemistry as a versatile tool to engineer catalytically active sites, tune light harvesting and maneuver charge kinetics in heterogeneous photocatalysis. We then elaborate on the common fundamentals behind various materials systems, together with key spectroscopic characterization techniques and remaining challenges in this field. The typical applications of coordination chemistry in heterogeneous photocatalysis, including proton reduction, water oxidation, carbon dioxide reduction and organic reactions, are highlighted.
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Affiliation(s)
- Chao Gao
- Hefei National Laboratory for Physical Sciences at the Microscale, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
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Peptides as Bio-inspired Molecular Electronic Materials. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017. [PMID: 29081052 DOI: 10.1007/978-3-319-66095-0_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register]
Abstract
Understanding the electronic properties of single peptides is not only of fundamental importance to biology, but it is also pivotal to the realization of bio-inspired molecular electronic materials. Natural proteins have evolved to promote electron transfer in many crucial biological processes. However, their complex conformational nature inhibits a thorough investigation, so in order to study electron transfer in proteins, simple peptide models containing redox active moieties present as ideal candidates. Here we highlight the importance of secondary structure characteristic to proteins/peptides, and its relevance to electron transfer. The proposed mechanisms responsible for such transfer are discussed, as are details of the electrochemical techniques used to investigate their electronic properties. Several factors that have been shown to influence electron transfer in peptides are also considered. Finally, a comprehensive experimental and theoretical study demonstrates that the electron transfer kinetics of peptides can be successfully fine tuned through manipulation of chemical composition and backbone rigidity. The methods used to characterize the conformation of all peptides synthesized throughout the study are outlined, along with the various approaches used to further constrain the peptides into their geometric conformations. The aforementioned sheds light on the potential of peptides to one day play an important role in the fledgling field of molecular electronics.
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7
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Koepf M, Koenigsmann C, Ding W, Batra A, Negre CFA, Venkataraman L, Brudvig GW, Batista VS, Schmuttenmaer CA, Crabtree RH. Controlling the rectification properties of molecular junctions through molecule-electrode coupling. NANOSCALE 2016; 8:16357-16362. [PMID: 27722662 DOI: 10.1039/c6nr04830g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The development of molecular components functioning as switches, rectifiers or amplifiers is a great challenge in molecular electronics. A desirable property of such components is functional robustness, meaning that the intrinsic functionality of components must be preserved regardless of the strategy used to integrate them into the final assemblies. Here, this issue is investigated for molecular diodes based on N-phenylbenzamide (NPBA) backbones. The transport properties of molecular junctions derived from NPBA are characterized while varying the nature of the functional groups interfacing the backbone and the gold electrodes required for break-junction measurements. Combining experimental and theoretical methods, it is shown that at low bias (<0.85 V) transport is determined by the same frontier molecular orbital originating from the NPBA core, regardless of the anchoring group employed. The magnitude of rectification, however, is strongly dependent on the strength of the electronic coupling at the gold-NPBA interface and on the spatial distribution of the local density of states of the dominant transport channel of the molecular junction.
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Affiliation(s)
- Matthieu Koepf
- Department of Chemistry & Energy Sciences Institute, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107, USA.
| | - Christopher Koenigsmann
- Department of Chemistry & Energy Sciences Institute, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107, USA.
| | - Wendu Ding
- Department of Chemistry & Energy Sciences Institute, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107, USA.
| | - Arunbah Batra
- Department of Applied Physics and Applied Mathematics, Columbia University, Mail Code: 4701, New York, NY 10027, USA.
| | - Christian F A Negre
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - Latha Venkataraman
- Department of Applied Physics and Applied Mathematics, Columbia University, Mail Code: 4701, New York, NY 10027, USA.
| | - Gary W Brudvig
- Department of Chemistry & Energy Sciences Institute, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107, USA.
| | - Victor S Batista
- Department of Chemistry & Energy Sciences Institute, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107, USA.
| | - Charles A Schmuttenmaer
- Department of Chemistry & Energy Sciences Institute, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107, USA.
| | - Robert H Crabtree
- Department of Chemistry & Energy Sciences Institute, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107, USA.
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8
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Koenigsmann C, Ding W, Koepf M, Batra A, Venkataraman L, Negre CFA, Brudvig GW, Crabtree RH, Batista VS, Schmuttenmaer CA. Structure–function relationships in single molecule rectification by N-phenylbenzamide derivatives. NEW J CHEM 2016. [DOI: 10.1039/c6nj00870d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The trend in measured rectification ratios suggests that there is a strong correlation between rectification and the energy of the transmission state relative to the Fermi level.
