1
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Belles E, Rabilloud F, Kuleff AI, Despré V. Size Effect in Correlation-Driven Charge Migration in Correlation Bands of Alkyne Chains. J Phys Chem A 2024; 128:163-169. [PMID: 38150589 DOI: 10.1021/acs.jpca.3c06776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Correlation-driven charge migration initiated by inner-valence ionization leading to the population of the correlation bands of alkyne chains containing between 4 and 12 carbon atoms is explored through ab initio simulations. Scaling laws are observed, both for the time scale of the charge migration and for the slope of the density of states of the correlation bands. These can be used for predicting the relaxation time scale in much larger systems from the same molecular family and for finding promising candidates for the development of an attochemistry scheme taking advantages of the specificity of the dynamics in the correlation bands of molecules.
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Affiliation(s)
- Enguerran Belles
- Université de Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, UMR5306, Villeurbanne F-69622, France
| | - Franck Rabilloud
- Université de Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, UMR5306, Villeurbanne F-69622, France
| | - Alexander I Kuleff
- Theoretische Chemie, PCI, Universität Heidelberg, Im Neuenheimer Feld 229, Heidelberg D-69120, Germany
| | - Victor Despré
- Université de Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, UMR5306, Villeurbanne F-69622, France
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2
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Liao Q, Li Q, Li Z. The Key Role of Molecular Packing in Luminescence Property: From Adjacent Molecules to Molecular Aggregates. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2306617. [PMID: 37739004 DOI: 10.1002/adma.202306617] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/11/2023] [Indexed: 09/24/2023]
Abstract
The luminescence materials act as the key components in many functional devices, as well as the detection and imaging systems, which can be permeated in each aspect of modern life, and attract more and more attention for the creative technology and applications. In addition to the diverse properties of organic luminogens, the multiple molecular packing at aggregated states frequently offers new and/or exciting performance. However, there still lacks comprehensive analysis of molecular packing in these organic materials, resulting in an increased gap between molecular design and practical applications. In this review, from the basic knowledge of organic compounds as single molecules, to the discernable property of excimer, charge transfer (CT) complex or self-assembly systems by adjacent molecules, and finally to the opto-electronic performance of molecular aggregates, the relevant factors to molecular packing and practical applications are discussed.
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Affiliation(s)
- Qiuyan Liao
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, TaiKang Center for Life and Medical Sciences, Department of Chemistry, Wuhan University, Wuhan, 430072, China
| | - Qianqian Li
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, TaiKang Center for Life and Medical Sciences, Department of Chemistry, Wuhan University, Wuhan, 430072, China
| | - Zhen Li
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, TaiKang Center for Life and Medical Sciences, Department of Chemistry, Wuhan University, Wuhan, 430072, China
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3
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Review of Fe-based spin crossover metal complexes in multiscale device architectures. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2022.121168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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4
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Früchtl H, Robertson LM, van Mourik T. Electronic excitation and electric field as switching mechanism for a single-molecule switch. Mol Phys 2022. [DOI: 10.1080/00268976.2022.2108517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Herbert Früchtl
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, United Kingdom
| | - Lorna M. Robertson
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, United Kingdom
| | - Tanja van Mourik
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, United Kingdom
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5
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Frogley BJ, Hill AF, Welsh SS. Bimetallic ethynylanthracenyl functionalised carbynes. Chem Commun (Camb) 2021; 57:13353-13356. [PMID: 34821244 DOI: 10.1039/d1cc06142a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Mono- and bimetallic anthracenes functionalised by alkynyl and alkylidynyl substituents are obtained via sequential cross-coupling reactions of the 9-bromoanthracenyl carbyne [W{CC(C6H4)2CBr}(CO)2(Tp*)].
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Affiliation(s)
- Benjamin J Frogley
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory, ACT 2601, Australia.
| | - Anthony F Hill
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory, ACT 2601, Australia.
| | - Steven S Welsh
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory, ACT 2601, Australia.
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6
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Guschlbauer J, Shaughnessy KH, Pietrzak A, Chung MC, Sponsler MB, Kaszyński P. [closo-B10H8-1,10-(CN)2]2– as a Conduit of Electronic Effects: Comparative Studies of Fe···Fe Communication in [{(η5-Cp)(dppe)Fe}2{μ2-(NC-X-CN)}]n+ (n = 0, 2). Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00269] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jannick Guschlbauer
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-001 Łódź, Poland
| | - Kevin H. Shaughnessy
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-001 Łódź, Poland
- Department of Chemistry and Biochemistry, University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Anna Pietrzak
- Faculty of Chemistry, Łódź University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
| | - Min-Chul Chung
- Department of Chemistry, Syracuse University, Syracuse, New York 13244, United States
| | - Michael B. Sponsler
- Department of Chemistry, Syracuse University, Syracuse, New York 13244, United States
| | - Piotr Kaszyński
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-001 Łódź, Poland
- Department of Chemistry, Middle Tennessee State University, Murfreesboro, Tennessee 37132, United States
- Faculty of Chemistry, University of Łódź, Tamka 12, 91-403 Łódź, Poland
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7
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Mayorga-Burrezo P, Bejarano F, Calbo J, Zhao X, De Sousa JA, Lloveras V, Bryce MR, Ortí E, Veciana J, Rovira C, Crivillers N. Allocation of Ambipolar Charges on an Organic Diradical with a Vinylene-Phenylenediyne Bridge. J Phys Chem Lett 2021; 12:6159-6164. [PMID: 34184906 DOI: 10.1021/acs.jpclett.1c01565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Two redox and magnetically active perchlorotriphenylmethyl (•PTM) radical units have been connected as end-capping groups to a bis(phenylene)diyne chain through vinylene linkers. Negative and positive charged species have been generated, and the influence of the bridge on their stabilization is discussed. Partial reduction of the electron-withdrawing •PTM radicals results in a class-II mixed-valence system with the negative charge located on the terminal PTM units, proving the efficiency of the conjugated chain for the electron transport between the two terminal sites. Counterintuitively, the oxidation process does not occur along the electron-rich bridge but on the vinylene units. The •PTM radicals play a key role in the stabilization of the cationic species, promoting the generation of quinoidal ring segments.
