51
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Panda MK, Ladomenou K, Coutsolelos AG. Porphyrins in bio-inspired transformations: Light-harvesting to solar cell. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.04.041] [Citation(s) in RCA: 184] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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52
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Ladomenou K, Lazarides T, Panda MK, Charalambidis G, Daphnomili D, Coutsolelos AG. Meso-substituted Porphyrin Derivatives via Palladium-Catalyzed Amination Showing Wide Range Visible Absorption: Synthesis and Photophysical Studies. Inorg Chem 2012; 51:10548-56. [DOI: 10.1021/ic300714n] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Kalliopi Ladomenou
- University of Crete, Department
of Chemistry, Laboratory of Bioinorganic Chemistry, PO Box 2208, Voutes
Campus, 71003, Heraklion, Greece
| | - Theodore Lazarides
- University of Crete, Department
of Chemistry, Laboratory of Bioinorganic Chemistry, PO Box 2208, Voutes
Campus, 71003, Heraklion, Greece
| | - Manas K. Panda
- University of Crete, Department
of Chemistry, Laboratory of Bioinorganic Chemistry, PO Box 2208, Voutes
Campus, 71003, Heraklion, Greece
| | - Georgios Charalambidis
- University of Crete, Department
of Chemistry, Laboratory of Bioinorganic Chemistry, PO Box 2208, Voutes
Campus, 71003, Heraklion, Greece
| | - Dimitra Daphnomili
- University of Crete, Department
of Chemistry, Laboratory of Bioinorganic Chemistry, PO Box 2208, Voutes
Campus, 71003, Heraklion, Greece
| | - Athanassios G. Coutsolelos
- University of Crete, Department
of Chemistry, Laboratory of Bioinorganic Chemistry, PO Box 2208, Voutes
Campus, 71003, Heraklion, Greece
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53
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Li Z, Jiang YY, Yeagley AA, Bour JP, Liu L, Chruma JJ, Fu Y. Mechanism of the Pd-catalyzed decarboxylative allylation of α-imino esters: decarboxylation via free carboxylate ion. Chemistry 2012; 18:14527-38. [PMID: 23002017 DOI: 10.1002/chem.201201425] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2012] [Revised: 07/09/2012] [Indexed: 11/09/2022]
Abstract
The Pd-catalyzed decarboxylative allylation of α-(diphenylmethylene)imino esters (1) or allyl diphenylglycinate imines (2) is an efficient method to construct new C(sp(3))-C(sp(3)) bonds. The detailed mechanism of this reaction was studied by theoretical calculations [ONIOM(B3LYP/LANL2DZ+p:PM6)] combined with experimental observations. The overall catalytic cycle was found to consist of three steps: oxidative addition, decarboxylation, and reductive allylation. The oxidative addition of 1 to [(dba)Pd(PPh(3))(2)] (dba = dibenzylideneacetone) produces an allylpalladium cation and a carboxylate anion with a low activation barrier of +9.1 kcal mol(-1). The following rate-determining decarboxylation proceeds via a solvent-exposed α-imino carboxylate anion rather than an O-ligated allylpalladium carboxylate with an activation barrier of +22.7 kcal mol(-1). The 2-azaallyl anion generated by this decarboxylation attacks the face of the allyl ligand opposite to the Pd center in an outer-sphere process to produce major product 3, with a lower activation barrier than that of the minor product 4. A positive linear Hammett correlation [ρ = 1.10 for the PPh(3) ligand] with the observed regioselectivity (3 versus 4) supports an outer-sphere pathway for the allylation step. When Pd combined with the bis(diphenylphosphino)butane (dppb) ligand is employed as a catalyst, the decarboxylation still proceeds via the free carboxylate anion without direct assistance of the cationic Pd center. Consistent with experimental observations, electron-withdrawing substituents on 2 were calculated to have lower activation barriers for decarboxylation and, thus, accelerate the overall reaction rates.
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Affiliation(s)
- Zhe Li
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, PR China
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54
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Xiao Z, Ye G, Liu Y, Chen S, Peng Q, Zuo Q, Ding L. Pushing fullerene absorption into the near-IR region by conjugately fusing oligothiophenes. Angew Chem Int Ed Engl 2012; 51:9038-41. [PMID: 22887131 DOI: 10.1002/anie.201203981] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Revised: 06/27/2012] [Indexed: 11/10/2022]
Abstract
Fusing two in one: The π-electron systems of fullerene and an oligothiophene were conjugately fused by an open-cage process. This led to novel fullerene-oligothiophene chromophores with significantly enhanced light-absorbing capability, which covers a wide spectral range. The fullerene band gap could be tuned to about 1 eV by a chemical approach.
