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High JS, Rego LGC, Jakubikova E. Quantum Dynamics Simulations of Excited State Energy Transfer in a Zinc–Free-Base Porphyrin Dyad. J Phys Chem A 2016; 120:8075-8084. [DOI: 10.1021/acs.jpca.6b05739] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Judah S. High
- Department
of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Luis G. C. Rego
- Department
of Physics, Federal University of Santa Catarina, Florianopolis 88040-900, Brazil
| | - Elena Jakubikova
- Department
of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, United States
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3
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Tsuchiya T, Jakubikova E. Role of Noncoplanar Conformation in Facilitating Ground State Hole Transfer in Oxidized Porphyrin Dyads. J Phys Chem A 2012; 116:10107-14. [DOI: 10.1021/jp307285z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Takashi Tsuchiya
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, United
States
| | - Elena Jakubikova
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, United
States
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Liu Y, Lin H, Li J, Dy JT, Tamaki K, Nakazaki J, Nakayama D, Nishiyama C, Uchida S, Kubo T, Segawa H. Ethynyl-linked push–pull porphyrin hetero-dimers for near-IR dye-sensitized solar cells: photovoltaic performances versus excited-state dynamics. Phys Chem Chem Phys 2012; 14:16703-12. [DOI: 10.1039/c2cp43165c] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Nieves-Bernier EJ, Diers JR, Taniguchi M, Holten D, Bocian DF, Lindsey JS. Probing the rate of hole transfer in oxidized synthetic chlorin dyads via site-specific (13)C-labeling. J Org Chem 2010; 75:3193-202. [PMID: 20429592 DOI: 10.1021/jo100527h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Understanding electronic communication among interacting constituents of multicomponent molecular architectures is important for rational design in diverse fields including artificial photosynthesis and molecular electronics. One strategy for examining ground-state hole/electron transfer in an oxidized tetrapyrrolic array relies on analysis of the hyperfine interactions observed in the EPR spectrum of the pi-cation radical. This strategy has been previously employed to probe the hole/electron-transfer process in oxidized multiporphyrin arrays of normal isotopic composition, wherein (1)H and (14)N serve as the hyperfine "clocks", and in arrays containing site-specific (13)C-labels, which serve as additional hyperfine clocks. Herein, the hyperfine-clock strategy is applied to dyads of dihydroporphyrins (chlorins). Chlorins are more closely related structurally to chlorophylls than are porphyrins. A de novo synthetic strategy has been employed to introduce a (13)C label at the 19-position of the chlorin macrocycle, which is a site of large electron/hole density and is accessible synthetically beginning with (13)C-nitromethane. The resulting singly (13)C-labeled chlorin was coupled with an unlabeled chlorin to give a dyad wherein a diphenylethyne linker spans the 10-positions of the two zinc chlorins. EPR studies of the monocations of both the natural abundance and (13)C-labeled zinc chlorin dyads and benchmark zinc chlorin monomers reveal that the time scale for hole/electron transfer is in the 4-7 ns range, which is 5-10-fold longer than that in analogous porphyrin arrays. The slower hole/electron transfer rate observed for the chlorin versus porphyrin dyads is attributed to the fact that the HOMO is a(1u)-like for the chlorins versus a(2u)-like for the porphyrins; the a(1u)-like orbital exhibits little (or no) electron/hole density at the site of linker attachment whereas the a(2u)-like orbital exhibits significant electron/hole density at this site. Collectively, the studies of the chlorin and porphyrin dyads provide insights into the structural features that influence the hole/electron-transfer process.
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Affiliation(s)
- Elías J Nieves-Bernier
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, USA
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6
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Diers JR, Taniguchi M, Holten D, Lindsey JS, Bocian DF. Probing the Rate of Hole Transfer in Oxidized Porphyrin Dyads Using Thallium Hyperfine Clocks. J Am Chem Soc 2010; 132:12121-32. [DOI: 10.1021/ja105082d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- James R. Diers
- Departments of Chemistry, University of California, Riverside, California 92521-0403, North Carolina State University, Raleigh, North Carolina 27695-8204, and Washington University, St. Louis, Missouri 63130-4889
| | - Masahiko Taniguchi
- Departments of Chemistry, University of California, Riverside, California 92521-0403, North Carolina State University, Raleigh, North Carolina 27695-8204, and Washington University, St. Louis, Missouri 63130-4889
| | - Dewey Holten
- Departments of Chemistry, University of California, Riverside, California 92521-0403, North Carolina State University, Raleigh, North Carolina 27695-8204, and Washington University, St. Louis, Missouri 63130-4889
| | - Jonathan S. Lindsey
- Departments of Chemistry, University of California, Riverside, California 92521-0403, North Carolina State University, Raleigh, North Carolina 27695-8204, and Washington University, St. Louis, Missouri 63130-4889
| | - David F. Bocian
- Departments of Chemistry, University of California, Riverside, California 92521-0403, North Carolina State University, Raleigh, North Carolina 27695-8204, and Washington University, St. Louis, Missouri 63130-4889
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7
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Song HE, Taniguchi M, Diers JR, Kirmaier C, Bocian DF, Lindsey JS, Holten D. Linker Dependence of Energy and Hole Transfer in Neutral and Oxidized Multiporphyrin Arrays. J Phys Chem B 2009; 113:16483-93. [DOI: 10.1021/jp9072558] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hee-eun Song
- Department of Chemistry, Washington University, St. Louis, Missouri 63130-4889, Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, and Department of Chemistry, University of California Riverside, Riverside, California 92521-0403
| | - Masahiko Taniguchi
- Department of Chemistry, Washington University, St. Louis, Missouri 63130-4889, Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, and Department of Chemistry, University of California Riverside, Riverside, California 92521-0403
| | - James R. Diers
- Department of Chemistry, Washington University, St. Louis, Missouri 63130-4889, Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, and Department of Chemistry, University of California Riverside, Riverside, California 92521-0403
| | - Christine Kirmaier
- Department of Chemistry, Washington University, St. Louis, Missouri 63130-4889, Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, and Department of Chemistry, University of California Riverside, Riverside, California 92521-0403
| | - David F. Bocian
- Department of Chemistry, Washington University, St. Louis, Missouri 63130-4889, Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, and Department of Chemistry, University of California Riverside, Riverside, California 92521-0403
| | - Jonathan S. Lindsey
- Department of Chemistry, Washington University, St. Louis, Missouri 63130-4889, Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, and Department of Chemistry, University of California Riverside, Riverside, California 92521-0403
| | - Dewey Holten
- Department of Chemistry, Washington University, St. Louis, Missouri 63130-4889, Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, and Department of Chemistry, University of California Riverside, Riverside, California 92521-0403
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