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Affiliation(s)
- Paula Mayorga-Burrezo
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193 Bellaterra, Spain
| | - Francesc Bejarano
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193 Bellaterra, Spain
| | - Joaquín Calbo
- Instituto de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán, 2, 46980 Paterna, Spain
| | - Xiaotao Zhao
- Chemistry Department, Durham University, Durham DH1 3LE, United Kingdom
| | - J Alejandro De Sousa
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193 Bellaterra, Spain
- Laboratorio de Electroquímica, Departamento de Química, Facultad de Ciencias, Universidad de los Andes, 5101 Mérida, Venezuela
| | - Vega Lloveras
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193 Bellaterra, Spain
| | - Martin R Bryce
- Chemistry Department, Durham University, Durham DH1 3LE, United Kingdom
| | - Enrique Ortí
- Instituto de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán, 2, 46980 Paterna, Spain
| | - Jaume Veciana
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193 Bellaterra, Spain
| | - Concepció Rovira
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193 Bellaterra, Spain
| | - Núria Crivillers
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193 Bellaterra, Spain
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8
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Schmiel S, Butenschön H. New π‐Extended 1,1′‐Disubstituted Ferrocenes with Thioate and Dithioate End Groups. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100335] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sinem‐Fatma Schmiel
- Institut für Organische Chemie Leibniz Universität Hannover Schneiderberg 1B 30167 Hannover Germany
| | - Holger Butenschön
- Institut für Organische Chemie Leibniz Universität Hannover Schneiderberg 1B 30167 Hannover Germany
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9
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Bartlett MJ, Frogley BJ, Hill AF, Sharma M, Smith MK, Ward JS. Hydrogenating an organometallic carbon chain: buten-yn-diyl (CH[double bond, length as m-dash]CHC[triple bond, length as m-dash]C) as a missing link. Dalton Trans 2019; 48:16534-16554. [PMID: 31576871 DOI: 10.1039/c9dt03229k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The sequential reaction of [Ru(C[triple bond, length as m-dash]CC[triple bond, length as m-dash]CH)Cl(CO)2(PPh3)2] with [Ru(CO)2(PPh3)3], and N-chlorosuccinimide affords the binuclear tetracarbido complex [Ru2(μ-C[triple bond, length as m-dash]CC[triple bond, length as m-dash]C)Cl2(CO)4(PPh3)4]. This may be compared with the first example of a butenyndiyl bridged bimetallic complex [Ru2(μ-CH[double bond, length as m-dash]CHC[triple bond, length as m-dash]C)Cl2(CO)4(PPh3)4] which is obtained from the reaction of [Ru(C[triple bond, length as m-dash]CC[triple bond, length as m-dash]CH)Cl(CO)2(PPh3)2] with [RuHCl(CO)(PPh3)3] followed by carbonylation. Characterisational data are discussed with reference to constituent model complexes [Ru(C[triple bond, length as m-dash]CH)Cl(CO)2(PPh3)2] and [Ru(CH[double bond, length as m-dash]CH2)Cl(CO)2(PPh3)2] in addition to DFT analysis of the bonding in the complexes [Ru2(μ-L)Cl2(CO)4(PMe3)4] (L = C[triple bond, length as m-dash]C-C[triple bond, length as m-dash]C, CH[double bond, length as m-dash]CHC[triple bond, length as m-dash]C, CH[double bond, length as m-dash]CH-CH[double bond, length as m-dash]CH). A range of other tetracarbido complexes which may be prepared from [RuCl(C[triple bond, length as m-dash]CC[triple bond, length as m-dash]CH)(CO)2(PPh3)2] is also described and includes [RuAu(μ-C4)Cl(CO)3(PPh3)3], [RuIr(μ-C4)Cl(CO)3(PPh3)4], [RuIr(μ-C4)H(NCMe)(CO)3(PPh3)4]BF4, [RuIr(μ-C4)Cl(η2-O2)(CO)3(PPh3)4], [Ru2Hg(μ-C4)2Cl2(CO)4(PPh3)4], [Ru2Pt(μ-C4)2Cl2(CO)4(PPh3)6] and [Ru2(μ-C4)HCl(CO)4(PPh3)4].
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Affiliation(s)
- Michael J Bartlett
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory ACT 2601, Australia.
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10
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Pohl V, Marsoner Steinkasserer LE, Tremblay JC. Imaging Time-Dependent Electronic Currents through a Graphene-Based Nanojunction. J Phys Chem Lett 2019; 10:5387-5394. [PMID: 31448920 DOI: 10.1021/acs.jpclett.9b01732] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
To assist the design of efficient molecular junctions, a precise understanding of the charge transport mechanisms through nanoscaled devices is of prime importance. In the present contribution, we present time- and space-resolved electron transport simulations through a nanojunction under time-dependent potential biases. We use the driven Liouville-von Neumann approach to simulate the time evolution of the one-electron density matrix under nonequilibrium conditions, which allows us to capture the ultrafast scattering dynamics, the electronic relaxation process, and the quasi-stationary current limit from the same simulation. Using local projection techniques, we map the coherent electronic current density, unraveling insightful mechanistic details of the transport on time scales ranging from atto- to picoseconds. Memory effects dominate the early time transport process, and they reveal different current patterns on short time scales in comparison to those in the long-time regime. For nanotransistors with high switching rates, the scattering perspective on electron transport should thus be favored.
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Affiliation(s)
- Vincent Pohl
- Quantum on Demand , c/o Freie Universität Berlin , Altensteinstr. 40 , 14195 Berlin , Germany
- Institut für Chemie und Biochemie , Freie Universität Berlin , Takustr. 3 , 14195 Berlin , Germany
| | | | - Jean Christophe Tremblay
- Laboratoire de Physique et Chimie Théoriques , CNRS-Université de Lorraine , UMR 7019, ICPM, 1 Bd Arago , 57070 Metz , France
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11
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Aramburu-Trošelj BM, Oviedo PS, Ramírez-Wierzbicki I, Baraldo LM, Cadranel A. Inversion of donor–acceptor roles in photoinduced intervalence charge transfers. Chem Commun (Camb) 2019; 55:7659-7662. [DOI: 10.1039/c9cc03483h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Upon MLCT photoexcitation, {(tpy)Ru} becomes the electron acceptor in the mixed valence {(tpy˙−)RuIII−δ-NC-MII+δ} moiety, reversing its role as the electron donor in the ground-state mixed valence analogue.
