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UV laser spectroscopy of mass-selected ionic liquid building blocks in the gas-phase.

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Title: UV laser spectroscopy of mass-selected ionic liquid building blocks in the gas-phase.
Authors: Harvey, Andrew J.A.1, Sen, Ananya1, Yoshikawa, Naruo1, Dessent, Caroline E.H.1 caroline.dessent@york.ac.uk
Source: Chemical Physics Letters. Aug2015, Vol. 634, p216-220. 5p.
Subjects: Ionic liquids, Ultraviolet lasers, Electronic spectra, Fragmentation reactions, Ultraviolet spectroscopy, Absorption
Abstract: We report the first UV laser action spectra of mass-selected aggregates composed of the cationic and anionic constituents of two ionic liquids, i.e. [BMIM + ] n [Tf 2 N − ] m and [EMIM + ] n [Tf 2 N − ] m where n ≠ m and n , m = 1,2. Each aggregate cluster displays a maximum absorption at 220 nm, the high energy limit scanned. However, the anionic and cationic aggregate photofragmentation cross-sections are notably different, indicating distinctive decay mechanisms. We compare our spectra to other gas-phase spectroscopic methods and discuss the general utility of our technique as a facile route to obtaining gas-phase electronic spectra of isolated ionic liquids. [ABSTRACT FROM AUTHOR]
Copyright of Chemical Physics Letters 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: 108700452
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PubTypeId: academicJournal
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  Data: UV laser spectroscopy of mass-selected ionic liquid building blocks in the gas-phase.
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  Data: <searchLink fieldCode="AR" term="%22Harvey%2C+Andrew+J%2EA%2E%22">Harvey, Andrew J.A.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Sen%2C+Ananya%22">Sen, Ananya</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Yoshikawa%2C+Naruo%22">Yoshikawa, Naruo</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Dessent%2C+Caroline+E%2EH%2E%22">Dessent, Caroline E.H.</searchLink><relatesTo>1</relatesTo><i> caroline.dessent@york.ac.uk</i>
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  Data: <searchLink fieldCode="JN" term="%22Chemical+Physics+Letters%22">Chemical Physics Letters</searchLink>. Aug2015, Vol. 634, p216-220. 5p.
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  Data: <searchLink fieldCode="DE" term="%22Ionic+liquids%22">Ionic liquids</searchLink><br /><searchLink fieldCode="DE" term="%22Ultraviolet+lasers%22">Ultraviolet lasers</searchLink><br /><searchLink fieldCode="DE" term="%22Electronic+spectra%22">Electronic spectra</searchLink><br /><searchLink fieldCode="DE" term="%22Fragmentation+reactions%22">Fragmentation reactions</searchLink><br /><searchLink fieldCode="DE" term="%22Ultraviolet+spectroscopy%22">Ultraviolet spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Absorption%22">Absorption</searchLink>
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  Data: We report the first UV laser action spectra of mass-selected aggregates composed of the cationic and anionic constituents of two ionic liquids, i.e. [BMIM + ] n [Tf 2 N − ] m and [EMIM + ] n [Tf 2 N − ] m where n ≠ m and n , m = 1,2. Each aggregate cluster displays a maximum absorption at 220 nm, the high energy limit scanned. However, the anionic and cationic aggregate photofragmentation cross-sections are notably different, indicating distinctive decay mechanisms. We compare our spectra to other gas-phase spectroscopic methods and discuss the general utility of our technique as a facile route to obtaining gas-phase electronic spectra of isolated ionic liquids. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Chemical Physics Letters 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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        Value: 10.1016/j.cplett.2015.06.023
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        Text: English
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        Type: general
      – SubjectFull: Ultraviolet lasers
        Type: general
      – SubjectFull: Electronic spectra
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      – SubjectFull: Fragmentation reactions
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      – SubjectFull: Ultraviolet spectroscopy
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      – SubjectFull: Absorption
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      – TitleFull: UV laser spectroscopy of mass-selected ionic liquid building blocks in the gas-phase.
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              Text: Aug2015
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