1
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Bodin C, Gelinas B, Deng J, Pithaksinsakul K, Zhu Y, Rochefort D, Fontaine O. Describing the unsuspected advantage of redox ionic liquids applied to electrochemical energy storage. Curr Opin Colloid Interface Sci 2023. [DOI: 10.1016/j.cocis.2023.101677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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2
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Zhang J, Wang W, Zhang Y, Wei Q, Han F, Dong S, Liu D, Zhang S. Small-molecule ionic liquid-based adhesive with strong room-temperature adhesion promoted by electrostatic interaction. Nat Commun 2022; 13:5214. [PMID: 36064871 PMCID: PMC9445047 DOI: 10.1038/s41467-022-32997-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 08/26/2022] [Indexed: 11/09/2022] Open
Abstract
Low-molecular-weight adhesives (LMWAs) possess many unique features compared to polymer adhesives. However, fabricating LMWAs with adhesion strengths higher than those of polymeric materials is a significant challenge, mainly because of the relatively weak and unbalanced cohesion and interfacial adhesion. Herein, an ionic liquid (IL)-based adhesive with high adhesion strength is demonstrated by introducing an IL moiety into a Y-shaped molecule replete with hydrogen bonding (H-bonding) interactions. The IL moieties not only destroyed the rigid and ordered H-bonding networks, releasing more free groups to form hydrogen bonds (H-bonds) at the substrate/adhesive interface, but also provided electrostatic interactions that improved the cohesion energy. The synthesized IL-based adhesive, Tri-HT, could directly form thin coatings on various substrates, with high adhesion strengths of up to 12.20 MPa. Advanced adhesives with electrical conductivity, self-healing behavior, and electrically-controlled adhesion could also be fabricated by combining Tri-HT with carbon nanotubes.
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Affiliation(s)
- Jun Zhang
- College of Materials Science and Engineering, Hunan University, Changsha, 410082, China
| | - Wenxiang Wang
- College of Materials Science and Engineering, Hunan University, Changsha, 410082, China
| | - Yan Zhang
- College of Materials Science and Engineering, Hunan University, Changsha, 410082, China
| | - Qiang Wei
- College of Materials Science and Engineering, Hunan University, Changsha, 410082, China
| | - Fei Han
- College of Materials Science and Engineering, Hunan University, Changsha, 410082, China
| | - Shengyi Dong
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Dongqing Liu
- Science and Technology on Advanced Ceramic Fibers and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, 410073, China
| | - Shiguo Zhang
- College of Materials Science and Engineering, Hunan University, Changsha, 410082, China.
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3
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Zafar A, Evans T, Palgrave RG, ud-Din I. An X-ray photoelectron spectroscopy study of ionic liquids based on a bridged dicationic moiety. JOURNAL OF CHEMICAL RESEARCH 2022. [DOI: 10.1177/17475198221092966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A series of imidazolium and pyridinium-based bridged dicationic ionic liquids have been analysed using X-ray photoelectron spectroscopy. The different electronic environments of the dications have been investigated and a robust fitting model for the carbon C1s region has also been developed. The relative positions of different C1s components and N1s of dications have been determined and their complex C1s photoemission spectra produced from both aromatic and aliphatic carbon states giving photoemission peaks in the binding energy range of 289.0–283.9 eV. A contemporary fitting approach has been applied to a different set of environments which allowing comparison of the binding energies of cationic components of imidazolium and pyridinium-based dicationic ionic liquids. The experimental stoichiometry of all the carbons and nitrogens have also been calculated from XP spectra of the dicationic ionic liquids.