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Affiliation(s)
- Bruno M. Aramburu-Trošelj
- Universidad de Buenos Aires
- Facultad de Ciencias Exactas y Naturales
- Departamento de Química Inorgánica
- Analítica y Química Física, Pabellón 2
- Ciudad Universitaria
| | - Paola S. Oviedo
- Universidad de Buenos Aires
- Facultad de Ciencias Exactas y Naturales
- Departamento de Química Inorgánica
- Analítica y Química Física, Pabellón 2
- Ciudad Universitaria
| | - Ivana Ramírez-Wierzbicki
- Universidad de Buenos Aires
- Facultad de Ciencias Exactas y Naturales
- Departamento de Química Inorgánica
- Analítica y Química Física, Pabellón 2
- Ciudad Universitaria
| | - Luis M. Baraldo
- Universidad de Buenos Aires
- Facultad de Ciencias Exactas y Naturales
- Departamento de Química Inorgánica
- Analítica y Química Física, Pabellón 2
- Ciudad Universitaria
| | - Alejandro Cadranel
- Universidad de Buenos Aires
- Facultad de Ciencias Exactas y Naturales
- Departamento de Química Inorgánica
- Analítica y Química Física, Pabellón 2
- Ciudad Universitaria
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12
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Herrer IL, Ismael AK, Milán DC, Vezzoli A, Martín S, González-Orive A, Grace I, Lambert C, Serrano JL, Nichols RJ, Cea P. Unconventional Single-Molecule Conductance Behavior for a New Heterocyclic Anchoring Group: Pyrazolyl. J Phys Chem Lett 2018; 9:5364-5372. [PMID: 30160491 DOI: 10.1021/acs.jpclett.8b02051] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Electrical conductance across a molecular junction is strongly determined by the anchoring group of the molecule. Here we highlight the unusual behavior of 1,4-bis(1H-pyrazol-4-ylethynyl)benzene that exhibits unconventional junction current versus junction-stretching distance curves, which are peak-shaped and feature two conducting states of 2.3 × 10-4 G0 and 3.4 × 10-4 G0. A combination of theory and experiments is used to understand the conductance of single-molecule junctions featuring this new anchoring group, i.e., pyrazolyl. These results demonstrate that the pyrazolyl moiety changes its protonation state and contact binding during junction evolution and that it also binds in either end-on or facial geometries with gold contacts. The pyrazolyl moiety holds general interest as a contacting group, because this linkage leads to a strong double anchoring of the molecule to the gold electrode, resulting in enhanced conductance values.
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Affiliation(s)
- I Lucia Herrer
- Departamento de Química Física, Facultad de Ciencias , Universidad de Zaragoza , 50009 Zaragoza , Spain
- Instituto de Nanociencia de Aragón (INA) and Laboratorio de Microscopias Avanzadas (LMA), edificio i+d Campus Río Ebro , Universidad de Zaragoza , C/Mariano Esquillor, s/n , 50018 Zaragoza , Spain
| | - Ali K Ismael
- Department of Physics , University of Lancaster , Lancaster LA1 4YB , United Kingdom
- Department of Physics, College of Education for Pure Science , Tikrit University , Tikrit , Iraq
| | - David C Milán
- Department of Chemistry , University of Liverpool , Crown Street , Liverpool L69 7ZD , United Kingdom
| | - Andrea Vezzoli
- Department of Chemistry , University of Liverpool , Crown Street , Liverpool L69 7ZD , United Kingdom
| | - Santiago Martín
- Departamento de Química Física, Facultad de Ciencias , Universidad de Zaragoza , 50009 Zaragoza , Spain
- Instituto de Ciencias de Materiales de Aragón (ICMA) , Universidad de Zaragoza-CSIC , 50009 Zaragoza , Spain
| | - Alejandro González-Orive
- Technical and Macromolecular Chemistry , University of Paderborn , Warburger Straße 100 , 33098 Paderborn , Germany
| | - Iain Grace
- Department of Physics , University of Lancaster , Lancaster LA1 4YB , United Kingdom
| | - Colin Lambert
- Department of Physics , University of Lancaster , Lancaster LA1 4YB , United Kingdom
| | - José L Serrano
- Departamento de Química Física, Facultad de Ciencias , Universidad de Zaragoza , 50009 Zaragoza , Spain
- Instituto de Nanociencia de Aragón (INA) and Laboratorio de Microscopias Avanzadas (LMA), edificio i+d Campus Río Ebro , Universidad de Zaragoza , C/Mariano Esquillor, s/n , 50018 Zaragoza , Spain
| | - Richard J Nichols
- Department of Chemistry , University of Liverpool , Crown Street , Liverpool L69 7ZD , United Kingdom
| | - Pilar Cea
- Departamento de Química Física, Facultad de Ciencias , Universidad de Zaragoza , 50009 Zaragoza , Spain
- Instituto de Nanociencia de Aragón (INA) and Laboratorio de Microscopias Avanzadas (LMA), edificio i+d Campus Río Ebro , Universidad de Zaragoza , C/Mariano Esquillor, s/n , 50018 Zaragoza , Spain
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13
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Thiophene Syntheses by Ring Forming Multicomponent Reactions. Top Curr Chem (Cham) 2018; 376:38. [PMID: 30221315 DOI: 10.1007/s41061-018-0216-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 09/05/2018] [Indexed: 10/28/2022]
Abstract
Thiophenes occur as important building blocks in natural products, pharmaceutical active compounds, and in materials for electronic and opto-electronic devices. Therefore, there is a considerable demand for efficient synthetic strategies for producing these compounds. This review focuses on ring-forming multicomponent reactions for synthesizing thiophenes and their derivatives.
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14
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Nagaoka M, Tsurumaki E, Nishiuchi M, Iwanaga T, Toyota S. Synthesis and Electronic Properties of Length-Defined 9,10-Anthrylene-Butadiynylene Oligomers. J Org Chem 2018; 83:5784-5790. [PMID: 29667411 DOI: 10.1021/acs.joc.8b00311] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Linear π-conjugated oligomers consisting of anthracene and diacetylene units were readily synthesized by a one-pot process that involved desilylation and oxidative coupling from appropriate building units. We were able to isolate length-defined oligomers ranging from 2-mer to 6-mer as stable and soluble solids. The bathochromic shifts in the UV-vis spectra suggested that the π-conjugation was extended with elongation of the linear chain. Cyclic voltammetric measurements showed characteristic reversible oxidation waves that were dependent on the number of anthracene units.
