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Hamui L, Sánchez-Vergara ME. Innovative Implementation of an Alternative Tetrathiafulvene Derivative for Flexible Indium Phthalocyanine Chloride-Based Solar Cells. MICROMACHINES 2021; 12:mi12060633. [PMID: 34072414 PMCID: PMC8229926 DOI: 10.3390/mi12060633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/19/2021] [Accepted: 05/27/2021] [Indexed: 12/03/2022]
Abstract
Herein, we present the photovoltaic properties of an indium phthalocyanine chloride (InClPc)-based flexible planar heterojunction device, introducing the tetrathiafulvene derivative 4,4′-Dimethyl-5,5′-diphenyltetrathiafulvalene (DMDP-TTF) as the electron donor layer. UV-vis spectroscopy is widely used to characterize the electronic behavior of the InClPc/DMDP-TTF active layer. The interactions between the DMDP-TTF and phthalocyanine are predominantly intermolecular and the result of the aggregation of InClPc. Tauc bands were obtained at 1.41 and 2.8 eV; these energy peaks can result in a charge transfer ascribed to the transition from the DMDP-TTF to π-orbitals that are associated with the phthalocyanine ring or even with the same indium metal center. Conductive carbon (CC) was used for the cathode. Finally, an indium tin oxide (ITO)/InClPc/DMDP-TTF/CC device was fabricated by high-vacuum thermal evaporation onto a flexible substrate and the photovoltaic properties were evaluated. A diode type I-V curve behavior was observed with a photovoltaic response under illumination. A generated photocurrent of 2.25 × 10−2 A/cm2 was measured. A conductivity reduction with the incident photon energy from 1.61 × 10−7 S/cm to 1.43 × 10−7 S/cm is observed. The diode resistance presents two different behaviors with the applied voltage. A VTFL of 5.39 V, trap concentration of 7.74 × 1016 cm−3, and carrier mobility values of ~10−6 cm2/V s were calculated, showing improved characteristics via the innovative implementation of an alternative TTF-derivative, indicating that the DMDP-TTF has a strong interaction at the junction where free available states are increased, thus inducing higher mobilities due to the large number of π-orbitals, which indicates the feasibility of its use in solar cells technology.
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Liu Z, Xue L, Jia Y, Lou B, Yang J. Solvation effect and binding of rhaponticin with iron: a spectroscopic and DFT/TDDFT study. RSC Adv 2019; 9:11281-11288. [PMID: 35520260 PMCID: PMC9063015 DOI: 10.1039/c8ra10153a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 03/12/2019] [Indexed: 12/28/2022] Open
Abstract
In this article, both experimental and computational methods are employed to investigate the photophysics of rhaponticin (RH). The bathochromic shift was observed in absorption and fluorescence spectra with increasing solvent polarity, which implied that the charge transition of RH involved was π → π*. The results showed that RH possess strong intramolecular charge transfer (ICT), and the most important parameter to characterize the photophysical behavior of RH is the intermolecular hydrogen bonding ability of the solvent. The hydrogen bonding effect occurred at the localized electron-acceptor oxygen at the glycoside bond. Density functional theory (DFT) and time dependent density functional theory (TDDFT) were used to obtain the most stable structure, electronic excitation energy, dipole moments and charge distribution. The result was found to be 2.23 and 3.67 D in ground state and excited state respectively. Fluorescence quenching of RH owing to the photoinduced electron transfer (PET) is facilitated in alkaline media. The pKa value of RH was 6.39, which defined RH as a highly efficient “off–on” switcher. The effect of different metal ions on the fluorescence spectra of RH was also investigated, and the fluorescence quenching of RH depended on the nature of ions. The best performance was accomplished for binding with the Fe3+ ion. The interactions of RH with the Fe3+ ion were studied by FT-IR and HPLC, and the binding parameter was calculated by the Stern–Volmer equation. The results obtained reveal the binding activity of RH can make this a candidate as a good source of new agents for thalassemic patients. In this article, both experimental and computational methods are employed to investigate the photophysics of rhaponticin (RH).![]()
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Affiliation(s)
- Zhen Liu
- School of Chemical Engineering
- Xi'an University
- Xi'an
- China
| | - Ling Xue
- School of Chemical Engineering
- Xi'an University
- Xi'an
- China
| | - Yuan Jia
- School of Chemical Engineering
- Xi'an University
- Xi'an
- China
| | - Boyu Lou
- School of Chemical Engineering
- Xi'an University
- Xi'an
- China
| | - Juxiang Yang
- School of Chemical Engineering
- Xi'an University
- Xi'an
- China
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3
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Sako K, Hasegawa T, Onda H, Shiotsuka M, Watanabe M, Shinmyozu T, Tojo S, Fujitsuka M, Majima T, Hirao Y, Kubo T, Iwanaga T, Toyota S, Takemura H. Donor-Donor'-Acceptor Triads Based on [3.3]Paracyclophane with a 1,4-Dithiafulvene Donor and a Cyanomethylene Acceptor: Synthesis, Structure, and Electrochemical and Photophysical Properties. Chemistry 2018; 24:11407-11416. [PMID: 29845675 DOI: 10.1002/chem.201801774] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Indexed: 11/07/2022]