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Affiliation(s)
- Anham Zafar
- Chemistry Department, University College London, London, UK
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Tim Evans
- Chemistry Department, University College London, London, UK
| | | | - Imtiaz- ud-Din
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
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4
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Fabrication and characterization of pore-selective silver-functionalized honeycomb-patterned porous film and its application for antibacterial activity. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124646] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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5
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Synthesis of ferrocene/chitosan-AgNPs films and application in plasmonic color-switching and antimicrobial materials. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.105061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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6
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Yokota Y, Kim Y. Molecular Scale Assessments of Electrochemical Interfaces: In Situ and Ex Situ Approaches. CHEM LETT 2021. [DOI: 10.1246/cl.200735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yasuyuki Yokota
- Surface and Interface Science Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- JST PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Yousoo Kim
- Surface and Interface Science Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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7
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Probing consequences of anion-dictated electrochemistry on the electrode/monolayer/electrolyte interfacial properties. Nat Commun 2020; 11:4194. [PMID: 32826881 PMCID: PMC7442636 DOI: 10.1038/s41467-020-18030-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 07/28/2020] [Indexed: 01/01/2023] Open
Abstract
Altering electrochemical interfaces by using electrolyte effects or so-called "electrolyte engineering" provides a versatile means to modulate the electrochemical response. However, the long-standing challenge is going "beyond cyclic voltammetry" where electrolyte effects are interrogated from the standpoint of the interfacial properties of the electrode/electrolyte interface. Here, we employ ferrocene-terminated self-assembled monolayers as a molecular probe and investigate how the anion-dictated electrochemical responses are translated in terms of the electronic and structural properties of the electrode/monolayer/electrolyte interface. We utilise a photoelectron-based spectroelectrochemical approach that is capable of capturing "snapshots" into (1) anion dependencies of the ferrocene/ferrocenium (Fc/Fc+) redox process including ion-pairing with counter anions (Fc+-anion) caused by differences in Fc+-anion interactions and steric constraints, and (2) interfacial energetics concerning the electrostatic potential across the electrode/monolayer/electrolyte interface. Our work can be extended to provide electrolyte-related structure-property relationships in redox-active polymers and functionalised electrodes for pseudocapacitive energy storage.
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8
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Junghoefer T, Nowik-Boltyk EM, de Sousa JA, Giangrisostomi E, Ovsyannikov R, Chassé T, Veciana J, Mas-Torrent M, Rovira C, Crivillers N, Casu MB. Stability of radical-functionalized gold surfaces by self-assembly and on-surface chemistry. Chem Sci 2020; 11:9162-9172. [PMID: 34123165 PMCID: PMC8163401 DOI: 10.1039/d0sc03399e] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 08/10/2020] [Indexed: 11/23/2022] Open
Abstract
We have investigated the radical functionalization of gold surfaces with a derivative of the perchlorotriphenylmethyl (PTM) radical using two methods: by chemisorption from the radical solution and by on-surface chemical derivation from a precursor. We have investigated the obtained self-assembled monolayers by photon-energy dependent X-ray photoelectron spectroscopy. Our results show that the molecules were successfully anchored on the surfaces. We have used a robust method that can be applied to a variety of materials to assess the stability of the functionalized interface. The monolayers are characterized by air and X-ray beam stability unprecedented for films of organic radicals. Over very long X-ray beam exposure we observed a dynamic nature of the radical-Au complex. The results clearly indicate that (mono)layers of PTM radical derivatives have the necessary stability to withstand device applications.