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Affiliation(s)
- Maiko Nagaoka
- Department of Chemistry, School of Science , Tokyo Institute of Technology , 2-12-1 Ookayama , Meguro-ku, Tokyo 152-8551 , Japan
| | - Eiji Tsurumaki
- Department of Chemistry, School of Science , Tokyo Institute of Technology , 2-12-1 Ookayama , Meguro-ku, Tokyo 152-8551 , Japan
| | - Mai Nishiuchi
- Department of Chemistry, Faculty of Science , Okayama University of Science , 1-1 Ridaicho , Kita-ku, Okayama 700-0005 , Japan
| | - Tetsuo Iwanaga
- Department of Chemistry, Faculty of Science , Okayama University of Science , 1-1 Ridaicho , Kita-ku, Okayama 700-0005 , Japan
| | - Shinji Toyota
- Department of Chemistry, School of Science , Tokyo Institute of Technology , 2-12-1 Ookayama , Meguro-ku, Tokyo 152-8551 , Japan
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15
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Pawal S, Lolage S, Chavan S. Coordination-organometallic hybrid materials based on the trinuclear M(II)-Ru(II) (M=Ni and Zn) complexes: Synthesis, structural characterization, luminescence and electrochemical properties. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.10.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Cheon G, Duerloo KAN, Sendek AD, Porter C, Chen Y, Reed EJ. Data Mining for New Two- and One-Dimensional Weakly Bonded Solids and Lattice-Commensurate Heterostructures. NANO LETTERS 2017; 17:1915-1923. [PMID: 28191965 DOI: 10.1021/acs.nanolett.6b05229] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Layered materials held together by weak interactions including van der Waals forces, such as graphite, have attracted interest for both technological applications and fundamental physics in their layered form and as an isolated single-layer. Only a few dozen single-layer van der Waals solids have been subject to considerable research focus, although there are likely to be many more that could have superior properties. To identify a broad spectrum of layered materials, we present a novel data mining algorithm that determines the dimensionality of weakly bonded subcomponents based on the atomic positions of bulk, three-dimensional crystal structures. By applying this algorithm to the Materials Project database of over 50,000 inorganic crystals, we identify 1173 two-dimensional layered materials and 487 materials that consist of weakly bonded one-dimensional molecular chains. This is an order of magnitude increase in the number of identified materials with most materials not known as two- or one-dimensional materials. Moreover, we discover 98 weakly bonded heterostructures of two-dimensional and one-dimensional subcomponents that are found within bulk materials, opening new possibilities for much-studied assembly of van der Waals heterostructures. Chemical families of materials, band gaps, and point groups for the materials identified in this work are presented. Point group and piezoelectricity in layered materials are also evaluated in single-layer forms. Three hundred and twenty-five of these materials are expected to have piezoelectric monolayers with a variety of forms of the piezoelectric tensor. This work significantly extends the scope of potential low-dimensional weakly bonded solids to be investigated.
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Affiliation(s)
- Gowoon Cheon
- Department of Applied Physics, ‡Department of Materials Science and Engineering, and §Department of Mechanical Engineering, Stanford University , Stanford, California 94305, United States
| | - Karel-Alexander N Duerloo
- Department of Applied Physics, ‡Department of Materials Science and Engineering, and §Department of Mechanical Engineering, Stanford University , Stanford, California 94305, United States
| | - Austin D Sendek
- Department of Applied Physics, ‡Department of Materials Science and Engineering, and §Department of Mechanical Engineering, Stanford University , Stanford, California 94305, United States
| | - Chase Porter
- Department of Applied Physics, ‡Department of Materials Science and Engineering, and §Department of Mechanical Engineering, Stanford University , Stanford, California 94305, United States
| | - Yuan Chen
- Department of Applied Physics, ‡Department of Materials Science and Engineering, and §Department of Mechanical Engineering, Stanford University , Stanford, California 94305, United States
| | - Evan J Reed
- Department of Applied Physics, ‡Department of Materials Science and Engineering, and §Department of Mechanical Engineering, Stanford University , Stanford, California 94305, United States
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17
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Toyota S, Nishiuchi M, Iwata T, Yamauchi T, Iwanaga T, Hasegawa M. Synthesis, structures, and properties of 2,5-dianthrylthiophene derivatives. CAN J CHEM 2017. [DOI: 10.1139/cjc-2016-0391] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The title thiophene derivatives bearing two 9-, 1-, or 2-anthryl groups were synthesized by cyclization of the corresponding 1,3-diynes with sodium sulfide or by Suzuki–Miyaura coupling. X-ray analysis and DFT calculations revealed that the molecules adopt nonplanar conformations depending on the steric demand of the anthryl groups. The dihedral angles between the arene units are an important contributor to the photophysical properties in the electronic spectra as well as the electrochemical data.
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Affiliation(s)
- Shinji Toyota
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Mai Nishiuchi
- Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama 700-0005, Japan
| | - Taisei Iwata
- Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama 700-0005, Japan
| | - Tomokazu Yamauchi
- Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama 700-0005, Japan
| | - Tetsuo Iwanaga
- Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama 700-0005, Japan
| | - Masashi Hasegawa
- Department of Chemistry, School of Science, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara 252-0373, Japan
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18
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Planar Anthracene-Acetylene Frameworks as a Stereogenic Motif. Chempluschem 2017; 82:957-966. [DOI: 10.1002/cplu.201600646] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2016] [Revised: 02/06/2017] [Indexed: 01/09/2023]
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19
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Grotkopp O, Müller TJJ. Synthesis of bi- and terthiophenes initiated by microwave-assisted coupling-isomerization reaction. Chem Heterocycl Compd (N Y) 2017. [DOI: 10.1007/s10593-017-2022-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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20
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Schneeweis A, Neidlinger A, Reiss GJ, Frank W, Heinze K, Müller TJJ. Radical cation and dication of a 4H-dithieno[2,3-b:3′,2′-e][1,4]-thiazine. Org Chem Front 2017. [DOI: 10.1039/c7qo00188f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
4H-Dithieno[2,3-b:3’,2’-e][1,4]-thiazine (DTT), and its radical cation and dication were synthesized, characterized (EPR spectroscopy and spectroelectrochemistry) and interpreted (DFT and TD DFT calculations).