Abstract
Donor-donor'-acceptor triads (1, 2), based on [3.3]paracyclophane ([3.3]PCP) as a bridge, with electron-donating properties (D') using 1,4-dithiafulvene (DTF; TTF half unit) as a donor and dicyanomethylene (DCM; TCNE half unit) or an ethoxycarbonyl-cyanomethylene (ECM) as an acceptor were designed and synthesized. The pulse radiolysis study of 1 a in 1,2-dichloroethane allowed the clear assignment of the absorption bands of the DTF radical cation (1 a.+ ), whereas the absorption bands due to the DCM radical anion could not be observed by γ-ray radiolysis in 2-methyltetrahydrofuran rigid glass at 77 K. Electrochemical oxidation of 1 a first generates the DTF radical cation (1 a.+ ), the absorption bands of which are in agreement with those observed by a pulse radiolysis study, followed by dication (1 a2+ ). The ESR spectrum of 1 a.+ showed a symmetrical signal with fine structure and an ESR simulation predicted that the spin of 1 a.+ is delocalized over S and C atoms of the DTF moiety and the central C atom of the trimethylene bridge bearing the DTF moiety. Pulse radiolysis, ESR, and electrochemical studies indicate that the DTF radical cation of 1 a.+ is more stable than that of 6.+ , and the latter shows a strong tendency to dimerize. This result indicates that the [3.3]PCP moiety as a bridge can stabilize the DTF radical cation more than the 1,3-diphenylpropane moiety because of kinetic stability due to its rigid structure and the weak electronic interaction of DTF and DCM moieties through [3.3]PCP.
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Affiliation(s)
- Katsuya Sako
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya, 466-8555, Japan
| | - Tomoya Hasegawa
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya, 466-8555, Japan
| | - Hiroyuki Onda
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya, 466-8555, Japan
| | - Michito Shiotsuka
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya, 466-8555, Japan
| | - Motonori Watanabe
- International Institute for Carbon-Neutral Energy Research (I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Teruo Shinmyozu
- Department of Chemistry, National (Taiwan) University, No. 1, Section 4, Roosevelt Rd, Taipei, 10617, Taiwan
| | - Sachiko Tojo
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka, 567-0047, Japan
| | - Mamoru Fujitsuka
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka, 567-0047, Japan
| | - Tetsuro Majima
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka, 567-0047, Japan
| | - Yasukazu Hirao
- Department of Chemistry, Graduate School of Science, Osaka University, Machikaneyama 1-1, Toyonaka, Osaka, 560-0043, Japan
| | - Takashi Kubo
- Department of Chemistry, Graduate School of Science, Osaka University, Machikaneyama 1-1, Toyonaka, Osaka, 560-0043, Japan
| | - Tetsuo Iwanaga
- Department of Chemistry, Faculty of Science, Okayama University of Science, Ridaicho 1-1, Kita-ku, Okayama, 700-0005, Japan
| | - Shinji Toyota
- Department of Chemistry, School of Science, Tokyo Institute of Technology, Ookayama 2-12-1, Meguro-ku, Tokyo, 152-8550, Japan
| | - Hiroyuki Takemura
- Department of Chemical and Biological Science, Faculty of Science, Japan Women's University, Mejirodai 2-8-1, Bunkyo-ku, Tokyo, 112-8681, Japan
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Habib M, Saha S, Sarkar R, Pramanik A, Sarkar P, Pal S. Computational design of some TTF-substituted acene-based dyes for solar cell application using hollow ZnO quantum dot as acceptor. COMPUT THEOR CHEM 2018. [DOI: 10.1016/j.comptc.2018.05.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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5
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Hasegawa M, Endo Y, Honda Y, Mazaki Y. π-Extended Tetrathiafulvalene Analogue with Dicyano Dihydro-s-indacene Core Leading to Facile Oxidation, Metallic Luster, and Solvatochromic Properties. CHEM LETT 2017. [DOI: 10.1246/cl.170257] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Masashi Hasegawa
- Department of Chemistry, Graduate School of Science, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0373
| | - Yasutaka Endo
- Department of Chemistry, Graduate School of Science, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0373
| | - Yoshiki Honda
- Department of Chemistry, Graduate School of Science, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0373
| | - Yasuhiro Mazaki
- Department of Chemistry, Graduate School of Science, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0373
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Younes EA, Zhao Y. Functionalization of pentacene-5,7,12,14-tetraone with geminal enediyne and 1,3-dithiole groups. Org Chem Front 2017. [DOI: 10.1039/c7qo00041c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Pentacene-5,7,12,14-tetraone was subjected to selective olefination and cross-coupling reactions to yield a new class of pentacene-based π-conjugated systems with intriguing structural, electronic, and redox properties.