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Affiliation(s)
- Tobias Junghoefer
- Institute of Physical and Theoretical Chemistry, University of Tübingen 72076 Tübingen Germany
| | | | - J Alejandro de Sousa
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Networking Research Center on Bioengineering Biomaterials and Nanomedicine (CIBER-BBN) Campus de la UAB 08193 Bellaterra Spain
- Laboratorio de Electroquímica, Departamento de Química, Facultad de Ciencias, Universidad de los Andes 5101 Mérida Venezuela
| | | | - Ruslan Ovsyannikov
- Helmholtz-Zentrum Berlin für Materialien und Energie (HZB) 12489 Berlin Germany
| | - Thomas Chassé
- Institute of Physical and Theoretical Chemistry, University of Tübingen 72076 Tübingen Germany
| | - Jaume Veciana
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Networking Research Center on Bioengineering Biomaterials and Nanomedicine (CIBER-BBN) Campus de la UAB 08193 Bellaterra Spain
| | - Marta Mas-Torrent
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Networking Research Center on Bioengineering Biomaterials and Nanomedicine (CIBER-BBN) Campus de la UAB 08193 Bellaterra Spain
| | - Concepció Rovira
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Networking Research Center on Bioengineering Biomaterials and Nanomedicine (CIBER-BBN) Campus de la UAB 08193 Bellaterra Spain
| | - Núria Crivillers
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Networking Research Center on Bioengineering Biomaterials and Nanomedicine (CIBER-BBN) Campus de la UAB 08193 Bellaterra Spain
| | - Maria Benedetta Casu
- Institute of Physical and Theoretical Chemistry, University of Tübingen 72076 Tübingen Germany
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9
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Synthesis, crystal structures and electrochemical properties of ferrocenyl imidazole derivatives. Heliyon 2019; 5:e02580. [PMID: 31692585 PMCID: PMC6806399 DOI: 10.1016/j.heliyon.2019.e02580] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 04/05/2019] [Accepted: 10/02/2019] [Indexed: 01/11/2023] Open
Abstract
Six ferrocenyl imidazole derivatives substituted with -Cl, -NO2 and -CH3 on the 2-position of the 1H-imidazole ring have been synthesized. Of the six compounds, the di-substituted ferrocenes, i.e. compounds 4 (1,1′-ferrocenylmethyl(2-chloroimidazole)), 5 (1,1′-ferrocenyl(2-nitroimidazole)), and 6 (1,1′-ferrocenylmethyl(2-methylimidazole)) are reported for the first time. The structure-property relationships of compounds 4, 5 and 6 were investigated by means of UV-visible, FTIR, 1H-NMR, 13C-NMR spectroscopy and electrochemical studies. UV-visible analysis in acetonitrile showed that the π -π* band of compounds 2 (1-ferrocenylmethyl(2-nitroimidazole)) and 5 appeared at longer wavelength compared to 1 (1-ferrocenylmethyl(2-chloroimidazole)), 3 (1-ferrocenylmethyl(2-methylimidazole)), 4 and 6. This phenomenon is due to the different electronics around the imidazole moieties. In cyclic voltammetry analysis, all compounds exhibited a quasi-reversible redox wave for the ferrocenyl and imidazole moieties. Density functional theoretical (DFT) calculations with the B3LYP/6-311+G(d) basis set were performed on compounds 1–6, and the calculated HUMO-LUMO band gap energies correlated with those obtained from electrochemical and spectroscopic data. The X-ray crystallographic analysis highlighted the effect of electron-withdrawing and electron-donating substituents on the conformation of the cyclopentadienyl rings attached to the ferrocenyl moiety.
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10
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Laucirica G, Marmisollé WA, Toimil-Molares ME, Trautmann C, Azzaroni O. Redox-Driven Reversible Gating of Solid-State Nanochannels. ACS APPLIED MATERIALS & INTERFACES 2019; 11:30001-30009. [PMID: 31335118 DOI: 10.1021/acsami.9b05961] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The design of an electrochemically addressable nanofluidic diode is proposed, which allows tunable and nanofluidic operations via redox gating under electrochemical control. The fabrication process involves the modification of an asymmetric gold-coated solid-state nanopore with a thin layer of a redox polymer, poly(vinylferrocene) (PVFc). The composite nanochannel acts as a gate electrode by changing the electrochemical state and, consequently, the conversion/switching of ferrocene into ferricenium units upon the application of different voltages. It is shown that the electrochemical input accurately controls the surface charge density of the nanochannel walls with a predictable concomitant effect on the rectification properties. PVFc-based nanofluidic devices are able to discriminate the passage of anionic species through the nanochannel in a qualitative and quantitative manner by simply switching the redox potential of the PVFc layer. Experimental data confirmed that a rapid and reversible modulation of the ionic transport regimes can be easily attained by changing the applied potential. This applied potential plays the role of the gate voltage (Vg) in field-effect transistors (FET), so these nanofluidic channels behave as ionic FETs. Depending on the Vg values, the iontronic behavior can be switched between ohmic and diode-like regimes. We believe that this system illustrates the potential of redox-active polymers integrated into nanofluidic devices as plausible, simple, and versatile platforms to create electrochemically addressable nanofluidic devices for multiple applications.