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Affiliation(s)
| | - Wendu Ding
- Yale Energy Sciences Institute
- Yale University
- West Haven
- USA
- Department of Chemistry
| | - Matthieu Koepf
- Yale Energy Sciences Institute
- Yale University
- West Haven
- USA
| | - Arunabh Batra
- Department of Applied Physics and Applied Mathematics
- Columbia University
- New York
- USA
| | - Latha Venkataraman
- Department of Applied Physics and Applied Mathematics
- Columbia University
- New York
- USA
| | | | - Gary W. Brudvig
- Yale Energy Sciences Institute
- Yale University
- West Haven
- USA
- Department of Chemistry
| | - Robert H. Crabtree
- Yale Energy Sciences Institute
- Yale University
- West Haven
- USA
- Department of Chemistry
| | - Victor S. Batista
- Yale Energy Sciences Institute
- Yale University
- West Haven
- USA
- Department of Chemistry
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9
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Jiang J, Swierk JR, Hedström S, Matula AJ, Crabtree RH, Batista VS, Schmuttenmaer CA, Brudvig GW. Molecular design of light-harvesting photosensitizers: effect of varied linker conjugation on interfacial electron transfer. Phys Chem Chem Phys 2016; 18:18678-82. [DOI: 10.1039/c6cp04377a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Interfacial electron transfer dynamics of a series of photosensitizers bound to TiO2via linkers of varying conjugation strength are explored by spectroscopic and computational techniques.
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Affiliation(s)
- Jianbing Jiang
- Department of Chemistry and Energy Sciences Institute
- Yale University
- New Haven
- USA
| | - John R. Swierk
- Department of Chemistry and Energy Sciences Institute
- Yale University
- New Haven
- USA
| | - Svante Hedström
- Department of Chemistry and Energy Sciences Institute
- Yale University
- New Haven
- USA
| | - Adam J. Matula
- Department of Chemistry and Energy Sciences Institute
- Yale University
- New Haven
- USA
| | - Robert H. Crabtree
- Department of Chemistry and Energy Sciences Institute
- Yale University
- New Haven
- USA
| | - Victor S. Batista
- Department of Chemistry and Energy Sciences Institute
- Yale University
- New Haven
- USA
| | | | - Gary W. Brudvig
- Department of Chemistry and Energy Sciences Institute
- Yale University
- New Haven
- USA
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10
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Ding W, Koepf M, Koenigsmann C, Batra A, Venkataraman L, Negre CFA, Brudvig GW, Crabtree RH, Schmuttenmaer CA, Batista VS. Computational Design of Intrinsic Molecular Rectifiers Based on Asymmetric Functionalization of N-Phenylbenzamide. J Chem Theory Comput 2015; 11:5888-96. [DOI: 10.1021/acs.jctc.5b00823] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wendu Ding
- Department of Chemistry, Yale University, P.O. Box 208107, New
Haven, Connecticut 06520-8107, United States
- Yale Energy Sciences Institute, Yale University, P.O.
Box 27394, West Haven, Connecticut 06516-7394, United States
| | - Matthieu Koepf
- Yale Energy Sciences Institute, Yale University, P.O.
Box 27394, West Haven, Connecticut 06516-7394, United States
| | - Christopher Koenigsmann
- Yale Energy Sciences Institute, Yale University, P.O.
Box 27394, West Haven, Connecticut 06516-7394, United States
| | - Arunabh Batra
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027, United States
| | - Latha Venkataraman
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027, United States
| | - Christian F. A. Negre
- Department of Chemistry, Yale University, P.O. Box 208107, New
Haven, Connecticut 06520-8107, United States
- Yale Energy Sciences Institute, Yale University, P.O.
Box 27394, West Haven, Connecticut 06516-7394, United States
| | - Gary W. Brudvig
- Department of Chemistry, Yale University, P.O. Box 208107, New
Haven, Connecticut 06520-8107, United States
- Yale Energy Sciences Institute, Yale University, P.O.
Box 27394, West Haven, Connecticut 06516-7394, United States
| | - Robert H. Crabtree
- Department of Chemistry, Yale University, P.O. Box 208107, New
Haven, Connecticut 06520-8107, United States
- Yale Energy Sciences Institute, Yale University, P.O.
Box 27394, West Haven, Connecticut 06516-7394, United States
| | - Charles A. Schmuttenmaer
- Department of Chemistry, Yale University, P.O. Box 208107, New
Haven, Connecticut 06520-8107, United States
- Yale Energy Sciences Institute, Yale University, P.O.
Box 27394, West Haven, Connecticut 06516-7394, United States
| | - Victor S. Batista
- Department of Chemistry, Yale University, P.O. Box 208107, New
Haven, Connecticut 06520-8107, United States
- Yale Energy Sciences Institute, Yale University, P.O.