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Affiliation(s)
- Arno Schneeweis
- Institut für Organische Chemie und Makromolekulare Chemie
- Heinrich-Heine-Universität Düsseldorf
- D-40225 Düsseldorf
- Germany
| | - Andreas Neidlinger
- Institut für Anorganische Chemie und Analytische Chemie
- Johannes Gutenberg-Universität Mainz
- D-55128 Mainz
- Germany
| | - Guido J. Reiss
- Institut für Anorganische Chemie und Strukturchemie
- Heinrich-Heine-Universität Düsseldorf
- D-40225 Düsseldorf
- Germany
| | - Walter Frank
- Institut für Anorganische Chemie und Strukturchemie
- Heinrich-Heine-Universität Düsseldorf
- D-40225 Düsseldorf
- Germany
| | - Katja Heinze
- Institut für Anorganische Chemie und Analytische Chemie
- Johannes Gutenberg-Universität Mainz
- D-55128 Mainz
- Germany
| | - Thomas J. J. Müller
- Institut für Organische Chemie und Makromolekulare Chemie
- Heinrich-Heine-Universität Düsseldorf
- D-40225 Düsseldorf
- Germany
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21
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Vela S, Bauroth S, Atienza C, Molina-Ontoria A, Guldi DM, Martín N. Determining the Attenuation Factor in Molecular Wires Featuring Covalent and Noncovalent Tectons. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201608973] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Sonia Vela
- Departamento de Química Orgánica I; Facultad de Químicas; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Stefan Bauroth
- Department of Chemistry and Pharmacy and; Interdisciplinary Center for Molecular Materials; University of Erlangen-Nuremberg; Erlandstrasse 3 91058 Erlangen Germany
| | - Carmen Atienza
- Departamento de Química Orgánica I; Facultad de Químicas; Universidad Complutense de Madrid; 28040 Madrid Spain
| | | | - Dirk M. Guldi
- Department of Chemistry and Pharmacy and; Interdisciplinary Center for Molecular Materials; University of Erlangen-Nuremberg; Erlandstrasse 3 91058 Erlangen Germany
| | - Nazario Martín
- Departamento de Química Orgánica I; Facultad de Químicas; Universidad Complutense de Madrid; 28040 Madrid Spain
- IMDEA-Nanociencia; C/ Faraday 9, Campus UAM 28049 Madrid Spain
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22
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Vela S, Bauroth S, Atienza C, Molina-Ontoria A, Guldi DM, Martín N. Determining the Attenuation Factor in Molecular Wires Featuring Covalent and Noncovalent Tectons. Angew Chem Int Ed Engl 2016; 55:15076-15080. [DOI: 10.1002/anie.201608973] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Indexed: 01/25/2023]
Affiliation(s)
- Sonia Vela
- Departamento de Química Orgánica I; Facultad de Químicas; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Stefan Bauroth
- Department of Chemistry and Pharmacy and; Interdisciplinary Center for Molecular Materials; University of Erlangen-Nuremberg; Erlandstrasse 3 91058 Erlangen Germany
| | - Carmen Atienza
- Departamento de Química Orgánica I; Facultad de Químicas; Universidad Complutense de Madrid; 28040 Madrid Spain
| | | | - Dirk M. Guldi
- Department of Chemistry and Pharmacy and; Interdisciplinary Center for Molecular Materials; University of Erlangen-Nuremberg; Erlandstrasse 3 91058 Erlangen Germany
| | - Nazario Martín
- Departamento de Química Orgánica I; Facultad de Químicas; Universidad Complutense de Madrid; 28040 Madrid Spain
- IMDEA-Nanociencia; C/ Faraday 9, Campus UAM 28049 Madrid Spain
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23
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Urselmann D, Deilhof K, Mayer B, Müller TJJ. Thiophene-forming one-pot synthesis of three thienyl-bridged oligophenothiazines and their electronic properties. Beilstein J Org Chem 2016; 12:2055-2064. [PMID: 27829911 PMCID: PMC5082470 DOI: 10.3762/bjoc.12.194] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 08/11/2016] [Indexed: 12/23/2022] Open
Abstract
The pseudo five-component Sonogashira-Glaser cyclization synthesis of symmetrically 2,5-diaryl-substituted thiophenes is excellently suited to access thienyl-bridged oligophenothiazines in a one-pot fashion. Three thienyl-bridged systems were intensively studied by UV-vis and fluorescence spectroscopy as well as by cyclic voltammetry. The oxidation proceeds with lower oxidation potentials and consistently reversible oxidations can be identified. The Stokes shifts are large and substantial fluorescence quantum yields can be measured. Computational chemistry indicates lowest energy conformers with sigmoidal and helical structure, similar to oligophenothiazines. TD-DFT and even semiempirical ZINDO calculations reproduce the trends of longest wavelengths absorption bands and allow the assignment of these transitions to possess largely charge-transfer character from the adjacent phenothiazinyl moieties to the central thienyl unit.
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Affiliation(s)
- Dominik Urselmann
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, D-40225 Düsseldorf, Germany
| | - Konstantin Deilhof
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, D-40225 Düsseldorf, Germany
| | - Bernhard Mayer
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, D-40225 Düsseldorf, Germany
| | - Thomas J J Müller
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, D-40225 Düsseldorf, Germany
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24
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Talipov MR, Abdelwahed SH, Thakur K, Reid SA, Rathore R. From Wires to Cables: Attempted Synthesis of 1,3,5-Trifluorenylcyclohexane as a Platform for Molecular Cables. J Org Chem 2016; 81:1627-34. [PMID: 26783949 DOI: 10.1021/acs.joc.5b02792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Multiple molecular wires braided together in a single assembly, termed as molecular cable, are promising next-generation materials for effective long-range charge transport. As an example of the platform for constructing molecular cables, 1,3,5-trifluorenylcyclohexane (TFC) and its difluorenyl analogues (DFCs) were systematically investigated both experimentally (X-ray crystallography) and theoretically (DFT calculations). Although the syntheses of DFCs were successfully achieved, the synthesis of TFC, which involved a similar intramolecular Friedel-Crafts cyclization as the last step, was unsuccessful. An exhaustive study of the conformational landscape of cyclohexane ring of TFC and DFCs revealed that TFC is a moderately strained molecule (∼17 kcal/mol), and computational studies of the reaction profile show that this steric strain, present in the transition state, is responsible for the unusually high (∼5 years) reaction half-life. A successful synthesis of TFC will require that the steric strain is introduced in multiple steps, and such alternative strategies are being currently explored.
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Affiliation(s)
- Marat R Talipov
- Department of Chemistry, Marquette University , P.O. Box 1881, Milwaukee, Wisconsin 53201-1881, United States
| | - Sameh H Abdelwahed
- Department of Chemistry, Marquette University , P.O. Box 1881, Milwaukee, Wisconsin 53201-1881, United States
| | - Khushabu Thakur
- Department of Chemistry, Marquette University , P.O. Box 1881, Milwaukee, Wisconsin 53201-1881, United States
| | - Scott A Reid
- Department of Chemistry, Marquette University , P.O. Box 1881, Milwaukee, Wisconsin 53201-1881, United States
| | - Rajendra Rathore
- Department of Chemistry, Marquette University , P.O. Box 1881, Milwaukee, Wisconsin 53201-1881, United States
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25
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Ma J, Krauße N, Butenschön H. 1,1′-Dialkynylferrocenes as Substrates for Bidirectional Alkyne Metathesis Reaction. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500483] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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26
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Chen J, Wenger OS. Fluoride binding to an organoboron wire controls photoinduced electron transfer. Chem Sci 2015; 6:3582-3592. [PMID: 29511520 PMCID: PMC5659175 DOI: 10.1039/c5sc00964b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 04/20/2015] [Indexed: 12/28/2022] Open
Abstract
We demonstrate that the rates for long-range electron transfer can be controlled actively by tight anion binding to a rigid rod-like molecular bridge. Electron transfer from a triarylamine donor to a photoexcited Ru(bpy)32+ acceptor (bpy = 2,2'-bipyridine) across a 2,5-diboryl-1,4-phenylene bridge occurs within less than 10 ns in CH2Cl2 at 22 °C. Fluoride anions bind with high affinity to the organoboron bridge due to strong Lewis base/Lewis acid interactions, and this alters the electronic structure of the bridge drastically. Consequently, a large tunneling barrier is imposed on photoinduced electron transfer from the triarylamine to the Ru(bpy)32+ complex and hence this process occurs more than two orders of magnitude more slowly, despite the fact that its driving force is essentially unaffected by fluoride addition. Electron transfer rates in proteins could potentially be regulated via a similar fundamental principle, because interactions between charged amino acid side chains and counter-ions can modulate electronic couplings between distant redox partners. In artificial donor-bridge-acceptor compounds, external stimuli have been employed frequently to control electron transfer rates, but the approach of exploiting strong Lewis acid/Lewis base interactions to regulate the tunneling barrier height imposed by a rigid rod-like molecular bridge is conceptually novel and broadly applicable, because it is largely independent of the donor and the acceptor, and because the effect is not based on a change of the driving-force for electron transfer. The principle demonstrated here can potentially be used to switch between conducting and insulating states of molecular wires between electrodes.
