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Wickhorst PJ, Ihmels H. Selective, pH-Dependent Colorimetric and Fluorimetric Detection of Quadruplex DNA with 4-Dimethylamino(phenyl)-Substituted Berberine Derivatives. Chemistry 2021; 27:8580-8589. [PMID: 33855748 PMCID: PMC8252107 DOI: 10.1002/chem.202100297] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Indexed: 12/20/2022]
Abstract
The 9- and 12-dimethylaminophenyl-substituted berberine derivatives 3 a and 3 b were readily synthesized by Suzuki-Miyaura reactions and shown to be useful fluorescent probes for the optical detection of quadruplex DNA (G4-DNA). Their association with the nucleic acids was investigated by spectrometric titrations, CD and LD spectroscopy, and with DNA-melting analysis. Both ligands bind to duplex DNA by intercalation and to G4-DNA by terminal π stacking. At neutral conditions, they bind with higher affinity (Kb =105 -106 M-1 ) to representative quadruplex forming oligonucleotides 22AG, c-myc, c-kit, and a2, than to duplex calf thymus (ct) DNA (Kb =5-7×104 M-1 ). At pH 5, however, the affinity of 3 a towards G4-DNA 22AG is higher (Kb =1.2×106 M-1 ), whereas the binding constant towards ct DNA is lower (Kb =3.9×103 M-1 ) than under neutral conditions. Notably, the association of the ligand with DNA results in characteristic changes of the absorption and emission properties under specific conditions, which may be used for optical DNA detection. Other than the parent berberine, the ligands do not show a noticeable increase of their very low intrinsic emission intensity upon association with DNA at neutral conditions. In contrast, a fluorescence light-up effect was observed upon association to duplex (Φfl =0.01) and quadruplex DNA (Φfl =0.04) at pH 5. This fluorimetric response to G4-DNA association in combination with the distinct, red-shifted absorption under these conditions provides a simple and conclusive optical detection of G4-DNA at lower pH.
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Affiliation(s)
- Peter Jonas Wickhorst
- Department of Chemistry – BiologyUniversity of Siegen, andCenter of Micro- and Nanochemistry and Engineering (Cμ)Adolf-Reichwein-Str. 257068SiegenGermany
| | - Heiko Ihmels
- Department of Chemistry – BiologyUniversity of Siegen, andCenter of Micro- and Nanochemistry and Engineering (Cμ)Adolf-Reichwein-Str. 257068SiegenGermany
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2
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Nováková Lachmanová Š, Kolivoška V, Šebera J, Gasior J, Mészáros G, Dupeyre G, Lainé PP, Hromadová M. Environmental Control of Single-Molecule Junction Evolution and Conductance: A Case Study of Expanded Pyridinium Wiring. Angew Chem Int Ed Engl 2021; 60:4732-4739. [PMID: 33205862 PMCID: PMC7986070 DOI: 10.1002/anie.202013882] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/13/2020] [Indexed: 02/03/2023]
Abstract
Environmental control of single-molecule junction evolution and conductance was demonstrated for expanded pyridinium molecules by scanning tunneling microscopy break junction method and interpreted by quantum transport calculations including solvent molecules explicitly. Fully extended and highly conducting molecular junctions prevail in water environment as opposed to short and less conducting junctions formed in non-solvating mesitylene. A theoretical approach correctly models single-molecule conductance values considering the experimental junction length. Most pronounced difference in the molecular junction formation and conductance was identified for a molecule with the highest stabilization energy on the gold substrate confirming the importance of molecule-electrode interactions. Presented concept of tuning conductance through molecule-electrode interactions in the solvent-driven junctions can be used in the development of new molecular electronic devices.