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Affiliation(s)
- Eyad A. Younes
- Department of Chemistry
- Memorial University
- St. John's
- Canada A1B 3X7
| | - Yuming Zhao
- Department of Chemistry
- Memorial University
- St. John's
- Canada A1B 3X7
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7
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Organic and perovskite solar cells: Working principles, materials and interfaces. J Colloid Interface Sci 2016; 488:373-389. [PMID: 27871725 DOI: 10.1016/j.jcis.2016.11.021] [Citation(s) in RCA: 129] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 11/04/2016] [Accepted: 11/07/2016] [Indexed: 11/23/2022]
Abstract
In the last decades organic solar cells (OSCs) have been considered as a promising photovoltaic technology with the potential to provide reasonable power conversion efficiencies combined with low cost and easy processability. Unexpectedly, Perovskite Solar Cells (PSCs) have experienced unprecedented rise in Power Conversion Efficiency (PCE) thus emerging as a highly efficient photovoltaic technology. OSCs and PSCs are two different kind of devices with distinct charge generation mechanism, which however share some similarities in the materials processing, thus standard strategies developed for OSCs are currently being employed in PSCs. In this article, we recapitulate the main processes in these two types of photovoltaic technologies with an emphasis on interfacial processes and interfacial modification, spotlighting the materials and newest approaches in the interfacial engineering. We discuss on the relevance of well-known materials coming from the OSCs field, which are now being tested in the PSCs field, while maintaining a focus on the importance of the material design for highly efficient, stable and accessible solar cells.
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8
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Villegas C, Wolf M, Joly D, Delgado JL, Guldi DM, Martín N. Coordinating Electron Transport Chains to an Electron Donor. Org Lett 2015; 17:5056-9. [DOI: 10.1021/acs.orglett.5b02542] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Carmen Villegas
- Departamento
de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Maximilian Wolf
- Department of Chemistry and Pharmacy & Interdisciplinary Center of Molecular Materials (ICMM), Friedrich-Alexander-University, Erlangen-Nuremberg Egerlandstr. 3, 91058 Erlangen, Germany
| | - Damien Joly
- IMDEA-Nanociencia, Facultad de
Ciencias, Módulo C-IX, 3a planta, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain
| | - Juan Luis Delgado
- POLYMAT, University of the Basque Country UPV/EHU, Avenida de Tolosa 72, 20018 Donostia-San Sebastian, Spain
- Ikerbasque, Basque
Foundation for Science, 48011 Bilbao, Spain
| | - Dirk M. Guldi
- Department of Chemistry and Pharmacy & Interdisciplinary Center of Molecular Materials (ICMM), Friedrich-Alexander-University, Erlangen-Nuremberg Egerlandstr. 3, 91058 Erlangen, Germany
| | - Nazario Martín
- Departamento
de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain
- IMDEA-Nanociencia, Facultad de
Ciencias, Módulo C-IX, 3a planta, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain
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9
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Fuertes P, García-Valverde M, Pascual R, Rodríguez T, Rojo J, García-Calvo J, Calvo P, Cuevas JV, García-Herbosa G, Torroba T. Structural Conformers of (1,3-Dithiol-2-ylidene)ethanethioamides: The Balance between Thioamide Rotation and Preservation of Classical Sulfur-Sulfur Hypervalent Bonds. J Org Chem 2014; 80:30-9. [PMID: 25414966 DOI: 10.1021/jo501473z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The reaction of N-(2-phthalimidoethyl)-N-alkylisopropylamines and S2Cl2 gave 4-N-(2-phthalimidoethyl)-N-alkylamino-5-chloro-1,2-dithiol-3-thiones that quantitatively cycloadded to dimethyl or diethyl acetylenedicarboxylate to give stable thioacid chlorides, which in turn reacted with one equivalent of aniline or a thiole to give thioanilides or a dithioester. Several compounds of this series showed atropisomers that were studied by a combination of dynamic NMR, simulation of the signals, conformational analysis by DFT methods, and single crystal X-ray diffraction, showing a good correlation between the theoretical calculations, the experimental values of energies, and the preferred conformations in the solid state. The steric hindering of the crowded substitution at the central amine group was found to be the reason for the presence of permanent atropisomers in this series of compounds and the cause of a unique disposition of the thioxo group at close-to-right angles with respect to the plane defined by the 1,3-dithiole ring in the dithiafulvene derivatives, thus breaking the sulfur-sulfur hypervalent bond that is always found in this kind of compounds.
