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Foreign gas broadening of an IR absorption line of formaldehyde

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Title: Foreign gas broadening of an IR absorption line of formaldehyde
Authors: Burkart, M.1, Schramm, B. bernhard.schramm@urz.uni-heidelberg.de
Source: Journal of Molecular Spectroscopy. Feb2003, Vol. 217 Issue 2, p153. 4p.
Subjects: Pressure broadening, Formaldehyde
Abstract: The theory of nuclear spin state relaxation of symmetrical molecules like formaldehyde contains a collision time tc that is interpreted as time between rotationally inelastic molecular collisions. This time traditionally is determined from measurements of pressure broadening of spectral lines. In order to test whether these collision times, which determine spin relaxation rate constants and line broadening coefficients, respectively, are the same or at least related to another, we have performed systematic measurements of the broadening of an IR line of formaldehyde by other gases of different pressures. [Copyright &y& Elsevier]
Copyright of Journal of Molecular Spectroscopy is the property of Academic Press Inc. 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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Header DbId: egs
DbLabel: Engineering Source
An: 9194235
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Foreign gas broadening of an IR absorption line of formaldehyde
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  Data: <searchLink fieldCode="DE" term="%22Pressure+broadening%22">Pressure broadening</searchLink><br /><searchLink fieldCode="DE" term="%22Formaldehyde%22">Formaldehyde</searchLink>
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  Data: The theory of nuclear spin state relaxation of symmetrical molecules like formaldehyde contains a collision time <f>tc</f> that is interpreted as time between rotationally inelastic molecular collisions. This time traditionally is determined from measurements of pressure broadening of spectral lines. In order to test whether these collision times, which determine spin relaxation rate constants and line broadening coefficients, respectively, are the same or at least related to another, we have performed systematic measurements of the broadening of an IR line of formaldehyde by other gases of different pressures. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Molecular Spectroscopy is the property of Academic Press Inc. 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/S0022-2852(02)00049-8
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      – Code: eng
        Text: English
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        PageCount: 4
        StartPage: 153
    Subjects:
      – SubjectFull: Pressure broadening
        Type: general
      – SubjectFull: Formaldehyde
        Type: general
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      – TitleFull: Foreign gas broadening of an IR absorption line of formaldehyde
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              Text: Feb2003
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              Y: 2003
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