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Affiliation(s)
- Štěpánka Nováková Lachmanová
- Department of Electrochemistry at NanoscaleJ. Heyrovský Institute of Physical Chemistry of the Czech Academy of SciencesDolejškova 3182 23Prague 8Czech Republic
| | - Viliam Kolivoška
- Department of Electrochemistry at NanoscaleJ. Heyrovský Institute of Physical Chemistry of the Czech Academy of SciencesDolejškova 3182 23Prague 8Czech Republic
| | - Jakub Šebera
- Department of Electrochemistry at NanoscaleJ. Heyrovský Institute of Physical Chemistry of the Czech Academy of SciencesDolejškova 3182 23Prague 8Czech Republic
| | - Jindřich Gasior
- Department of Electrochemistry at NanoscaleJ. Heyrovský Institute of Physical Chemistry of the Czech Academy of SciencesDolejškova 3182 23Prague 8Czech Republic
| | - Gábor Mészáros
- Research Centre for Natural SciencesHungarian Academy of SciencesMagyar tudósok krt. 21117BudapestHungary
| | | | | | - Magdaléna Hromadová
- Department of Electrochemistry at NanoscaleJ. Heyrovský Institute of Physical Chemistry of the Czech Academy of SciencesDolejškova 3182 23Prague 8Czech Republic
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3
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Nováková Lachmanová Š, Kolivoška V, Šebera J, Gasior J, Mészáros G, Dupeyre G, Lainé PP, Hromadová M. Environmental Control of Single‐Molecule Junction Evolution and Conductance: A Case Study of Expanded Pyridinium Wiring. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202013882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Štěpánka Nováková Lachmanová
- Department of Electrochemistry at Nanoscale J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences Dolejškova 3 182 23 Prague 8 Czech Republic
| | - Viliam Kolivoška
- Department of Electrochemistry at Nanoscale J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences Dolejškova 3 182 23 Prague 8 Czech Republic
| | - Jakub Šebera
- Department of Electrochemistry at Nanoscale J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences Dolejškova 3 182 23 Prague 8 Czech Republic
| | - Jindřich Gasior
- Department of Electrochemistry at Nanoscale J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences Dolejškova 3 182 23 Prague 8 Czech Republic
| | - Gábor Mészáros
- Research Centre for Natural Sciences Hungarian Academy of Sciences Magyar tudósok krt. 2 1117 Budapest Hungary
| | | | | | - Magdaléna Hromadová
- Department of Electrochemistry at Nanoscale J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences Dolejškova 3 182 23 Prague 8 Czech Republic
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An Overview of Current Knowledge on the Properties, Synthesis and Applications of Quaternary Chitosan Derivatives. Polymers (Basel) 2020; 12:polym12122878. [PMID: 33266285 PMCID: PMC7759937 DOI: 10.3390/polym12122878] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 11/25/2020] [Accepted: 11/26/2020] [Indexed: 12/18/2022] Open
Abstract
Chitosan, a chitin-derivative polysaccharide, known for its non-toxicity, biocompatibility and biodegradability, presents limited applications due to its low solubility in neutral or basic pH medium. Quaternization stands out as an alternative to modify this natural polymer, aiming to improve its solubility over a wide pH range and, consequently, expand its range of applications. Quaternization occurs by introducing a quaternary ammonium moiety onto or outside the chitosan backbone, via chemical reactions with primary amino and hydroxyl groups, under vast experimental conditions. The oldest and most common forms of quaternized chitosan involve N,N,N-trimethyl chitosan (TMC) and N-[(2-hydroxy-3-trimethyl ammonium) propyl] chitosan (HTCC) and, more recently, quaternized chitosan by insertion of pyridinium or phosphonium salts. By modifying chitosan through the insertion of a quaternary moiety, permanent cationic charges on the polysaccharide backbone are achieved and properties such as water solubility, antimicrobial activity, mucoadhesiveness and permeability are significantly improved, enabling the application mainly in the biomedical and pharmaceutical areas. In this review, the main quaternized chitosan compounds are addressed in terms of their structure, properties, synthesis routes and applications. In addition, other less explored compounds are also presented, involving the main findings and future prospects regarding the field of quaternized chitosans.
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Trovato E, Di Pietro ML, Giannetto A, Dupeyre G, Lainé PP, Nastasi F, Puntoriero F, Campagna S. Designing expanded bipyridinium as redox and optical probes for DNA. Photochem Photobiol Sci 2020; 19:105-113. [PMID: 31930262 DOI: 10.1039/c9pp00418a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report on the light-switch behaviour of two head-to-tail expanded bipyridinium species as a function of their interaction with calf thymus DNA and polynucleotides. In particular, both DNA and polynucleotides containing exclusively adenine or guanine moieties quench the luminescence of the fused expanded bipyridinium species. This behaviour has been rationalized demonstrating that a reductive photoinduced electron transfer process takes place involving both adenine or guanine moieties. The charge separated state so produced recombines in the tens of picoseconds. These results could help in designing new organic substrates for application in DNA probing technology and lab on chip-based sensing systems.
