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Quinone based oligomeric sensors as colorimetric probes for cyanide anion: Effects of solvent medium and substituent on sensing.

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Title: Quinone based oligomeric sensors as colorimetric probes for cyanide anion: Effects of solvent medium and substituent on sensing.
Authors: Reddy, P. Madhusudhana1, Hsieh, Shih-Rong2, Wu, Wan-Chi1, Chang, Chi-Jung1 changcj@fcu.edu.tw, Chen, Yi-Shao1, Lee, Ming-Ching2
Source: Reactive & Functional Polymers. Feb2018, Vol. 123, p26-33. 8p.
Subjects: Oligomerization, Colorimetric analysis, Quinone compounds, Thiourea, Ion exchange chromatography, Physiology
Abstract: The main objective of the present study is to understand the structure-property relationships of sensor capable of colorimetric response, upon the addition of particular anions, due to hydrogen-bonding association between sensor and anion. Further, hydrogen-bonding association between sensor and anion, and thereby colorimetric response of the receptor in various solvent media was also targeted. For this, we have synthesized chloro-substituted quinone based oligomer sensor (QO-Cl) and cyano-substituted quinone based oligomer sensor (QO-CN), which contain the thiourea as a binding site. These oligomeric sensors were exploited as colorimetric sensors for cyanide anion [CN − ]. Further, the sensing abilities of these sensors for CN − recognition in various solvents were monitored to investigate the influence of solvent on the hydrogen bonding association between sensor and anion. Our colorimetric and spectrometric results unveiled that the QO-CN sensor has shown the better binding constant (K QO-CN - CN − = 39,317 M − 1 ) and detection of limit (DOL = 1.2 μM) for CN − than that of QO-Cl, (K QO-Cl - CN − = 1950 M − 1 ; DOL = 69 μM). This can be attributed to the higher electron withdrawing nature of C N than the moderately electron-withdrawing substituent Cl. [ABSTRACT FROM AUTHOR]
Copyright of Reactive & Functional Polymers 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.)
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DbLabel: Engineering Source
An: 127311374
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  Label: Title
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  Data: Quinone based oligomeric sensors as colorimetric probes for cyanide anion: Effects of solvent medium and substituent on sensing.
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  Data: <searchLink fieldCode="AR" term="%22Reddy%2C+P%2E+Madhusudhana%22">Reddy, P. Madhusudhana</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Hsieh%2C+Shih-Rong%22">Hsieh, Shih-Rong</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Wu%2C+Wan-Chi%22">Wu, Wan-Chi</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Chang%2C+Chi-Jung%22">Chang, Chi-Jung</searchLink><relatesTo>1</relatesTo><i> changcj@fcu.edu.tw</i><br /><searchLink fieldCode="AR" term="%22Chen%2C+Yi-Shao%22">Chen, Yi-Shao</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Lee%2C+Ming-Ching%22">Lee, Ming-Ching</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Reactive+%26+Functional+Polymers%22">Reactive & Functional Polymers</searchLink>. Feb2018, Vol. 123, p26-33. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Oligomerization%22">Oligomerization</searchLink><br /><searchLink fieldCode="DE" term="%22Colorimetric+analysis%22">Colorimetric analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Quinone+compounds%22">Quinone compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Thiourea%22">Thiourea</searchLink><br /><searchLink fieldCode="DE" term="%22Ion+exchange+chromatography%22">Ion exchange chromatography</searchLink><br /><searchLink fieldCode="DE" term="%22Physiology%22">Physiology</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: The main objective of the present study is to understand the structure-property relationships of sensor capable of colorimetric response, upon the addition of particular anions, due to hydrogen-bonding association between sensor and anion. Further, hydrogen-bonding association between sensor and anion, and thereby colorimetric response of the receptor in various solvent media was also targeted. For this, we have synthesized chloro-substituted quinone based oligomer sensor (QO-Cl) and cyano-substituted quinone based oligomer sensor (QO-CN), which contain the thiourea as a binding site. These oligomeric sensors were exploited as colorimetric sensors for cyanide anion [CN − ]. Further, the sensing abilities of these sensors for CN − recognition in various solvents were monitored to investigate the influence of solvent on the hydrogen bonding association between sensor and anion. Our colorimetric and spectrometric results unveiled that the QO-CN sensor has shown the better binding constant (K QO-CN - CN − = 39,317 M − 1 ) and detection of limit (DOL = 1.2 μM) for CN − than that of QO-Cl, (K QO-Cl - CN − = 1950 M − 1 ; DOL = 69 μM). This can be attributed to the higher electron withdrawing nature of C N than the moderately electron-withdrawing substituent Cl. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Reactive & Functional Polymers 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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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.reactfunctpolym.2017.12.007
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 8
        StartPage: 26
    Subjects:
      – SubjectFull: Oligomerization
        Type: general
      – SubjectFull: Colorimetric analysis
        Type: general
      – SubjectFull: Quinone compounds
        Type: general
      – SubjectFull: Thiourea
        Type: general
      – SubjectFull: Ion exchange chromatography
        Type: general
      – SubjectFull: Physiology
        Type: general
    Titles:
      – TitleFull: Quinone based oligomeric sensors as colorimetric probes for cyanide anion: Effects of solvent medium and substituent on sensing.
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            NameFull: Reddy, P. Madhusudhana
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            NameFull: Hsieh, Shih-Rong
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            NameFull: Wu, Wan-Chi
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            NameFull: Chang, Chi-Jung
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            NameFull: Chen, Yi-Shao
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              Text: Feb2018
              Type: published
              Y: 2018
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              Value: 123
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