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Affiliation(s)
- Pedro Fuertes
- Department of Chemistry, Faculty of Sciences, University of Burgos, 09001 Burgos, Spain
| | - María García-Valverde
- Department of Chemistry, Faculty of Sciences, University of Burgos, 09001 Burgos, Spain
| | - Ricardo Pascual
- Department of Chemistry, Faculty of Sciences, University of Burgos, 09001 Burgos, Spain
| | - Teresa Rodríguez
- Department of Chemistry, Faculty of Sciences, University of Burgos, 09001 Burgos, Spain
| | - Josefa Rojo
- Department of Chemistry, Faculty of Sciences, University of Burgos, 09001 Burgos, Spain
| | - José García-Calvo
- Department of Chemistry, Faculty of Sciences, University of Burgos, 09001 Burgos, Spain
| | - Patricia Calvo
- Department of Chemistry, Faculty of Sciences, University of Burgos, 09001 Burgos, Spain
| | - José V Cuevas
- Department of Chemistry, Faculty of Sciences, University of Burgos, 09001 Burgos, Spain
| | | | - Tomás Torroba
- Department of Chemistry, Faculty of Sciences, University of Burgos, 09001 Burgos, Spain
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10
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Echeverry CA, Herranz MÁ, Ortiz A, Insuasty B, Martín N. Rhodanine-3-acetic acid and π-extended tetrathiafulvalene (exTTF) based systems for dye-sensitized solar cells. NEW J CHEM 2014. [DOI: 10.1039/c4nj01261e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Calbo J, Viruela PM, Ortí E. Theoretical insight on novel donor-acceptor exTTF-based dyes for dye-sensitized solar cells. J Mol Model 2014; 20:2188. [PMID: 24643466 DOI: 10.1007/s00894-014-2188-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Accepted: 02/24/2014] [Indexed: 11/26/2022]
Abstract
A thorough density functional theory study is performed for the three carboxyl-based derivatives of the exTTF-TCF chromophore, where the π-extended tetrathiafulvalene (exTTF) electron-donor is linked to the tricyanofuran (TCF) electron-acceptor through an ethylene bridge, as dyes for dye-sensitized solar cells. Calculations predict that the carboxyl group in the acceptor moiety adopts an adequate orientation for an efficient anchoring on the semiconductor TiO₂ surface. The carboxylic acid group holds a negative charge twice larger than the cyano moiety that favors the electron injection to the semiconductor. Time-dependent calculations allow for the assignment of the absorption bands in the UV-vis spectrum of exTTF-TCF and confirm the presence of two low-lying charge-transfer electronic transitions that account for the moderately-intense absorption in the 450-800 nm range. The striking optical absorption properties of exTTF-TCF are preserved for the carboxylic analogues. Finally, periodic calculations show relevant topological differences between the carboxylic derivatives anchored on the TiO₂ surface, which would notably influence in the power conversion efficiency of a dye-sensitized solar cell.
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Affiliation(s)
- Joaquín Calbo
- Instituto de Ciencia Molecular, Universidad de Valencia, 46980, Paterna, Spain
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13
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Fuertes P, García-Valverde M, Cuevas JV, Díaz de Greñu B, Rodríguez T, Rojo J, Torroba T. Synthesis of pyrrolidine-fused 1,3-dithiolane oligomers by the cycloaddition of polycyclic dithiolethiones to maleimides and evaluation as mercury(II) indicators. J Org Chem 2014; 79:2213-25. [PMID: 24511994 DOI: 10.1021/jo500076c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The scandium triflate-catalyzed cycloaddition reaction of polycyclic 1,2-dithiolethiones to maleimides is described. The reaction constitutes an easy approach to linear as well as branched oligomeric cis-fused dihydro[1,3]dithiolo[4,5-c]pyrrole-4,6-dione rings interconnected by 3,5-diylidenethiomorpholine-2,6-dithione or ylidene-6-thioxo[1,2]dithiolo[3,4-b][1,4]thiazin-3-one groups. The presence of highly colored, highly polarized push-pull α,β-unsaturated thione groups in their structures make these compounds sensitive to the presence of mercury(II) cation in organic or mixed organic/aqueous solvents.