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Affiliation(s)
- Emanuela Trovato
- Chromaleont S.r.l., Università degli Studi di Messina, Polo Annunziata, Viale Annunziata, Messina, 98168, Italy
| | - Maria Letizia Di Pietro
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali - ChiBioFarAm - Università di Messina, Viale F. Stagno d'Alcontres 31, Messina, 98166, Italy
| | - Antonino Giannetto
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali - ChiBioFarAm - Università di Messina, Viale F. Stagno d'Alcontres 31, Messina, 98166, Italy
| | - Gregory Dupeyre
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J-A de Baïf, Paris, F-75013, France
| | - Philippe P Lainé
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J-A de Baïf, Paris, F-75013, France
| | - Francesco Nastasi
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali - ChiBioFarAm - Università di Messina, Viale F. Stagno d'Alcontres 31, Messina, 98166, Italy
| | - Fausto Puntoriero
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali - ChiBioFarAm - Università di Messina, Viale F. Stagno d'Alcontres 31, Messina, 98166, Italy.
| | - Sebastiano Campagna
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali - ChiBioFarAm - Università di Messina, Viale F. Stagno d'Alcontres 31, Messina, 98166, Italy
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6
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Gutiérrez-Ceron C, Oñate R, Zagal JH, Pizarro A, Silva JF, Castro-Castillo C, Rezende MC, Flores M, Cortés-Arriagada D, Toro-Labbé A, Campos LM, Venkataraman L, Ponce I. Molecular conductance versus inductive effects of axial ligands on the electrocatalytic activity of self-assembled iron phthalocyanines: The oxygen reduction reaction. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.134996] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Puntoriero F, Arrigo A, Santoro A, Ganga GL, Tuyèras F, Campagna S, Dupeyre G, Lainé PP. Photoinduced Intercomponent Processes in Selectively Addressable Bichromophoric Dyads Made of Linearly Arranged Ru(II) Terpyridine and Expanded Pyridinium Components. Inorg Chem 2019; 58:5807-5817. [PMID: 31017774 DOI: 10.1021/acs.inorgchem.9b00139] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Three new linearly arranged bichromophoric systems 1-3 have been prepared, and their photophysical properties have been studied, taking also advantage of femtosecond pump-probe transient absorption spectroscopy. The three compounds contain the same chromophores, that is a Ru(II)-terpy-like species and a fused expanded bipyridinium (FEBP) unit, separated by three different, variously methylated biphenylene-type bridges. The chromophores have been selected to be selectively addressable, and excitation involving the Ru-based or the FEBP-based dyes results in different excited-state decays. Upon Ru-based excitation at 570 nm, oxidative photoinduced electron transfer (OPET) takes place in 1-3 from the 3MLCT state; however, the charge-separated species does not accumulate, indicating that the charge recombination rate constant exceeds the OPET rate constant. Upon excitation of the organic dye at 400 nm, the FEBP-based 1π-π* level is prepared, which undergoes a series of intercomponent decay events, including (i) electron-exchange energy transfer leading to the MLCT manifold (SS-EnT), which successively decays according to 570 nm excitation, and (ii) reductive photoinduced electron transfer (RPET), leading to the preparation of the charge-separated (CS) state. Reductive PET, involving the FEBP-based singlet state, is much faster than oxidative PET, involving the MLCT triplet state, essentially because of driving force reasons. The rate constant of CR is intermediate between the rate constants of OPET and RPET, and this makes 1-3 capable to selectively read the 400 nm excitation as an active input to prepare the CS state, whereas excitation at wavelengths longer than 480 nm is inefficient to accumulate the CS state. Moreover, intriguing differences between the rate constants of the various processes in 1-3 have been analyzed and interpreted according to the superexchange theory for electron transfer. This allowed us to uncover the role of the electron-transfer and hole-transfer superexchange pathways in promoting the various intercomponent photoinduced decay processes occurring in 1-3.