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Affiliation(s)
- Gregorio Laucirica
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas , Universidad Nacional de La Plata (UNLP), CONICET , 64 y Diagonal 113 , 1900 La Plata , Argentina
| | - Waldemar A Marmisollé
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas , Universidad Nacional de La Plata (UNLP), CONICET , 64 y Diagonal 113 , 1900 La Plata , Argentina
| | | | - Christina Trautmann
- GSI Helmholtzzentrum für Schwerionenforschung , 64291 Darmstadt , Germany
- Technische Universität Darmstadt, Material-Wissenschaft , 64287 Darmstadt , Germany
| | - Omar Azzaroni
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas , Universidad Nacional de La Plata (UNLP), CONICET , 64 y Diagonal 113 , 1900 La Plata , Argentina
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11
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Kim YW, Modigunta JKR, Male U, Huh DS. Effect of ferrocene on the fabrication of honeycomb-patterned porous polystyrene films and silver functionalization of the film. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.01.046] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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12
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Clarke CJ, Maxwell-Hogg S, Smith EF, Hawker RR, Harper JB, Licence P. Resolving X-ray photoelectron spectra of ionic liquids with difference spectroscopy. Phys Chem Chem Phys 2018; 21:114-123. [PMID: 30519695 DOI: 10.1039/c8cp06701e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
X-ray photoelectron spectroscopy (XPS) is a powerful element-specific technique to determine the composition and chemical state of all elements in an involatile sample. However, for elements such as carbon, the wide variety of chemical states produce complex spectra that are difficult to interpret, consequently concealing important information due to the uncertainty in signal identity. Here we report a process whereby chemical modification of carbon structures with electron withdrawing groups can reveal this information, providing accurate, highly refined fitting models far more complex than previously possible. This method is demonstrated with functionalised ionic liquids bearing chlorine or trifluoromethane groups that shift electron density from targeted locations. By comparing the C 1s spectra of non-functional ionic liquids to their functional analogues, a series of difference spectra can be produced to identify exact binding energies of carbon photoemissions, which can be used to improve the C 1s peak fitting of both samples. Importantly, ionic liquids possess ideal chemical and physical properties, which enhance this methodology to enable significant progress in XPS peak fitting and data interpretation.
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Affiliation(s)
- Coby J Clarke
- School of Chemistry, The University of Nottingham, University Park, Nottingham, UK.
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13
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Wong RA, Yokota Y, Wakisaka M, Inukai J, Kim Y. Discerning the Redox-Dependent Electronic and Interfacial Structures in Electroactive Self-Assembled Monolayers. J Am Chem Soc 2018; 140:13672-13679. [PMID: 30277764 DOI: 10.1021/jacs.8b05885] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
We explore the redox-dependent electronic and structural changes of ferrocene-terminated self-assembled monolayers (Fc SAMs) immersed in aqueous solution. By exploiting X-ray and ultraviolet photoelectron spectroscopy combined with an electrochemical cell (EC-XPS/UPS), we can electrochemically control the Fc SAMs and spectroscopically probe the induced changes with the ferrocene/ferrocenium (Fc/Fc+) redox center (Fe oxidation state), formation of 1:1 Fc+-ClO4- ion pairs, molecular orientation, and monolayer thickness. We further find the insignificant involvement of interfacial water in the Fc SAMs irrespective of redox state. Electrolyte dependencies could be identified with 0.1 M NaClO4 and HClO4 when probing partially oxidized Fc/Fc+ SAMs. Corroborating the occurrence of electrochemically induced oxidation, EC-UPS shows that oxidation to Fc+ is accompanied by a shift of the highest occupied molecular orbital toward higher binding energy. The oxidation to Fc+ is also met with an increase in work function ascribed to the induced negative interfacial dipole caused by the presence of Fc+-ClO4- ion pairs along with a contribution from the reorientation of the Fc+ SAMs. The reversibility of our observations is confirmed upon conversion from Fc+ back to the neutral Fc. The approach shown here is beneficial for a broad range of redox-responsive systems to aid in the elucidation of structure-function relationships.