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Affiliation(s)
- Pedro Fuertes
- Department of Chemistry, Faculty of Sciences, University of Burgos , 09001 Burgos, Spain
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14
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Nguyen MH, Nguyen VH, Yip JHK. Sequence-Specific Synthesis of Platinum-Conjugated Trichromophoric Energy Cascades of Anthracene, Tetracene, and Pentacene and Fluorescent “Black Chromophores”. Organometallics 2013. [DOI: 10.1021/om400578t] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Minh-Hai Nguyen
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543
| | - Van Ha Nguyen
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543
| | - John H. K. Yip
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543
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15
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Bouit PA, Infantes L, Calbo J, Viruela R, Ortí E, Delgado JL, Martín N. Efficient Light Harvesters Based on the 10-(1,3-Dithiol-2-ylidene)anthracene Core. Org Lett 2013; 15:4166-9. [DOI: 10.1021/ol401841u] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pierre-Antoine Bouit
- IMDEA-Nanociencia, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain, Instituto de Química-Física “Rocasolano”, CSIC, 28006 Madrid, Spain, Instituto de Ciencia Molecular, Universidad de Valencia, 46980 Paterna, Spain, and Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Lourdes Infantes
- IMDEA-Nanociencia, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain, Instituto de Química-Física “Rocasolano”, CSIC, 28006 Madrid, Spain, Instituto de Ciencia Molecular, Universidad de Valencia, 46980 Paterna, Spain, and Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Joaquín Calbo
- IMDEA-Nanociencia, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain, Instituto de Química-Física “Rocasolano”, CSIC, 28006 Madrid, Spain, Instituto de Ciencia Molecular, Universidad de Valencia, 46980 Paterna, Spain, and Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Rafael Viruela
- IMDEA-Nanociencia, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain, Instituto de Química-Física “Rocasolano”, CSIC, 28006 Madrid, Spain, Instituto de Ciencia Molecular, Universidad de Valencia, 46980 Paterna, Spain, and Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Enrique Ortí
- IMDEA-Nanociencia, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain, Instituto de Química-Física “Rocasolano”, CSIC, 28006 Madrid, Spain, Instituto de Ciencia Molecular, Universidad de Valencia, 46980 Paterna, Spain, and Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Juan Luis Delgado
- IMDEA-Nanociencia, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain, Instituto de Química-Física “Rocasolano”, CSIC, 28006 Madrid, Spain, Instituto de Ciencia Molecular, Universidad de Valencia, 46980 Paterna, Spain, and Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Nazario Martín
- IMDEA-Nanociencia, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain, Instituto de Química-Física “Rocasolano”, CSIC, 28006 Madrid, Spain, Instituto de Ciencia Molecular, Universidad de Valencia, 46980 Paterna, Spain, and Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
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Sun Y, Liang X, Zhao Y, Fan J. Solvent effects on the absorption and fluorescence spectra of rhaponticin: experimental and theoretical studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 102:194-199. [PMID: 23220535 DOI: 10.1016/j.saa.2012.10.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2012] [Revised: 10/05/2012] [Accepted: 10/10/2012] [Indexed: 06/01/2023]
Abstract
Rhaponticin (RH) possesses a variety of pharmacological activities including potent antitumor, antitumor-promoting, antithrombotic, antioxidant and vasorelaxant effects. The fundamental photophysics of RH is not well understood. In this work, solvent effect on the photoluminescence behavior of RH was studied by fluorescence and absorption spectra. The bathchromic shift was observed in absorption and fluorescence spectra with the increase of solvents polarity, which implied that transition involved was π→π. A quantitative estimation of the contribution from different solvatochromic parameters, like normalized transition energy value (E(T)(N)), was made using the linear stokes shift (Δν) relationship based on the Lippert-Suppan equation. The ground state and excited state dipole moments were calculated by quantum-mechanical second-order perturbation method as a function of the dielectric constant (ε) and refractive index (n). The result was found to be 2.23 and 3.67D in ground state and excited state respectively. The density functional theory (DFT) was used to obtain the most stable structure, electronic excitation energy, dipole moments and charge distribution. The analysis revealed that the RH exhibited strong photoinduced intramolecular charge transfer (ICT), and the intermolecular hydrogen bonding ability of the solvent was the most important parameter to characterize the photophysics behavior of RH. The hydrogen bonding effect occurred at the localized electron-acceptor oxygen at the glycoside bond. The experimental and theoretical results would help us better understand the photophysical properties of RH.