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Affiliation(s)
- Fausto Puntoriero
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences (CHIBIOFARAM) , University of Messina and Centro Interuniversitario per la Conversione Chimica dell'Energia Solare (SOLAR-CHEM, sezione di Messina) - viale F. Stagno d'Alcontres 31 , 98166 Messina , Italy
| | - Antonino Arrigo
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences (CHIBIOFARAM) , University of Messina and Centro Interuniversitario per la Conversione Chimica dell'Energia Solare (SOLAR-CHEM, sezione di Messina) - viale F. Stagno d'Alcontres 31 , 98166 Messina , Italy
| | - Antonio Santoro
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences (CHIBIOFARAM) , University of Messina and Centro Interuniversitario per la Conversione Chimica dell'Energia Solare (SOLAR-CHEM, sezione di Messina) - viale F. Stagno d'Alcontres 31 , 98166 Messina , Italy
| | - Giuseppina La Ganga
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences (CHIBIOFARAM) , University of Messina and Centro Interuniversitario per la Conversione Chimica dell'Energia Solare (SOLAR-CHEM, sezione di Messina) - viale F. Stagno d'Alcontres 31 , 98166 Messina , Italy
| | - Fabien Tuyèras
- Univ Paris Diderot , Sorbonne Paris Cité, ITODYS, UMR CNRS 7086 , 15 rue J-A de Baïf , 75013 Paris , France
| | - Sebastiano Campagna
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences (CHIBIOFARAM) , University of Messina and Centro Interuniversitario per la Conversione Chimica dell'Energia Solare (SOLAR-CHEM, sezione di Messina) - viale F. Stagno d'Alcontres 31 , 98166 Messina , Italy
| | - Grégory Dupeyre
- Univ Paris Diderot , Sorbonne Paris Cité, ITODYS, UMR CNRS 7086 , 15 rue J-A de Baïf , 75013 Paris , France
| | - Philippe P Lainé
- Univ Paris Diderot , Sorbonne Paris Cité, ITODYS, UMR CNRS 7086 , 15 rue J-A de Baïf , 75013 Paris , France
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8
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Investigation of the charge transport in model single molecule junctions based on expanded bipyridinium molecular conductors. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.01.132] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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9
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Pizarro A, Abarca G, Gutiérrez-Cerón C, Cortés-Arriagada D, Bernardi F, Berrios C, Silva JF, Rezende MC, Zagal JH, Oñate R, Ponce I. Building Pyridinium Molecular Wires as Axial Ligands for Tuning the Electrocatalytic Activity of Iron Phthalocyanines for the Oxygen Reduction Reaction. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01479] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Ana Pizarro
- Facultad de Química y Biología, Universidad de Santiago de Chile, Avenida Libertador Bernardo O’Higgins 3363, Casilla 40, Correo 33, Santiago 9170022, Chile
| | - Gabriel Abarca
- Centro de Nanotecnología Aplicada, Facultad de Ciencias, Universidad Mayor, Chile, Camino la Pirámide 5750, Huechuraba 8580745 Santiago, Chile
| | - Cristian Gutiérrez-Cerón
- Facultad de Química y Biología, Universidad de Santiago de Chile, Avenida Libertador Bernardo O’Higgins 3363, Casilla 40, Correo 33, Santiago 9170022, Chile
| | - Diego Cortés-Arriagada
- Programa Institucional de Fomento a la Investigación, Desarrollo e Innovación, Universidad Tecnológica Metropolitana, Ignacio Valdivieso 2409, 8940577 San Joaquín, Santiago, Chile
| | - Fabiano Bernardi
- Institute of Physics, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Alegre 91501-970, RS, Brazil
| | - Cristhian Berrios
- Facultad de Química y Biología, Universidad de Santiago de Chile, Avenida Libertador Bernardo O’Higgins 3363, Casilla 40, Correo 33, Santiago 9170022, Chile
| | - Juan F. Silva
- Facultad de Química y Biología, Universidad de Santiago de Chile, Avenida Libertador Bernardo O’Higgins 3363, Casilla 40, Correo 33, Santiago 9170022, Chile
| | - Marcos C. Rezende
- Facultad de Química y Biología, Universidad de Santiago de Chile, Avenida Libertador Bernardo O’Higgins 3363, Casilla 40, Correo 33, Santiago 9170022, Chile
| | - José H. Zagal
- Facultad de Química y Biología, Universidad de Santiago de Chile, Avenida Libertador Bernardo O’Higgins 3363, Casilla 40, Correo 33, Santiago 9170022, Chile
| | - Rubén Oñate
- Facultad de Química y Biología, Universidad de Santiago de Chile, Avenida Libertador Bernardo O’Higgins 3363, Casilla 40, Correo 33, Santiago 9170022, Chile
| | - Ingrid Ponce
- Facultad de Química y Biología, Universidad de Santiago de Chile, Avenida Libertador Bernardo O’Higgins 3363, Casilla 40, Correo 33, Santiago 9170022, Chile
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10
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Sowmiah S, Esperança JMSS, Rebelo LPN, Afonso CAM. Pyridinium salts: from synthesis to reactivity and applications. Org Chem Front 2018. [DOI: 10.1039/c7qo00836h] [Citation(s) in RCA: 157] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review highlights the pyridinium salts in terms of their natural occurrence, synthesis, reactivity, biological properties, and diverse applications.