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Affiliation(s)
- Raymond A Wong
- Surface and Interface Science Laboratory , RIKEN , 2-1 Hirosawa , Wako , Saitama 351-0198 , Japan
| | - Yasuyuki Yokota
- Surface and Interface Science Laboratory , RIKEN , 2-1 Hirosawa , Wako , Saitama 351-0198 , Japan
| | - Mitsuru Wakisaka
- Graduate School of Engineering , Toyama Prefectural University , 5180 Kurokawa , Imizu , Toyama 939-0398 , Japan
| | - Junji Inukai
- Clean Energy Research Center , University of Yamanashi , 4 Takeda , Kofu , Yamanashi 400-8510 , Japan
| | - Yousoo Kim
- Surface and Interface Science Laboratory , RIKEN , 2-1 Hirosawa , Wako , Saitama 351-0198 , Japan
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14
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Greeson KT, Hall NG, Redeker ND, Marcischak JC, Gilmore LV, Boatz JA, Le TC, Alston JR, Guenthner AJ, Ghiassi KB. Synthesis and properties of symmetrical N,N′-bis(alkyl)imidazolium bromotrichloroferrate(III) paramagnetic, room temperature ionic liquids with high short-term thermal stability. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.06.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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15
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Cortez ML, Lorenzo A, Marmisollé WA, von Bilderling C, Maza E, Pietrasanta L, Battaglini F, Ceolín M, Azzaroni O. Highly-organized stacked multilayers via layer-by-layer assembly of lipid-like surfactants and polyelectrolytes. Stratified supramolecular structures for (bio)electrochemical nanoarchitectonics. SOFT MATTER 2018; 14:1939-1952. [PMID: 29479625 DOI: 10.1039/c8sm00052b] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Supramolecular self-assembly is of paramount importance for the development of novel functional materials with molecular-level feature control. In particular, the interest in creating well-defined stratified multilayers through simple methods using readily available building blocks is motivated by a multitude of research activities in the field of "nanoarchitectonics" as well as evolving technological applications. Herein, we report on the facile preparation and application of highly organized stacked multilayers via layer-by-layer assembly of lipid-like surfactants and polyelectrolytes. Polyelectrolyte multilayers with high degree of stratification of the internal structure were constructed through consecutive assembly of polyallylamine and dodecyl phosphate, a lipid-like surfactant that act as a structure-directing agent. We show that multilayers form well-defined lamellar hydrophilic/hydrophobic domains oriented parallel to the substrate. More important, X-ray reflectivity characterization conclusively revealed the presence of Bragg peaks up to fourth order, evidencing the highly stratified structure of the multilayer. Additionally, hydrophobic lamellar domains were used as hosts for ferrocene in order to create an electrochemically active film displaying spatially-addressed redox units. Stacked multilayers were then assembled integrating redox-tagged polyallylamine and glucose oxidase into the stratified hydrophilic domains. Bioelectrocatalysis and "redox wiring" in the presence of glucose was demonstrated to occur inside the stratified multilayer.
