1
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Rey‐Tarrío F, Guisán‐Ceinos S, Cuerva JM, Miguel D, Ribagorda M, Quiñoá E, Freire F. Photostability and Dynamic Helical Behavior in Chiral Poly(phenylacetylene)s with a Preferred Screw‐Sense. Angew Chem Int Ed Engl 2022; 61:e202207623. [PMID: 35731840 PMCID: PMC9543806 DOI: 10.1002/anie.202207623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Indexed: 11/18/2022]
Abstract
Helical polymers such as poly(phenylacetylene)s (PPAs) are interesting materials due to the possibility of tuning their helical scaffold (sense and elongation) once they have been prepared and by the presence of external stimuli. The main limitation in the application of PPAs is their poor photostability. These polymers degrade under visible light exposure through a photochemical electrocyclization process. In this work, it was demonstrated, through a selected example, how the photochemical degradation in PPAs is directly related to their dynamic helical behavior. Thus, while PPAs with dynamic helical structures show poor photostability under UV/Vis light exposure, poly‐(R)‐1, bearing an enantiopure sulfoxide group as pendant group and designed to have a quasi‐static helical behavior, shows a large photostability due to the restricted conformational composition at the polyene backbone, needed to orient the conjugated double bonds prior to the photochemical electrocyclization process and the subsequent degradation of the material.
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Affiliation(s)
- Francisco Rey‐Tarrío
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Santiago Guisán‐Ceinos
- Departamento de Química Orgánica Facultad de Ciencias Universidad Autónoma de Madrid 28049 Madrid Spain
| | - Juan M. Cuerva
- Departamento de Química Orgánica. Facultad de Ciencias Universidad de Granada (UGR) Unidad de Excelencia de Química Aplicada a la Biomedicina y Medioambiente (UEQ) 18071 Granada Spain
| | - Delia Miguel
- Departamento de Fisicoquímica. Facultad de Farmacia Universidad de Granada (UGR, UEQ) 18071 Granada Spain
| | - Maria Ribagorda
- Departamento de Química Orgánica Facultad de Ciencias Universidad Autónoma de Madrid 28049 Madrid Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem) Universidad Autónoma de Madrid 28049 Madrid Spain
| | - Emilio Quiñoá
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Félix Freire
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
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2
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Rey-Tarrío F, Guisán-Ceinos S, Cuerva JM, Miguel D, Ribagorda M, Quiñoá E, Freire F. Photostability and Dynamic Helical Behavior in Chiral Poly(phenylacetylene)s with a Preferred Screw‐Sense. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Francisco Rey-Tarrío
- Universidade de Santiago de Compostela - Campus de Santiago: Universidade de Santiago de Compostela CiQUS SPAIN
| | - Santiago Guisán-Ceinos
- Universidad Autonoma de Madrid - Campus de Cantoblanco: Universidad Autonoma de Madrid Química Orgánica SPAIN
| | | | - Delia Miguel
- University of Granada: Universidad de Granada Physical Chemistry Department SPAIN
| | - Maria Ribagorda
- Universidad Autonoma de Madrid - Campus de Cantoblanco: Universidad Autonoma de Madrid Química Orgánica SPAIN
| | - Emilio Quiñoá
- Universidade de Santiago de Compostela - Campus de Santiago: Universidade de Santiago de Compostela CiQUS SPAIN
| | - Felix Freire
- Universidade de Santiago de Compostela Jenaro de la Fuente street s/n 15782 Santiago de Compostela SPAIN
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3
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Guisán-Ceinos S, R Rivero A, Romeo-Gella F, Simón-Fuente S, Gómez-Pastor S, Calvo N, Orrego AH, Guisán JM, Corral I, Sanz-Rodriguez F, Ribagorda M. Turn-on Fluorescent Biosensors for Imaging Hypoxia-like Conditions in Living Cells. J Am Chem Soc 2022; 144:8185-8193. [PMID: 35486830 PMCID: PMC9100661 DOI: 10.1021/jacs.2c01197] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
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We present the synthesis,
photophysical properties, and biological
application of nontoxic 3-azo-conjugated BODIPY dyes as masked fluorescent
biosensors of hypoxia-like conditions. The synthetic methodology is
based on an operationally simple N=N bond-forming protocol,
followed by a Suzuki coupling, that allows for a direct access to
simple and underexplored 3-azo-substituted BODIPY. These dyes can
turn on their emission properties under both chemical and biological
reductive conditions, including bacterial and human azoreductases,
which trigger the azo bond cleavage, leading to fluorescent 3-amino-BODIPY.