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Affiliation(s)
- Subbiah Sowmiah
- Instituto de Tecnologia Química e Biológica António Xavier
- Universidade Nova de Lisboa
- 2780-157 Oeiras
- Portugal
- Research Institute for Medicines (iMed.ULisboa)
| | - José M. S. S. Esperança
- Instituto de Tecnologia Química e Biológica António Xavier
- Universidade Nova de Lisboa
- 2780-157 Oeiras
- Portugal
- LAQV-REQUIMTE
| | - Luís P. N. Rebelo
- Instituto de Tecnologia Química e Biológica António Xavier
- Universidade Nova de Lisboa
- 2780-157 Oeiras
- Portugal
- LAQV-REQUIMTE
| | - Carlos A. M. Afonso
- Research Institute for Medicines (iMed.ULisboa)
- Faculty of Pharmacy
- Universidade de Lisboa
- 1649-009 Lisboa
- Portugal
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11
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Lachmanová Š, Dupeyre G, Tarábek J, Ochsenbein P, Perruchot C, Ciofini I, Hromadová M, Pospíšil L, Lainé PP. Kinetics of Multielectron Transfers and Redox-Induced Structural Changes in N-Aryl-Expanded Pyridiniums: Establishing Their Unusual, Versatile Electrophoric Activity. J Am Chem Soc 2015; 137:11349-64. [DOI: 10.1021/jacs.5b05545] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Štěpánka Lachmanová
- J. Heyrovský
Institute of Physical Chemistry of ASCR, v. v. i., Dolejškova 3, 182 23 Prague, Czech Republic
| | - Grégory Dupeyre
- Université Paris Diderot, Sorbonne Paris Cité,
ITODYS, UMR CNRS 7086, 15 rue J-A de Baïf, 75013 Paris, France
| | - Ján Tarábek
- Institute of Organic
Chemistry and Biochemistry of ASCR, v. v. i., Flemingovo nám. 2, 166 10 Prague, Czech Republic
| | - Philippe Ochsenbein
- Laboratoire
de Cristallographie et Modélisation Moléculaire du Solide, Sanofi LGCR, 371 rue du Professeur Blayac, Montpellier 34184 Cedex 04, France
| | - Christian Perruchot
- Université Paris Diderot, Sorbonne Paris Cité,
ITODYS, UMR CNRS 7086, 15 rue J-A de Baïf, 75013 Paris, France
| | - Ilaria Ciofini
- PSL Research University, Chimie ParisTech—UMR CNRS
8247, Institut de Recherche de Chimie Paris, 11 rue Pierre et Marie Curie, 75005 Paris, France
| | - Magdaléna Hromadová
- J. Heyrovský
Institute of Physical Chemistry of ASCR, v. v. i., Dolejškova 3, 182 23 Prague, Czech Republic
| | - Lubomír Pospíšil
- J. Heyrovský
Institute of Physical Chemistry of ASCR, v. v. i., Dolejškova 3, 182 23 Prague, Czech Republic
- Institute of Organic
Chemistry and Biochemistry of ASCR, v. v. i., Flemingovo nám. 2, 166 10 Prague, Czech Republic
| | - Philippe P. Lainé
- Université Paris Diderot, Sorbonne Paris Cité,
ITODYS, UMR CNRS 7086, 15 rue J-A de Baïf, 75013 Paris, France
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12
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Guanaes LD, Ducatti DR, Duarte MER, Barreira SM, Noseda MD, Gonçalves AG. Synthesis of pyridinium salts from N-substituted dihydropyridines with BF3OEt2 in the absence of added oxidants. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.02.119] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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13
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Affiliation(s)
- Vanderlei G. Machado
- Departamento