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Affiliation(s)
- M Lorena Cortez
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata - CONICET, La Plata, Argentina.
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16
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Aldous L, Black JJ, Elias MC, Gélinas B, Rochefort D. Enhancing thermoelectrochemical properties by tethering ferrocene to the anion or cation of ionic liquids: altered thermodynamics and solubility. Phys Chem Chem Phys 2018; 19:24255-24263. [PMID: 28848948 DOI: 10.1039/c7cp04322h] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Entropic changes inherent within a redox process typically result in significant temperature sensitivity. This can be utilised positively or can be a detrimental process. This study has investigated the thermoelectrochemical properties (temperature-dependant electrochemistry) of the ferrocenium|ferrocene redox couple in an ionic liquid, and in particular the effect of covalently tethering this redox couple to fixed positive or negative charges. As such, the ionic liquid 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide was employed to dissolve ferrocene, as well as cationic-tethered ferrocene (the 1-ethyl-3-(methylferrocenyl)imidazolium cation) and anionic-tethered ferrocene (the ferrocenylsulfonyl(trifluoromethylsulfonyl)imide anion). These systems were characterised in terms of their voltammetry (apparent formal potentials, diffusion coefficients and electron transfer rate constants) and thermoelectrochemistry (temperature coefficients of the cell potential or 'Seebeck coefficients', short circuit current densities and power density outputs). The oxidised cationic species behaved like a dicationic species and was thus 6-fold more effective at converting waste thermal energy to electrical power within a thermoelectrochemical cell than unmodified ferrocene. This was almost exclusively due to a significant boost in the Seebeck coefficient of this redox couple. Conversely, the oxidised anionic species was formally a zwitterion, but this zwitterionic species behaved thermodynamically like a neutral species. The inverted entropic change upon going from ferrocene to anion-tethered ferrocene allowed development of a largely temperature-insensitive reference potential based upon a mixture of acetylferrocene and ferricenyl(iii)sulfonyl(trifluoromethylsulfonyl)imide.
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Affiliation(s)
- Leigh Aldous
- Department of Chemistry, King's College London, London, SE1 1DB, UK.
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17
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Maier F, Niedermaier I, Steinrück HP. Perspective: Chemical reactions in ionic liquids monitored through the gas (vacuum)/liquid interface. J Chem Phys 2017; 146:170901. [DOI: 10.1063/1.4982355] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- F. Maier
- Lehrstuhl für Physikalische Chemie II, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstr. 3, 91058 Erlangen,
Germany
| | - I. Niedermaier
- Lehrstuhl für Physikalische Chemie II, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstr. 3, 91058 Erlangen,
Germany
| | - H.-P. Steinrück
- Lehrstuhl für Physikalische Chemie II, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstr. 3, 91058 Erlangen,
Germany
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18
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Kumpan N, Poonsawat T, Chaicharoenwimolkul L, Pornsuwan S, Somsook E. Ferrocenated nanocatalysts derived from the decomposition of ferrocenium in basic solution and their aerobic activities for the rapid decolorization of methylene blue and the facile oxidation of phenylboronic acid. RSC Adv 2017. [DOI: 10.1039/c6ra25515a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A strategic preparation of ferrocenated compounds as aerobic catalysts was successfully carried out for the decolorization of methylene blue and oxidation of phenylboronic acid without light irradiation and excess addition of hydrogen peroxide.