We have also developed a practical enzymatic protocol, using an immobilized
bacterial azoreductase that allows for the evaluation of these azo-based
probes and can be used as a model for the less accessible and expensive
human reductase NQO1. Quantum mechanical calculations uncover the
restructuration of the topography of the S1 potential energy
surface following the reduction of the azo moiety and rationalize
the fluorescent quenching event through the mapping of an unprecedented
pathway. Fluorescent microscopy experiments show that these azos can
be used to visualize hypoxia-like conditions within living cells.
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Affiliation(s)
- Santiago Guisán-Ceinos
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Alexandra R Rivero
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Fernando Romeo-Gella
- Departamento de Química, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Silvia Simón-Fuente
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Silvia Gómez-Pastor
- Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Natalia Calvo
- Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Alejandro H Orrego
- Departamento de Biocatálisis, Instituto de Catálisis y Petroquímica (CSIC), Campus UAM, 28049 Madrid, Spain
| | - José Manuel Guisán
- Departamento de Biocatálisis, Instituto de Catálisis y Petroquímica (CSIC), Campus UAM, 28049 Madrid, Spain
| | - Inés Corral
- Departamento de Química, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain.,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Francisco Sanz-Rodriguez
- Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Maria Ribagorda
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain.,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
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4
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5
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Reiné P, Ortuño AM, Resa S, Álvarez de Cienfuegos L, Ribagorda M, Mota AJ, Abbate S, Longhi G, Miguel D, Cuerva JM. Enantiopure Double
ortho
‐Oligophenylethynylene‐Based Helical Structures with Circularly Polarized Luminescence Activity. CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202100160] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Pablo Reiné
- Department of Organic Chemistry Unidad de Excelencia de Química University of Granada Faculty of Science, C. U. Fuentenueva 18071 Granada Spain
| | - Ana M. Ortuño
- Department of Organic Chemistry Unidad de Excelencia de Química University of Granada Faculty of Science, C. U. Fuentenueva 18071 Granada Spain
| | - Sandra Resa
- Department of Organic Chemistry Unidad de Excelencia de Química University of Granada Faculty of Science, C. U. Fuentenueva 18071 Granada Spain
| | - Luis Álvarez de Cienfuegos
- Department of Organic Chemistry Unidad de Excelencia de Química University of Granada Faculty of Science, C. U. Fuentenueva 18071 Granada Spain
| | - María Ribagorda
- Organic Chemistry Department Department of Organic Chemistry Universidad Autonoma de Madrid C/Francisco Tomás y Valiente n° 7 Cantoblanco 28049 Madrid Spain
| | - Antonio J. Mota
- Department of Inorganic Chemistry Unidad de Excelencia de Química University of Granada Faculty of Science, C. U. Fuentenueva 18071 Granada Spain
| | - Sergio Abbate
- Department of Molecular and Translational Medicine Instituto Nazionale di Ottica – CNR Brescia Research Unit Università di Brescia Via Branze 45 25123 Brescia Italy
| | - Giovanna Longhi
- Department of Molecular and Translational Medicine Instituto Nazionale di Ottica – CNR Brescia Research Unit Università di Brescia Via Branze 45 25123 Brescia Italy
| | - Delia Miguel
- Physical Chemistry Department Unidad de Excelencia de Química University of Granada Faculty of Pharmacy, C. U. Cartuja 18071 Granada Spain
| | - Juan M. Cuerva
- Department of Organic Chemistry Unidad de Excelencia de Química University of Granada Faculty of Science, C. U. Fuentenueva 18071 Granada Spain
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6
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Li N, Wang R, Wang C, Gao J, Liu Z, Gu J, Jiao T. Self-assembled photo-responsive black phosphorus-azobenzene composite Langmuir films with chemical gas sensor and photoelectric conversion applications. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126811] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Zhao X, Zheng W, Zhang Y, Huang W. cis alkenes stabilized by intramolecular sulphurπ interactions. Chem Commun (Camb) 2020; 56:814-817. [PMID: 31848539 DOI: 10.1039/c9cc08558k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of alkenes with bistable isomers were obtained containing a thiophene/azoheteroaryl backbone. Visible light and heat-induced reversible cis ⇌ trans isomerizations were evidenced by UV-Vis and 1H NMR spectra. The stabilization of cis alkenes was attributed to intramolecular sulphurπ (Sπ) interactions, which were further supported by theoretical calculations.