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Affiliation(s)
- Jing Chen
- Department of Chemistry , University of Basel , St. Johanns-Ring 19 , CH-4056 Basel , Switzerland .
- Xiamen Institute of Rare Earth Materials , Chinese Academy of Sciences , Xiamen 361021 , People's Republic of China
- Key Laboratory of Design and Assembly of Functional Nanostructures , Fujian Provincial Key Laboratory of Nanomaterials , Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , People's Republic of China
| | - Oliver S Wenger
- Department of Chemistry , University of Basel , St. Johanns-Ring 19 , CH-4056 Basel , Switzerland .
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27
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Tait CE, Neuhaus P, Anderson HL, Timmel CR. Triplet state delocalization in a conjugated porphyrin dimer probed by transient electron paramagnetic resonance techniques. J Am Chem Soc 2015; 137:6670-9. [PMID: 25914154 PMCID: PMC4569061 DOI: 10.1021/jacs.5b03249] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
The
delocalization of the photoexcited triplet state in a linear
butadiyne-linked porphyrin dimer is investigated by time-resolved
and pulse electron paramagnetic resonance (EPR) with laser excitation.
The transient EPR spectra of the photoexcited triplet states of the
porphyrin monomer and dimer are characterized by significantly different
spin polarizations and an increase of the zero-field splitting parameter D from monomer to dimer. The proton and nitrogen hyperfine
couplings, determined using electron nuclear double resonance (ENDOR)
and X- and Q-band HYSCORE, are reduced to about half in the porphyrin
dimer. These data unequivocally prove the delocalization of the triplet
state over both porphyrin units, in contrast to the conclusions from
previous studies on the triplet states of closely related porphyrin
dimers. The results presented here demonstrate that the most accurate
estimate of the extent of triplet state delocalization can be obtained
from the hyperfine couplings, while interpretation of the zero-field
splitting parameter D can lead to underestimation
of the delocalization length, unless combined with quantum chemical
calculations. Furthermore, orientation-selective ENDOR and HYSCORE
results, in combination with the results of density functional theory
(DFT) calculations, allowed determination of the orientations of the
zero-field splitting tensors with respect to the molecular frame in
both porphyrin monomer and dimer. The results provide evidence for
a reorientation of the zero-field splitting tensor and a change in
the sign of the zero-field splitting D value. The
direction of maximum dipolar coupling shifts from the out-of-plane
direction in the porphyrin monomer to the vector connecting the two
porphyrin units in the dimer. This reorientation, leading to an alignment
of the principal optical transition moment and the axis of maximum
dipolar coupling, is also confirmed by magnetophotoselection experiments.
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Affiliation(s)
- Claudia E Tait
- †Department of Chemistry, Centre for Advanced Electron Spin Resonance, University of Oxford, South Parks Road, Oxford OX1 3QR, United Kingdom
| | - Patrik Neuhaus
- ‡Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Harry L Anderson
- ‡Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Christiane R Timmel
- †Department of Chemistry, Centre for Advanced Electron Spin Resonance, University of Oxford, South Parks Road, Oxford OX1 3QR, United Kingdom
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28
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Krauße N, Kielmann M, Ma J, Butenschön H. Reactions of Alkynyl- and 1,1′-Dialkynylferrocenes with Tetracyanoethylene - Unanticipated Addition at theLessElectron-Rich of Two Triple Bonds. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500105] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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29
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Linton KE, Fox MA, Pålsson LO, Bryce MR. Oligo(p-phenyleneethynylene) (OPE) Molecular Wires: Synthesis and Length Dependence of Photoinduced Charge Transfer in OPEs with Triarylamine and Diaryloxadiazole End Groups. Chemistry 2015; 21:3997-4007. [DOI: 10.1002/chem.201406080] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Indexed: 11/10/2022]
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30
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Toyota S, Karashima S, Iwanaga T. Synthesis and Properties of Extended π-Conjugated Compounds with 9,10-Bis(phenylethynyl)anthracene Units. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2015. [DOI: 10.1246/bcsj.20140279] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Shinji Toyota
- Department of Chemistry, Faculty of Science, Okayama University of Science
| | - Sayaka Karashima
- Department of Chemistry, Faculty of Science, Okayama University of Science
| | - Tetsuo Iwanaga
- Department of Chemistry, Faculty of Science, Okayama University of Science
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31
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Garg K, Majumder C, Gupta SK, Aswal DK, Nayak SK, Chattopadhyay S. Stable negative differential resistance in porphyrin based σ–π–σ monolayers grafted on silicon. RSC Adv 2015. [DOI: 10.1039/c5ra09484d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Two Si–porphyrin hybrid monolayers showed room temperature negative differential resistance (NDR) property. The monolayer with a fluorophenyl porphyrin moiety showed a better peak-to-valley ratio due to compact packing.
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Affiliation(s)
- Kavita Garg
- Bio-Organic Division
- Bhabha Atomic Research Centre
- Mumbai
- India
| | | | - Shiv Kumar Gupta
- Technical Physics Division
- Bhabha Atomic Research Centre
- Mumbai
- India
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32
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Dostert C, Müller TJJ. A one-pot dilithiation–lithium–zinc exchange–Negishi coupling approach to 2,6-di(hetero)aryl substituted dithienothiazines – a novel class of electronically fine-tunable redox systems. Org Chem Front 2015. [DOI: 10.1039/c5qo00046g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
2,6-Di(hetero)aryl substituted dithienothiazines with fine-tunable electronic properties are efficiently accessible by lithiation–lithium–zinc exchange–Negishi cross-coupling in a one-pot fashion.