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Affiliation(s)
- Nuttapong Kumpan
- NANOCAST Laboratory
- Center for Catalysis Science and Technology (CAST)
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Mahidol University
| | - Thinnaphat Poonsawat
- NANOCAST Laboratory
- Center for Catalysis Science and Technology (CAST)
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Mahidol University
| | | | - Soraya Pornsuwan
- NANOCAST Laboratory
- Center for Catalysis Science and Technology (CAST)
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Mahidol University
| | - Ekasith Somsook
- NANOCAST Laboratory
- Center for Catalysis Science and Technology (CAST)
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Mahidol University
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19
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Zhang L, Vilà N, Klein T, Kohring GW, Mazurenko I, Walcarius A, Etienne M. Immobilization of Cysteine-Tagged Proteins on Electrode Surfaces by Thiol-Ene Click Chemistry. ACS APPLIED MATERIALS & INTERFACES 2016; 8:17591-17598. [PMID: 27299176 DOI: 10.1021/acsami.6b02364] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Thiol-ene click chemistry can be exploited for the immobilization of cysteine-tagged dehydrogenases in an active form onto carbon electrodes (glassy carbon and carbon felt). The electrode surfaces have been first modified with vinylphenyl groups by electrochemical reduction of the corresponding diazonium salts generated in situ from 4-vinylaniline. The grafting process has been optimized in order to not hinder the electrochemical regeneration of NAD(+)/NADH cofactor and soluble mediators such as ferrocenedimethanol and [Cp*Rh(bpy)Cl](+). Having demonstrated the feasibility of thiol-ene click chemistry for attaching ferrocene moieties onto those carbon surfaces, the same approach was then applied to the immobilization of d-sorbitol dehydrogenases with cysteine tag. These proteins can be effectively immobilized (as pointed out by XPS), and the cysteine tag (either 1 or 2 cysteine moieties at the N terminus of the polypeptide chain) was proven to maintain the enzymatic activity of the dehydrogenase upon grafting. The bioelectrode was applied to electroenzymatic enantioselective reduction of d-fructose to d-sorbitol, as a case study.
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Affiliation(s)
- Lin Zhang
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR7564 CNRS - Université de Lorraine , 405, rue de Vandoeuvre, F-54600 Villers-lès-Nancy, France
| | - Neus Vilà
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR7564 CNRS - Université de Lorraine , 405, rue de Vandoeuvre, F-54600 Villers-lès-Nancy, France
| | - Tobias Klein
- Microbiology, Saarland University , Campus, Geb. A1.5, D-66123 Saarbruecken, Germany
| | - Gert-Wieland Kohring
- Microbiology, Saarland University , Campus, Geb. A1.5, D-66123 Saarbruecken, Germany
| | - Ievgen Mazurenko
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR7564 CNRS - Université de Lorraine , 405, rue de Vandoeuvre, F-54600 Villers-lès-Nancy, France
| | - Alain Walcarius
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR7564 CNRS - Université de Lorraine , 405, rue de Vandoeuvre, F-54600 Villers-lès-Nancy, France
| | - Mathieu Etienne
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR7564 CNRS - Université de Lorraine , 405, rue de Vandoeuvre, F-54600 Villers-lès-Nancy, France
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Oparina LA, Artem'ev AV, Vysotskaya OV, Tarasova OA, Shagun VA, Bagryanskaya IY, Trofimov BA. Unexpected acid-catalyzed ferrocenylmethylation of diverse nucleophiles with vinyloxymethylferrocene. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.06.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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21
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22
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Electrochemical and physicochemical properties of redox ionic liquids using electroactive anions: influence of alkylimidazolium chain length. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.03.075] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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23
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Gélinas B, Rochefort D. Synthesis and characterization of an electroactive ionic liquid based on the ferrocenylsulfonyl(trifluoromethylsulfonyl)imide anion. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2014.11.154] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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24
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Santos AR, Blundell RK, Licence P. XPS of guanidinium ionic liquids: a comparison of charge distribution in nitrogenous cations. Phys Chem Chem Phys 2015; 17:11839-47. [DOI: 10.1039/c5cp01069a] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
We report first X-ray photoelectron spectroscopy (XPS) for a range of functionalised guanidinium based systems that find application in the dissolution of biomolecules. Measured binding energies are compared to those of more common ionic liquid families containing other nitrogen based cations.