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Affiliation(s)
- Xiaolei Zhao
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China.
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8
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Resa S, Reiné P, Álvarez de Cienfuegos L, Guisán-Ceinos S, Ribagorda M, Longhi G, Mazzeo G, Abbate S, Mota AJ, Miguel D, Cuerva JM. Optically active Ag(i): o-OPE helicates using a single homochiral sulfoxide as chiral inducer. Org Biomol Chem 2019; 17:8425-8434. [PMID: 31469142 DOI: 10.1039/c9ob01573f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work we describe the ability of a simple enantiopure sulfoxide group to promote folding of oligo ortho-phenylene ethynylenes (o-OPEs) with one helical sense. A family of foldamers with up to seven triple bonds was synthesized and fully characterized. Moreover, changes in structure and chiroptical properties caused by Ag(i) coordination have been studied by NMR, UV, VCD and ECD measurements. Quantum mechanical DFT calculations support experimental results.
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Affiliation(s)
- Sandra Resa
- Department of Organic Chemistry, Unidad de Excelencia de Química (UEQ), University of Granada, C.U. Fuentenueva, Granada, Spain.
| | - Pablo Reiné
- Department of Organic Chemistry, Unidad de Excelencia de Química (UEQ), University of Granada, C.U. Fuentenueva, Granada, Spain.
| | - Luis Álvarez de Cienfuegos
- Department of Organic Chemistry, Unidad de Excelencia de Química (UEQ), University of Granada, C.U. Fuentenueva, Granada, Spain.
| | - Santiago Guisán-Ceinos
- Department of Organic Chemistry, C.U. Cantoblanco, Universidad Autónoma de Madrid, Spain
| | - María Ribagorda
- Department of Organic Chemistry, C.U. Cantoblanco, Universidad Autónoma de Madrid, Spain
| | - Giovanna Longhi
- Dipartimento di Medicina Molecolare e Traslazionale, Universitá di Brescia, Viale Europa 11, Brescia, Italy
| | - Giuseppe Mazzeo
- Dipartimento di Medicina Molecolare e Traslazionale, Universitá di Brescia, Viale Europa 11, Brescia, Italy
| | - Sergio Abbate
- Dipartimento di Medicina Molecolare e Traslazionale, Universitá di Brescia, Viale Europa 11, Brescia, Italy
| | - Antonio J Mota
- Department of Inorganic Chemistry, UEQ, University of Granada, C.U. Fuentenueva, Granada, Spain
| | - Delia Miguel
- Department of Physical Chemistry, UEQ, University of Granada, C.U. Cartuja, Granada, Spain.
| | - Juan M Cuerva
- Department of Organic Chemistry, Unidad de Excelencia de Química (UEQ), University of Granada, C.U. Fuentenueva, Granada, Spain.