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Affiliation(s)
- Catherine Dostert
- Institut für Organische Chemie und Makromolekulare Chemie
- Heinrich-Heine-Universität Düsseldorf
- 40225 Düsseldorf
- Germany
| | - Thomas J. J. Müller
- Institut für Organische Chemie und Makromolekulare Chemie
- Heinrich-Heine-Universität Düsseldorf
- 40225 Düsseldorf
- Germany
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33
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Morales RGE, Hernández C. Expected Radial Column Density of Methylcyanopolyynes in CW Leonis (IRC+10216). ACTA ACUST UNITED AC 2015. [DOI: 10.4236/ijaa.2015.53018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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34
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Wang YH, Li DF, Hong ZW, Liang JH, Han D, Zheng JF, Niu ZJ, Mao BW, Zhou XS. Conductance of alkyl-based molecules with one, two and three chains measured by electrochemical STM break junction. Electrochem commun 2014. [DOI: 10.1016/j.elecom.2014.05.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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35
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Molina-Ontoria A, Rivera-Nazario DM, Tigreros A, Ortiz A, Nuñez JE, Insuasty B, Lueders D, Wolfrum S, Guldi DM, Echegoyen L. Geometric Influence on Intramolecular Photoinduced Electron Transfer in Platinum(II) Acetylide-Linked Donor-Acceptor Assemblies. Chemistry 2014; 20:11111-9. [DOI: 10.1002/chem.201402616] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Indexed: 11/06/2022]
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36
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Peureux C, Jouikov V. Covalent grafting of silatranes to carbon interfaces. Chemistry 2014; 20:9290-4. [PMID: 24996063 DOI: 10.1002/chem.201403091] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Indexed: 11/07/2022]
Abstract
Covalent Si-C grafting of a silatrane cage to a carbon-based interface provides a truly conjugated benzyl-type system in which the 3 c-4 e orbital of the silatrane interacts with the macroscopic π-type substituent (graphite Csp2 network) through hyperconjugation. This process, studied by voltammetry, EIS, FTIR, SEM and DFT modeling, allows one to build carbon-based conducting interfaces with electronically conjugated molecular extensions. Non-conjugated covalent grafting of an alkyl silatrane moiety provides chemically stable functional interfaces that have good promise for electrochemically-driven applications, for example, electrochemical spin-writing.
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Affiliation(s)
- Charles Peureux
- UMR 6226 ISCR, Chimie et Photonique Moléculaires, Université de Rennes 1, 35042 Rennes (France)
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37
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Constantinidis P, Lang M, Herterich J, Fischer I, Auerswald J, Krueger A. Electronic Spectroscopy of 1-(Phenylethynyl)naphthalene. J Phys Chem A 2014; 118:2915-21. [DOI: 10.1021/jp412482p] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Philipp Constantinidis
- Institute
of Physical and Theoretical Chemistry, University of Würzburg, Am
Hubland, D-97074 Würzburg, Germany
| | - Melanie Lang
- Institute
of Physical and Theoretical Chemistry, University of Würzburg, Am
Hubland, D-97074 Würzburg, Germany
| | - Jörg Herterich
- Institute
of Physical and Theoretical Chemistry, University of Würzburg, Am
Hubland, D-97074 Würzburg, Germany
| | - Ingo Fischer
- Institute
of Physical and Theoretical Chemistry, University of Würzburg, Am
Hubland, D-97074 Würzburg, Germany
| | - Johannes Auerswald
- Institute
of Organic Chemistry, University of Würzburg, Am Hubland, D-97074 Würzburg, Germany
| | - Anke Krueger
- Institute
of Organic Chemistry, University of Würzburg, Am Hubland, D-97074 Würzburg, Germany
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38
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Zhang H, Hu Q, Li L, Hu Y, Zhou P, Zhang X, Xie H, Yin F, Hu Y, Wang S. Convenient one-step construction of yne-functionalized aryl halides through domino cyclization from tetraynes. Chem Commun (Camb) 2014; 50:3335-7. [PMID: 24535017 DOI: 10.1039/c3cc47707j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
An efficient method for the construction of fused yne-substituted aryl halides by reaction of unactivated linear tetraynes with allyl halides via domino C-C coupling and formation of C-X bonds in the presence of Pd(OAc)2/PPh3 was developed.
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Affiliation(s)
- Hao Zhang
- Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecular-Based Materials, School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China.
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39
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Wang YH, Zhou XY, Sun YY, Han D, Zheng JF, Niu ZJ, Zhou XS. Conductance measurement of carboxylic acids binding to palladium nanoclusters by electrochemical jump-to-contact STM break junction. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.01.041] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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40
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O’Hanlon DC, Cohen BW, Moravec DB, Dallinger RF, Hopkins MD. Electronic, Redox, and Photophysical Consequences of Metal-for-Carbon Substitution in Oligo-Phenylene-Ethynylenes. J Am Chem Soc 2014; 136:3127-36. [DOI: 10.1021/ja411354d] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Daniel C. O’Hanlon
- Department
of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Brian W. Cohen
- Department
of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Davis B. Moravec
- Department
of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Richard F. Dallinger
- Department
of Chemistry, Wabash College, Crawfordsville, Indiana 47933, United States
| | - Michael D. Hopkins
- Department
of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
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41
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Sun YY, Peng ZL, Hou R, Liang JH, Zheng JF, Zhou XY, Zhou XS, Jin S, Niu ZJ, Mao BW. Enhancing electron transport in molecular wires by insertion of a ferrocene center. Phys Chem Chem Phys 2014; 16:2260-7. [DOI: 10.1039/c3cp53269k] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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42
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Kirk ML, Shultz DA, Stasiw DE, Lewis GF, Wang G, Brannen CL, Sommer RD, Boyle PD. Superexchange Contributions to Distance Dependence of Electron Transfer/Transport: Exchange and Electronic Coupling in Oligo(para-Phenylene)- and Oligo(2,5-Thiophene)-Bridged Donor–Bridge–Acceptor Biradical Complexes. J Am Chem Soc 2013; 135:17144-54. [DOI: 10.1021/ja4081887] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Martin L. Kirk
- Department
of Chemistry and Chemical Biology, The University of New Mexico, MSC03
2060, 1 University of New Mexico, Albuquerque, New Mexico 87131-0001, United States
| | - David A. Shultz
- Department
of Chemistry, North Carolina State University, 2200 Hillsborough, Raleigh, North Carolina 27695-8204, United States
| | - Daniel E. Stasiw
- Department
of Chemistry, North Carolina State University, 2200 Hillsborough, Raleigh, North Carolina 27695-8204, United States
| | - Geoffrey F. Lewis
- Department
of Chemistry, North Carolina State University, 2200 Hillsborough, Raleigh, North Carolina 27695-8204, United States
| | - Guangbin Wang
- Department
of Chemistry, North Carolina State University, 2200 Hillsborough, Raleigh, North Carolina 27695-8204, United States
| | - Candice L. Brannen
- Department
of Chemistry, North Carolina State University, 2200 Hillsborough, Raleigh, North Carolina 27695-8204, United States
| | - Roger D. Sommer
- Department
of Chemistry, North Carolina State University, 2200 Hillsborough, Raleigh, North Carolina 27695-8204, United States
| | - Paul D. Boyle
- Department
of Chemistry, North Carolina State University, 2200 Hillsborough, Raleigh, North Carolina 27695-8204, United States
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43
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Ohmura T, Kijima A, Komori Y, Suginome M. Cycloaddition-based formal C-H alkynylation of isoindoles leading to the synthesis of air-stable fluorescent 1,3-dialkynylisoindoles. Org Lett 2013; 15:3510-3. [PMID: 23829477 DOI: 10.1021/ol401051d] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Reaction of N-alkylisoindoles with (bromoethynyl)triisopropylsilane afforded 1,3-bis(triisopropylsilylethynyl) isoindoles in high yields. The formal C-H alkynylation proceeds under transition-metal-free conditions through [4 + 2] cycloaddition of the pyrrole ring of isoindole with bromoalkyne followed by ring-opening of the product.
