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Electric field induced proton transfer at α,ω-mercaptoalkanecarboxylic acids self-assembled monolayers of different chain length.

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Title: Electric field induced proton transfer at α,ω-mercaptoalkanecarboxylic acids self-assembled monolayers of different chain length.
Authors: Smiljanić, Milutin1, Adam, Catherine1, Doneux, Thomas1 tdoneux@ulb.ac.be
Source: Journal of Electroanalytical Chemistry. Apr2018, Vol. 815, p238-245. 8p.
Subjects: Electric field effects, Proton transfer reactions, Carboxylic acids, Voltammetry, Monomolecular films
Abstract: A comprehensive experimental investigation of the influence of the chain length on the electric field induced proton transfer at α,ω-mercaptoalkanecarboxylic acids self-assembled monolayers (SAMs) is conducted by means of voltammetric and electrochemical impedance spectroscopic measurements. The chain length has a significant impact on the total protonation/deprotonation charge and on the kinetics of the phenomenon. The results are discussed in light of existing theoretical models describing this electric field driven protonation/deprotonation process. Characteristic proton transfer frequencies were independently determined by impedance spectroscopy and by scan rate dependent voltammetric analyses. The two types of measurements are in mutual agreement and show that the protonation/deprotonation slows down as the chain length increases. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Electroanalytical Chemistry is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 128955920
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  Data: Electric field induced proton transfer at α,ω-mercaptoalkanecarboxylic acids self-assembled monolayers of different chain length.
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  Data: <searchLink fieldCode="AR" term="%22Smiljanić%2C+Milutin%22">Smiljanić, Milutin</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Adam%2C+Catherine%22">Adam, Catherine</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Doneux%2C+Thomas%22">Doneux, Thomas</searchLink><relatesTo>1</relatesTo><i> tdoneux@ulb.ac.be</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Electroanalytical+Chemistry%22">Journal of Electroanalytical Chemistry</searchLink>. Apr2018, Vol. 815, p238-245. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Electric+field+effects%22">Electric field effects</searchLink><br /><searchLink fieldCode="DE" term="%22Proton+transfer+reactions%22">Proton transfer reactions</searchLink><br /><searchLink fieldCode="DE" term="%22Carboxylic+acids%22">Carboxylic acids</searchLink><br /><searchLink fieldCode="DE" term="%22Voltammetry%22">Voltammetry</searchLink><br /><searchLink fieldCode="DE" term="%22Monomolecular+films%22">Monomolecular films</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: A comprehensive experimental investigation of the influence of the chain length on the electric field induced proton transfer at α,ω-mercaptoalkanecarboxylic acids self-assembled monolayers (SAMs) is conducted by means of voltammetric and electrochemical impedance spectroscopic measurements. The chain length has a significant impact on the total protonation/deprotonation charge and on the kinetics of the phenomenon. The results are discussed in light of existing theoretical models describing this electric field driven protonation/deprotonation process. Characteristic proton transfer frequencies were independently determined by impedance spectroscopy and by scan rate dependent voltammetric analyses. The two types of measurements are in mutual agreement and show that the protonation/deprotonation slows down as the chain length increases. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Electroanalytical Chemistry is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.jelechem.2018.03.010
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      – Code: eng
        Text: English
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        PageCount: 8
        StartPage: 238
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      – SubjectFull: Electric field effects
        Type: general
      – SubjectFull: Proton transfer reactions
        Type: general
      – SubjectFull: Carboxylic acids
        Type: general
      – SubjectFull: Voltammetry
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      – SubjectFull: Monomolecular films
        Type: general
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      – TitleFull: Electric field induced proton transfer at α,ω-mercaptoalkanecarboxylic acids self-assembled monolayers of different chain length.
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              Text: Apr2018
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