Box 27394, West Haven, Connecticut 06516-7394, United States
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11
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Monti A, Negre CFA, Batista VS, Rego LGC, de Groot HJM, Buda F. Crucial Role of Nuclear Dynamics for Electron Injection in a Dye-Semiconductor Complex. J Phys Chem Lett 2015; 6:2393-8. [PMID: 26266622 DOI: 10.1021/acs.jpclett.5b00876] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
We investigate the electron injection from a terrylene-based chromophore to the TiO2 semiconductor bridged by a recently proposed phenyl-amide-phenyl molecular rectifier. The mechanism of electron transfer is studied by means of quantum dynamics simulations using an extended Hückel Hamiltonian. It is found that the inclusion of the nuclear motion is necessary to observe the photoinduced electron transfer. In particular, the fluctuations of the dihedral angle between the terrylene and the phenyl ring modulate the localization and thus the electronic coupling between the donor and acceptor states involved in the injection process. The electron propagation shows characteristic oscillatory features that correlate with interatomic distance fluctuations in the bridge, which are associated with the vibrational modes driving the process. The understanding of such effects is important for the design of functional dyes with optimal injection and rectification properties.
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Affiliation(s)
- Adriano Monti
- †Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2300 RA, Leiden, The Netherlands
| | - Christian F A Negre
- §Theoretical Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, New Mexico 87545, United States
| | - Victor S Batista
- ‡Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Luis G C Rego
- ∥Department of Physics, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Huub J M de Groot
- †Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2300 RA, Leiden, The Netherlands
| | - Francesco Buda
- †Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2300 RA, Leiden, The Netherlands
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12
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Horsley JR, Yu J, Abell AD. The Correlation of Electrochemical Measurements and Molecular Junction Conductance Simulations in β-Strand Peptides. Chemistry 2015; 21:5926-33. [DOI: 10.1002/chem.201406451] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Indexed: 01/14/2023]
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13
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Bao D, Upadhyayula S, Larsen JM, Xia B, Georgieva B, Nuñez V, Espinoza EM, Hartman JD, Wurch M, Chang A, Lin CK, Larkin J, Vasquez K, Beran GJO, Vullev VI. Dipole-mediated rectification of intramolecular photoinduced charge separation and charge recombination. J Am Chem Soc 2014; 136:12966-73. [PMID: 25162490 DOI: 10.1021/ja505618n] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Controlling charge transfer at a molecular scale is critical for efficient light harvesting, energy conversion, and nanoelectronics. Dipole-polarization electrets, the electrostatic analogue of magnets, provide a means for "steering" electron transduction via the local electric fields generated by their permanent electric dipoles. Here, we describe the first demonstration of the utility of anthranilamides, moieties with ordered dipoles, for controlling intramolecular charge transfer. Donor-acceptor dyads, each containing a single anthranilamide moiety, distinctly rectify both the forward photoinduced electron transfer and the subsequent charge recombination. Changes in the observed charge-transfer kinetics as a function of media polarity were consistent with the anticipated effects of the anthranilamide molecular dipoles on the rectification. The regioselectivity of electron transfer and the molecular dynamics of the dyads further modulated the observed kinetics, particularly for charge recombination. These findings reveal the underlying complexity of dipole-induced effects on electron transfer and demonstrate unexplored paradigms for molecular rectifiers.
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Affiliation(s)
- Duoduo Bao
- Department of Bioengineering, ‡Department of Biochemistry, §Department of Chemistry, and ∥Materials Science and Engineering Program, University of California , Riverside, California 92521, United States
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14
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Ding W, Negre CFA, Vogt L, Batista VS. Single Molecule Rectification Induced by the Asymmetry of a Single Frontier Orbital. J Chem Theory Comput 2014; 10:3393-400. [DOI: 10.1021/ct5004687] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Wendu Ding
- Department of Chemistry, Yale University, P.O.
Box 208107, New Haven, Connecticut 06520-8107, United States
- Energy Sciences Institute, Yale University, P.O.
Box 27394, West Haven, Connecticut 06516-7394, United States
| | - Christian F. A. Negre
- Department of Chemistry, Yale University, P.O.
Box 208107, New Haven, Connecticut 06520-8107, United States
- Energy Sciences Institute, Yale University, P.O.
Box 27394, West Haven, Connecticut 06516-7394, United States
| | - Leslie Vogt
- Department of Chemistry, Yale University, P.O.
Box 208107, New Haven, Connecticut 06520-8107, United States
- Energy Sciences Institute, Yale University, P.O.
Box 27394, West Haven, Connecticut 06516-7394, United States
| | - Victor S. Batista
- Department of Chemistry, Yale University, P.O.
Box 208107, New Haven, Connecticut 06520-8107, United States
- Energy Sciences Institute, Yale University, P.O.
Box 27394, West Haven, Connecticut 06516-7394, United States
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