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Affiliation(s)
- Toshimichi Ohmura
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Kyoto 615-8510, Japan.
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44
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Wielopolski M, Molina-Ontoria A, Schubert C, Margraf JT, Krokos E, Kirschner J, Gouloumis A, Clark T, Guldi DM, Martín N. Blending Through-Space and Through-Bond π–π-Coupling in [2,2′]-Paracyclophane-oligophenylenevinylene Molecular Wires. J Am Chem Soc 2013; 135:10372-81. [DOI: 10.1021/ja401239r] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Mateusz Wielopolski
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen, Germany
| | - Agustín Molina-Ontoria
- Departamento de Química
Orgánica, Facultad de Química, Universidad Complutense, E-28040 Madrid, Spain
| | - Christina Schubert
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen, Germany
| | - Johannes T. Margraf
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen, Germany
| | - Evangelos Krokos
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen, Germany
| | - Johannes Kirschner
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen, Germany
| | - Andreas Gouloumis
- Departamento de Química
Orgánica, Facultad de Química, Universidad Complutense, E-28040 Madrid, Spain
| | - Timothy Clark
- Computer-Chemie-Centrum, Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Nägelsbachstr. 25, 91052 Erlangen, Germany
| | - Dirk M. Guldi
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen, Germany
| | - Nazario Martín
- Departamento de Química
Orgánica, Facultad de Química, Universidad Complutense, E-28040 Madrid, Spain
- IMDEA-Nanociencia, Campus de Cantoblanco,
E-28049 Madrid, Spain
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45
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Pereţeanu IS, Müller TJJ. Synthesis and electronic properties of 3,7-dianilino substituted N-hexyl phenothiazines. Org Biomol Chem 2013; 11:5127-35. [PMID: 23812160 DOI: 10.1039/c3ob40815a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
3,7-Diaminophenothiazine derivatives are readily synthesized via two-fold Buchwald-Hartwig coupling of 10-hexyl 3,7-dibromo-10H-phenothiazine with a series of primary and secondary anilines and amines. All derivatives possess two reversible oxidations at low potentials with remarkable semiquinone formation constants. The electronic structure of this novel class of phenothiazinyl-oligoanilines is additionally studied and rationalized by DFT computations and correlation studies between selected experimental and computational electronic data.
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Affiliation(s)
- Iani S Pereţeanu
- Lehrstuhl für Organische Chemie, Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, D-40225, Düsseldorf, Germany
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46
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Ballesteros LM, Martín S, Cortés J, Marqués-González S, Higgins SJ, Nichols RJ, Low PJ, Cea P. Controlling the Structural and Electrical Properties of Diacid Oligo(Phenylene Ethynylene) Langmuir-Blodgett Films. Chemistry 2013; 19:5352-63. [DOI: 10.1002/chem.201203261] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Revised: 12/23/2012] [Indexed: 11/10/2022]
Affiliation(s)
- Luz Marina Ballesteros
- Departamento de Química Física, Facultad de Ciencias, Universidad de Zaragoza, Zaragoza 50009, Spain
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47
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Jothi M, Kumaradhas P. Electrical characteristics of Au substituted 2,6-Bis-phenylethynyl-dithieno[3,2-b;2′,3′-d]thiophene (BPDTT) molecule against external electric fields: A quantum chemical and charge density study. COMPUT THEOR CHEM 2012. [DOI: 10.1016/j.comptc.2012.09.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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48
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Barbieri A, Ventura B, Ziessel R. Photoinduced energy-transfer dynamics in multichromophoric arrays containing transition metal complexes and organic modules. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.02.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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49
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Reuter LG, Bonn AG, Stückl AC, He B, Pati PB, Zade SS, Wenger OS. Charge Delocalization in a Homologous Series of α,α′-Bis(dianisylamino)-Substituted Thiophene Monocations. J Phys Chem A 2012; 116:7345-52. [DOI: 10.1021/jp303989t] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Luisa G. Reuter
- Institut für
Anorganische
Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, D-37077 Göttingen, Germany
| | - Annabell G. Bonn
- Institut für
Anorganische
Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, D-37077 Göttingen, Germany
| | - A. Claudia Stückl
- Institut für
Anorganische
Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, D-37077 Göttingen, Germany
| | - Bice He
- Institut für
Anorganische
Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, D-37077 Göttingen, Germany
| | - Palas Baran Pati
- Department of Chemical Sciences, Indian Institute of Science Education and Research,
Kolkata, P.O. BCKV Campus Main Office, Mohanpur 741252, Nadia, West
Bengal, India
| | - Sanjio S. Zade
- Department of Chemical Sciences, Indian Institute of Science Education and Research,
Kolkata, P.O. BCKV Campus Main Office, Mohanpur 741252, Nadia, West
Bengal, India
| | - Oliver S. Wenger
- Institut für
Anorganische
Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, D-37077 Göttingen, Germany
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50
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Dostert C, Wanstrath C, Frank W, Müller TJJ. 4H-dithieno[2,3-b:3',2'-e][1,4]thiazines--synthesis and electronic properties of a novel class of electron rich redox systems. Chem Commun (Camb) 2012; 48:7271-3. [PMID: 22699424 DOI: 10.1039/c2cc32731g] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Quantum chemical screening reveals that 4H-dithieno[2,3-b:3',2'-e][1,4]thiazines possess the highest HOMO among four constitutional isomers, even 0.27 eV higher in energy than the well established 10H-phenothiazine. N-Substituted 4H-dithieno[2,3-b:3',2'-e][1,4]thiazines are readily accessible by twofold Pd-catalyzed amination. According to cyclic voltammetry dithienothiazines are reversibly oxidized and can be considered as new donors for functional π-systems.
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Affiliation(s)
- Catherine Dostert
- Lehrstuhl für Organische Chemie, Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, D-40225, Düsseldorf, Germany
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