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Affiliation(s)
- Ana R. Santos
- School of Chemistry
- The University of Nottingham
- Nottingham NG7 2RD
- UK
| | | | - Peter Licence
- School of Chemistry
- The University of Nottingham
- Nottingham NG7 2RD
- UK
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25
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Jinasan A, Poonsawat T, Chaicharoenwimolkul L, Pornsuwan S, Somsook E. Highly active sustainable ferrocenated iron oxide nanocatalysts for the decolorization of methylene blue. RSC Adv 2015. [DOI: 10.1039/c5ra03885e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Ferrocenated iron oxide nanoparticles were successfully synthesized in basic conditions.
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Affiliation(s)
- Atchaleeya Jinasan
- NANOCAST Laboratory
- Center for Catalysis
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Mahidol University
| | - Thinnaphat Poonsawat
- NANOCAST Laboratory
- Center for Catalysis
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Mahidol University
| | | | - Soraya Pornsuwan
- NANOCAST Laboratory
- Center for Catalysis
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Mahidol University
| | - Ekasith Somsook
- NANOCAST Laboratory
- Center for Catalysis
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Mahidol University
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26
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Gharib B, Hirsch A. Synthesis and Characterization of New Ferrocene-Containing Ionic Liquids. European J Org Chem 2014. [DOI: 10.1002/ejoc.201400061] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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27
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Fukino T, Joo H, Hisada Y, Obana M, Yamagishi H, Hikima T, Takata M, Fujita N, Aida T. Manipulation of discrete nanostructures by selective modulation of noncovalent forces. Science 2014; 344:499-504. [PMID: 24786075 DOI: 10.1126/science.1252120] [Citation(s) in RCA: 120] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Covalent organic synthesis commonly uses the strategy of selective bond cleavage and formation. If a similar approach can be applied stepwisely to noncovalent synthesis, more exotic or challenging nanostructures might become achievable. Here, we report that ferrocene-based tetratopic pyridyl ligands, which can dynamically change their geometry by means of thermal rotation of their cyclopentadienyl rings in solution, assemble with AgBF4 into discrete metal-organic nanotubes with large and uniform diameters. The nanotubes can be cut into metal-organic nanorings through selective attenuation of the inter-nanoring interaction via ferrocene oxidation. The resultant nanorings can be transferred onto inorganic substrates electrostatically or allowed to reassemble to form the original nanotube by the reductive neutralization of their oxidized ferrocene units.
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Affiliation(s)
- Takahiro Fukino
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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Forgie JC, El Khakani S, MacNeil DD, Rochefort D. Electrochemical characterisation of a lithium-ion battery electrolyte based on mixtures of carbonates with a ferrocene-functionalised imidazolium electroactive ionic liquid. Phys Chem Chem Phys 2013; 15:7713-21. [DOI: 10.1039/c3cp50560j] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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29
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Taylor AW, Men S, Clarke CJ, Licence P. Acidity and basicity of halometallate-based ionic liquids from X-ray photoelectron spectroscopy. RSC Adv 2013. [DOI: 10.1039/c3ra40260f] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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30
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Nyamori VO, Zulu SM, Omondi B. 1-(Ferrocen-1-ylmethyl)-3-methylimidazol-3-ium iodide. Acta Crystallogr Sect E Struct Rep Online 2012; 68:m1469. [PMID: 23468696 PMCID: PMC3588731 DOI: 10.1107/s1600536812045400] [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: 10/04/2012] [Accepted: 11/02/2012] [Indexed: 11/25/2022]
Abstract
The structure of the title compound, [Fe(C5H5)(C10H12N2)]I, consists of a 1-(ferrocen-1-ylmethyl)-3-methylimidazolium cation which is counter-balanced by an iodide anion. The cyclopentadienyl (Cp) rings of the ferrocene unit have a slightly staggered conformation skewed from an ideal eclipsed conformation by an angle of 3.5 (6)°. The interplanar angle between the Cp and the imidazole ring is 67.94 (2)°.
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