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Affiliation(s)
- Zuo Xiao
- National Center for Nanoscience and Technology, Beijing 100190, China
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55
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Xiao Z, Ye G, Liu Y, Chen S, Peng Q, Zuo Q, Ding L. Pushing Fullerene Absorption into the Near-IR Region by Conjugately Fusing Oligothiophenes. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201203981] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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56
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Białkowski B, Stepanenko Y, Nejbauer M, Radzewicz C, Waluk J. The dynamics and origin of the unrelaxed fluorescence of free-base tetraphenylporphyrin. J Photochem Photobiol A Chem 2012. [DOI: 10.1016/j.jphotochem.2011.10.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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57
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Ou Z, Jin H, Gao Y, Li S, Li H, Li Y, Wang X, Yang G. Synthesis and Photophysical Properties of a Supramolecular Host–Guest Assembly Constructed by Fullerenes and Tryptamine Modified Hypocrellin. J Phys Chem B 2012; 116:2048-58. [DOI: 10.1021/jp209969f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhize Ou
- Department of Applied Chemistry,
School of Science, Northwestern Polytechnical University, Xi’an, 710072, People’s Republic of China
| | - Helin Jin
- Department of Applied Chemistry,
School of Science, Northwestern Polytechnical University, Xi’an, 710072, People’s Republic of China
| | - Yunyan Gao
- Department of Applied Chemistry,
School of Science, Northwestern Polytechnical University, Xi’an, 710072, People’s Republic of China
| | - Shayu Li
- CAS Key laboratory of Photochemistry,
Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Haixia Li
- Department of Applied Chemistry,
School of Science, Northwestern Polytechnical University, Xi’an, 710072, People’s Republic of China
| | - Yi Li
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, People’s
Republic of China
| | - Xuesong Wang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, People’s
Republic of China
| | - Guoqiang Yang
- CAS Key laboratory of Photochemistry,
Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
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58
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Fukuzumi S, Ohkubo K, D'Souza F, Sessler JL. Supramolecular electron transfer by anion binding. Chem Commun (Camb) 2012; 48:9801-15. [DOI: 10.1039/c2cc32848h] [Citation(s) in RCA: 150] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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59
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Gust D, Moore TA, Moore AL. Realizing artificial photosynthesis. Faraday Discuss 2012; 155:9-26; discussion 103-14. [DOI: 10.1039/c1fd00110h] [Citation(s) in RCA: 180] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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60
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Imaoka T, Inoue N, Yamamoto K. Electron-transfer through potential gradient based on a dendrimer architecture. Chem Commun (Camb) 2012; 48:7235-7. [DOI: 10.1039/c2cc31954c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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61
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D’Souza F, Amin AN, El-Khouly ME, Subbaiyan NK, Zandler ME, Fukuzumi S. Control over Photoinduced Energy and Electron Transfer in Supramolecular Polyads of Covalently linked azaBODIPY-Bisporphyrin ‘Molecular Clip’ Hosting Fullerene. J Am Chem Soc 2011; 134:654-64. [DOI: 10.1021/ja209718g] [Citation(s) in RCA: 137] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Francis D’Souza
- Department of Chemistry, University of North Texas, 1155 Union Circle, #305070,
Denton, Texas 76203-5017, United States
- Department of Chemistry, Wichita State University, 1845, Fairmount, Wichita,
Kansas 67260-0051, United States
| | - Anu N. Amin
- Department of Chemistry, Wichita State University, 1845, Fairmount, Wichita,
Kansas 67260-0051, United States
| | - Mohamed E. El-Khouly
- Graduate School of Engineering, Osaka University, ALCA, Japan Science and Technology
Agency (JST), Suita, Osaka 565-0871, Japan
| | - Navaneetha K. Subbaiyan
- Department of Chemistry, University of North Texas, 1155 Union Circle, #305070,
Denton, Texas 76203-5017, United States
| | - Melvin E. Zandler
- Department of Chemistry, Wichita State University, 1845, Fairmount, Wichita,
Kansas 67260-0051, United States
| | - Shunichi Fukuzumi
- Graduate School of Engineering, Osaka University, ALCA, Japan Science and Technology
Agency (JST), Suita, Osaka 565-0871, Japan
- Department of Bioinspired Science, Ewha Woman’s University, Seoul, 120-750, Korea
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62
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Neupane B, Dang NC, Kelley RF, Wasielewski MR, Jankowiak R. Low-Temperature Frequency Domain Study of Excitation Energy Transfer in Ethynyl-Linked Chlorophyll Trefoils and Aggregates. J Phys Chem B 2011; 115:10391-9. [DOI: 10.1021/jp2027252] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bhanu Neupane
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, United States
| | - Nhan C. Dang
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, United States
| | - Richard F. Kelley
- Department of Chemistry and Argonne-Northwestern Solar Energy Research (ANSER) Center, Northwestern University, Evanston, Illinois 60208, United States
| | - Michael R. Wasielewski
- Department of Chemistry and Argonne-Northwestern Solar Energy Research (ANSER) Center, Northwestern University, Evanston, Illinois 60208, United States
| | - Ryszard Jankowiak
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, United States
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63
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Tokuji S, Maeda C, Yorimitsu H, Osuka A. New Synthetic Strategy for Diporphyrins: Pinacol Coupling–Rearrangement. Chemistry 2011; 17:7154-7. [DOI: 10.1002/chem.201100872] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Indexed: 11/10/2022]
Affiliation(s)
- Sumito Tokuji
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo‐ku, Kyoto 606‐8502 (Japan), Fax: (+81) 75‐753‐3970
| | - Chihiro Maeda
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo‐ku, Kyoto 606‐8502 (Japan), Fax: (+81) 75‐753‐3970
| | - Hideki Yorimitsu
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo‐ku, Kyoto 606‐8502 (Japan), Fax: (+81) 75‐753‐3970
| | - Atsuhiro Osuka
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo‐ku, Kyoto 606‐8502 (Japan), Fax: (+81) 75‐753‐3970
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