de Química, Universidade Federal de Santa Catarina, UFSC, Florianópolis, SC 88040-900, Brazil
| | - Rafaela I. Stock
- Departamento
de Química, Universidade Federal de Santa Catarina, UFSC, Florianópolis, SC 88040-900, Brazil
| | - Christian Reichardt
- Fachbereich
Chemie, Philipps-Universität, Hans-Meerwein-Strasse, 35032 Marburg, Germany
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14
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Fortage J, Dupeyre G, Tuyèras F, Marvaud V, Ochsenbein P, Ciofini I, Hromadová M, Pospísil L, Arrigo A, Trovato E, Puntoriero F, Lainé PP, Campagna S. Molecular Dyads of Ruthenium(II)– or Osmium(II)–Bis(terpyridine) Chromophores and Expanded Pyridinium Acceptors: Equilibration between MLCT and Charge-Separated Excited States. Inorg Chem 2013; 52:11944-55. [DOI: 10.1021/ic401639g] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jérôme Fortage
- Univ Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR
CNRS 7086, 15 rue J-A de Baïf, 75013 Paris, France
- UPMC, Université Paris 06, Institut Parisien
de Chimie Moléculaire, UMR 7201 CNRS, Case 42, 4 place Jussieu, 75005 Paris, France
| | - Grégory Dupeyre
- Univ Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR
CNRS 7086, 15 rue J-A de Baïf, 75013 Paris, France
| | - Fabien Tuyèras
- Univ Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR
CNRS 7086, 15 rue J-A de Baïf, 75013 Paris, France
| | - Valérie Marvaud
- UPMC, Université Paris 06, Institut Parisien
de Chimie Moléculaire, UMR 7201 CNRS, Case 42, 4 place Jussieu, 75005 Paris, France
| | - Philippe Ochsenbein
- Laboratoire
de Cristallographie et Modélisation Moléculaire du Solide, Sanofi LG-CR, 371 rue du Professeur Blayac, 34184 Montpellier CEDEX 04, France
| | - Ilaria Ciofini
- École Nationale Supérieure de Chimie de Paris − Chimie ParisTech, LECIME, UMR 7575 CNRS, 11 rue Pierre
et Marie Curie, 75005 Paris, France
| | - Magdaléna Hromadová
- J. Heyrovský Institute of Physical Chemistry of ASCR, v.v.i., Dolejškova 3, 18223 Prague, Czech Republic
| | - Lubomír Pospísil
- J. Heyrovský Institute of Physical Chemistry of ASCR, v.v.i., Dolejškova 3, 18223 Prague, Czech Republic
| | - Antonino Arrigo
- Dipartimento
di Scienze Chimiche, Università di Messina, and Centro Interuniversitario per la Conversione Chimica dell’Energia Solare (SOLARCHEM), Via
F. Stagno d’Alcontres 31, I-98166 Messina, Italy
| | - Emanuela Trovato
- Dipartimento
di Scienze Chimiche, Università di Messina, and Centro Interuniversitario per la Conversione Chimica dell’Energia Solare (SOLARCHEM), Via
F. Stagno d’Alcontres 31, I-98166 Messina, Italy
| | - Fausto Puntoriero
- Dipartimento
di Scienze Chimiche, Università di Messina, and Centro Interuniversitario per la Conversione Chimica dell’Energia Solare (SOLARCHEM), Via
F. Stagno d’Alcontres 31, I-98166 Messina, Italy
| | - Philippe P. Lainé
- Univ Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR
CNRS 7086, 15 rue J-A de Baïf, 75013 Paris, France
| | - Sebastiano Campagna
- Dipartimento
di Scienze Chimiche, Università di Messina, and Centro Interuniversitario per la Conversione Chimica dell’Energia Solare (SOLARCHEM), Via
F. Stagno d’Alcontres 31, I-98166 Messina, Italy
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