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9
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Ansari M, Bera R, Mondal S, Das N. Triptycene-Derived Photoresponsive Fluorescent Azo-Polymer as Chemosensor for Picric Acid Detection. ACS OMEGA 2019; 4:9383-9392. [PMID: 31460028 PMCID: PMC6648835 DOI: 10.1021/acsomega.9b00497] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 05/16/2019] [Indexed: 05/08/2023]
Abstract
Two new triptycene-based azobenzene-functionalized polymers (TBAFPs) have been synthesized using the well-known Pd-catalyzed Sonogashira cross-coupling polycondensation reaction between 2,6-diethynyltriptycene and (meta or para) dibromo-azobenzenes. Enhancement of the fluorescent emission intensity was observed upon trans → cis isomerization of -N=N- linkage in TBAFPs. The cis-lifetime of TBAFP1 is rather long (greater than 2 days). The resulting materials were tested as a potential chemosensor for the detection of picric acid (PA)-a water pollutant as well as chemical constituent of explosives used in warfare. PA was found to interact strongly with TBAFPs, which led to significant quenching of the latter's fluorescence emission intensities. The binding constants are in the order of 105 M-1. TBAFPs were also able to detect PA in nanomolar concentrations.
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Affiliation(s)
- Mosim Ansari
- Department of Chemistry, Indian
Institute of Technology Patna, 801106 Bihar, India
| | - Ranajit Bera
- Department of Chemistry, Indian
Institute of Technology Patna, 801106 Bihar, India
| | - Snehasish Mondal
- Department of Chemistry, Indian
Institute of Technology Patna, 801106 Bihar, India
| | - Neeladri Das
- Department of Chemistry, Indian
Institute of Technology Patna, 801106 Bihar, India
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10
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Resa S, Miguel D, Guisán-Ceinos S, Mazzeo G, Choquesillo-Lazarte D, Abbate S, Crovetto L, Cárdenas DJ, Carreño MC, Ribagorda M, Longhi G, Mota AJ, Álvarez de Cienfuegos L, Cuerva JM. Sulfoxide-Induced Homochiral Folding of ortho
-Phenylene Ethynylenes (o
-OPEs) by Silver(I) Templating: Structure and Chiroptical Properties. Chemistry 2018; 24:2653-2662. [DOI: 10.1002/chem.201704897] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Indexed: 12/29/2022]
Affiliation(s)
- Sandra Resa
- Department of Organic Chemistry; University of Granada, UGR; C. U. Fuentenueva 18071 Granada Spain
| | - Delia Miguel
- Department of Physical Chemistry; University of Granada, UGR, Cartuja Campus; 18071 Granada Spain
| | - Santiago Guisán-Ceinos
- Department of Organic Chemistry; Universidad Autónoma de Madrid, Cantoblanco; 28049 Madrid Spain
| | - Giuseppe Mazzeo
- Dipartimento di Medicina e Traslazionale; Università di Brescia; Viale Europa 11 25123 Brescia Italy
| | - Duane Choquesillo-Lazarte
- Laboratorio de Estudios Cristalográficos; Instituto Andaluz de Ciencias de la Tierra, CSIC-UGR; Armilla, Granada Spain
| | - Sergio Abbate
- Dipartimento di Medicina e Traslazionale; Università di Brescia; Viale Europa 11 25123 Brescia Italy
| | - Luis Crovetto
- Department of Physical Chemistry; University of Granada, UGR, Cartuja Campus; 18071 Granada Spain
| | - Diego J. Cárdenas
- Department of Organic Chemistry; Universidad Autónoma de Madrid, Cantoblanco; 28049 Madrid Spain
| | - M. Carmen Carreño
- Department of Organic Chemistry; Universidad Autónoma de Madrid, Cantoblanco; 28049 Madrid Spain
| | - María Ribagorda
- Department of Organic Chemistry; Universidad Autónoma de Madrid, Cantoblanco; 28049 Madrid Spain
| | - Giovanna Longhi
- Dipartimento di Medicina e Traslazionale; Università di Brescia; Viale Europa 11 25123 Brescia Italy
| | - Antonio J. Mota
- Department of Inorganic Chemistry; University of Granada, UGR; C. U. Fuentenueva 18071 Granada Spain
| | | | - Juan M. Cuerva
- Department of Organic Chemistry; University of Granada, UGR; C. U. Fuentenueva 18071 Granada Spain
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11
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Li W, Li Y, Yin X, Liang Y, Li J, Wang C, Lan Y, Wang H, Ju Y, Li G. Azobenzene-bridged bile acid dimers: an interesting class of conjugates with conformation-controlled bioactivity. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.04.107] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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12