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Affiliation(s)
- Yang Sun
- Department of Chemistry & Chemical Engineering, Xi'an University of Arts and Science, No. 168 Taibai South Road, Xi'an, Shaanxi 710065, China.
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García R, Herranz MÁ, Torres MR, Bouit PA, Delgado JL, Calbo J, Viruela PM, Ortí E, Martín N. Tuning the Electronic Properties of Nonplanar exTTF-Based Push–Pull Chromophores by Aryl Substitution. J Org Chem 2012; 77:10707-17. [DOI: 10.1021/jo302047m] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Raúl García
- Departamento de Química
Orgánica, Facultad de Química, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - M Ángeles Herranz
- Departamento de Química
Orgánica, Facultad de Química, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - M Rosario Torres
- Centro de Asistencia a la Investigación
de Rayos-X, Facultad de Ciencias Químicas, Universidad Complutense, Ciudad Universitaria, 28040 Madrid, Spain
| | - Pierre-Antoine Bouit
- IMDEA-Nanociencia, Facultad de
Ciencias, Universidad Autónoma,
Cantoblanco, 28049 Madrid, Spain
| | - Juan Luis Delgado
- IMDEA-Nanociencia, Facultad de
Ciencias, Universidad Autónoma,
Cantoblanco, 28049 Madrid, Spain
| | - Joaquín Calbo
- Instituto de Ciencia Molecular, Universidad de Valencia, 46980 Paterna, Spain
| | - Pedro M. Viruela
- Instituto de Ciencia Molecular, Universidad de Valencia, 46980 Paterna, Spain
| | - Enrique Ortí
- Instituto de Ciencia Molecular, Universidad de Valencia, 46980 Paterna, Spain
| | - Nazario Martín
- Departamento de Química
Orgánica, Facultad de Química, Universidad Complutense de Madrid, 28040 Madrid, Spain
- IMDEA-Nanociencia, Facultad de
Ciencias, Universidad Autónoma,
Cantoblanco, 28049 Madrid, Spain
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18
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Bouit PA, Marszalek M, Humphry-Baker R, Viruela R, Ortí E, Zakeeruddin SM, Grätzel M, Delgado JL, Martín N. Donor-π-Acceptors Containing the 10-(1,3-Dithiol-2-ylidene)anthracene Unit for Dye-Sensitized Solar Cells. Chemistry 2012; 18:11621-9. [DOI: 10.1002/chem.201201022] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Indexed: 11/07/2022]
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Molina-Ontoria A, García R, Gouloumis A, Giacalone F, Torres MR, Martín N. A Straightforward Electroactive π-Extended Tetrathiafulvalene (exTTF) Building Block. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200115] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Cho N, Kim J, Song K, Lee JK, Ko J. Synthesis and characterization of push–pull organic semiconductors with various acceptors for solution-processed small molecule organic solar cells. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.03.061] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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21
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Esteban SG, de la Cruz P, Aljarilla A, Arellano LM, Langa F. Panchromatic push-pull chromophores based on triphenylamine as donors for molecular solar cells. Org Lett 2011; 13:5362-5. [PMID: 21913659 DOI: 10.1021/ol202242j] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Two new push-pull chromophores based on triphenylamine as donor and 2-carboxymethyl-2-cyanomethylenethiazole as acceptor have been synthesized. Both exhibit strong light absorption covering from 300 to 800 nm. Electrochemical studies show HOMO-LUMO gaps of 2.01 and 1.54 eV, making, together with the panchromatic absorption, these systems promising materials in the field of molecular photovoltaic devices.
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Affiliation(s)
- Sandra Gómez Esteban
- Instituto de Nanociencia, Nanotecnología y Materiales Moleculares (INAMOL), Universidad de Castilla-La Mancha, 45071-Toledo, Spain
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Erten-Ela S, Brendel J, Thelakkat M. Solid-state dye-sensitized solar cells fabricated with nanoporous TiO2 and TPD dyes: Analysis of penetration behavior and I–V characteristics. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.05.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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