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Deo C, Bogliotti N, Métivier R, Retailleau P, Xie J. A Visible-Light-Triggered Conformational Diastereomer Photoswitch in a Bridged Azobenzene. Chemistry 2016; 22:9092-6. [DOI: 10.1002/chem.201601400] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Claire Deo
- PPSM, ENS Cachan, CNRS; Université Paris-Saclay; 94235 Cachan France
| | - Nicolas Bogliotti
- PPSM, ENS Cachan, CNRS; Université Paris-Saclay; 94235 Cachan France
| | - Rémi Métivier
- PPSM, ENS Cachan, CNRS; Université Paris-Saclay; 94235 Cachan France
| | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301; Univ. Paris-Sud, Université Paris-Saclay; Gif-Sur-Yvette 91198 France
| | - Juan Xie
- PPSM, ENS Cachan, CNRS; Université Paris-Saclay; 94235 Cachan France
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13
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14
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Shigeno M, Kushida Y, Yamaguchi M. Energy Aspects of Thermal Molecular Switching: Molecular Thermal Hysteresis of Helicene Oligomers. Chemphyschem 2015; 16:2076-83. [PMID: 25990788 DOI: 10.1002/cphc.201500210] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 04/13/2015] [Indexed: 12/18/2022]
Abstract
Molecular switching is a phenomenon by which a molecule reversibly changes its structure and state in response to external stimuli or energy. Herein, molecular switching is discussed from thermodynamic and kinetic aspects in terms of energy supply with an emphasis on the thermal switching exhibited by helicene oligomers. It includes the inversion of relative thermodynamic stability induced by temperature changes and molecular thermal hysteresis in a closed system. The thermal phenomenon associated with the oligomers involves population/concentration changes between metastable states under nonequilibrium thermodynamic control.
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Affiliation(s)
- Masanori Shigeno
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Sendai 980-8578 (Japan), Fax: (+81) 22-795-6811
| | - Yo Kushida
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Sendai 980-8578 (Japan), Fax: (+81) 22-795-6811
| | - Masahiko Yamaguchi
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Sendai 980-8578 (Japan), Fax: (+81) 22-795-6811.
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15
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Anger E, Fletcher SP. Simple Azo Dyes Provide Access to Versatile Chiroptical Switches. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500485] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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16
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17
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Núñez I, Merino E, Lecea M, Pieraccini S, Spada GP, Rosini C, Mazzeo G, Ribagorda M, Carreño MC. Control of the helical chirality of enantiopure sulfinyl (Z)-azobenzene-based photoswitches. Chemistry 2013; 19:3397-406. [PMID: 23355378 DOI: 10.1002/chem.201203243] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Indexed: 11/08/2022]
Abstract
A new class of enantiopure ortho,ortho-disubstituted azobenzene photoswitches has been synthesized from (S)-2-(p-tolylsulfinyl)benzoquinone and arylhydrazines. The sulfoxide acts as a unidirectional controller of the helical chirality that arises in the Z isomer after photoisomerization. Highly congested E-azobenzenes 5 c showed two atropisomeric diastereoconformers in the solid state that converged upon irradiation into a unique Z isomer with defined helicity (M), as evident in the X-ray structure. The chiroptical properties of this three-state enantiopure switch can be externally tuned both photochemically and/or thermally. Theoretical CD spectra calculated by using time-dependent DFT methods support the existence of two atropoisomeric E isomers and only one Z isomer with (M) helicity. Complementary to the classical azobenzene-based switches, the photoswiching event is promoted under green/blue light and do not occur under UV irradiation.
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Affiliation(s)
- Irene Núñez
- Departamento de Química Orgánica (Módulo-01), Universidad Autónoma de Madrid, Cantoblanco, 28049-Madrid, Spain
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18
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Merino E, Ribagorda M. Control over molecular motion using the cis-trans photoisomerization of the azo group. Beilstein J Org Chem 2012; 8:1071-90. [PMID: 23019434 PMCID: PMC3458724 DOI: 10.3762/bjoc.8.119] [Citation(s) in RCA: 296] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Accepted: 06/21/2012] [Indexed: 12/16/2022] Open
Abstract
Control over molecular motion represents an important objective in modern chemistry. Aromatic azobenzenes are excellent candidates as molecular switches since they can exist in two forms, namely the cis (Z) and trans (E) isomers, which can interconvert both photochemically and thermally. This transformation induces a molecular movement and a significant geometric change, therefore the azobenzene unit is an excellent candidate to build dynamic molecular devices. We describe selected examples of systems containing an azobenzene moiety and their motions and geometrical changes caused by external stimuli.
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Affiliation(s)
- Estíbaliz Merino
- Instituto de Química Orgánica General, Centro Superior de Investigaciones Científicas (CSIC), C/ Juan de la Cierva, 3, 28006, Madrid, Spain
| | - María Ribagorda
- Departmento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049, Madrid, Spain
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19
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Guo J, Xu G, Guo G. Temperature Induced Interpenetration Suppression of a Couple of Azo-based Isomers with a Flexible Second Ligand. CHINESE J CHEM 2012. [DOI: 10.1002/cjoc.201100442] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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20
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Merino E. Synthesis of azobenzenes: the coloured pieces of molecular materials. Chem Soc Rev 2011; 40:3835-53. [DOI: 10.1039/c0cs00183j] [Citation(s) in RCA: 483] [Impact Index Per Article: 37.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Jin LM, Li Y, Ma J, Li Q. Synthesis of Novel Thermally Reversible Photochromic Axially Chiral Spirooxazines. Org Lett 2010; 12:3552-5. [DOI: 10.1021/ol1014152] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Li-Mei Jin
- Liquid Crystal Institute, Kent State University, Kent, Ohio 44240
| | - Yannian Li
- Liquid Crystal Institute, Kent State University, Kent, Ohio 44240
| | - Ji Ma
- Liquid Crystal Institute, Kent State University, Kent, Ohio 44240
| | - Quan Li
- Liquid Crystal Institute, Kent State University, Kent, Ohio 44240
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Liu W, Cao D, Peng J, Zhang H, Meier H. A Dendrimer Chiroptical Switch Based on the Reversible Intramolecular Photoreaction of Anthracene and Benzene Rings. Chem Asian J 2010; 5:1896-901. [PMID: 20583040 DOI: 10.1002/asia.201000159] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Wenjie Liu
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
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Qiu F, Zhang W, Yang D, Zhao M, Cao G, Li P. Synthesis, characterization, and thermo-optical properties of azobenzene polyurethane containing chiral units. J Appl Polym Sci 2010. [DOI: 10.1002/app.30948] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Lupo F, Gentile S, Ballistreri FP, Tomaselli GA, Fragalà ME, Gulino A. Viable route for switching of an engineered silica surface using Cu2+ ions at sub-ppm levels. Analyst 2010; 135:2273-9. [DOI: 10.1039/c0an00364f] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Carmen Carreño M, Hernández-Torres G, Ribagorda M, Urbano A. Enantiopure sulfoxides: recent applications in asymmetric synthesis. Chem Commun (Camb) 2009:6129-44. [DOI: 10.1039/b908043k] [Citation(s) in RCA: 223] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Gulino A, Lupo F, Condorelli GG, Fragalà ME, Amato ME, Scarlata G. Reversible photoswitching of stimuli-responsive Si(100) surfaces engineered with an assembled 1-cyano-1-phenyl-2-[4′-(10-undecenyloxy)phenyl]-ethylene monolayer. ACTA ACUST UNITED AC 2008. [DOI: 10.1039/b809037h] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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