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Absorption, Fluorescence and Emission Anisotropy Spectra of 4-Cyano-N,N-dimethylaniline in Different Media and at Different Temperatures
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| Zeitschriftentitel: | Zeitschrift für Naturforschung A |
|---|---|
| Personen und Körperschaften: | , |
| In: | Zeitschrift für Naturforschung A, 52, 1997, 5, S. 409-414 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Walter de Gruyter GmbH
|
| Schlagwörter: |
| author_facet |
Kawski, A. Piszczek, G. Kawski, A. Piszczek, G. |
|---|---|
| author |
Kawski, A. Piszczek, G. |
| spellingShingle |
Kawski, A. Piszczek, G. Zeitschrift für Naturforschung A Absorption, Fluorescence and Emission Anisotropy Spectra of 4-Cyano-N,N-dimethylaniline in Different Media and at Different Temperatures Physical and Theoretical Chemistry General Physics and Astronomy Mathematical Physics |
| author_sort |
kawski, a. |
| spelling |
Kawski, A. Piszczek, G. 1865-7109 0932-0784 Walter de Gruyter GmbH Physical and Theoretical Chemistry General Physics and Astronomy Mathematical Physics http://dx.doi.org/10.1515/zna-1997-0506 <jats:title>Abstract</jats:title> <jats:p> The effect of temperature on fluorescence and emission anisotropy spectra of 4-cyano-N,N-dimethylaniline (CDMA) was investigated in viscous (glycerol and paraffin oil) and rigid (polyvinyl alcohol) PVA and polyvinyl chloride) PVC) media. A strong effect of temperature on the intensity of a and b emission bands was observed. It was also found that the emission anisotropy, r, does not vary in the longwave emission band a at a fixed temperature but decreases in the emission band b together with the decreasing wavelength. The latter effect is due to the fact that the transition moment in this band is perpendicular to the long axis of the CDMA molecule. For CDMA in paraffin oil, a normal b band with negative emission anisotropy only occurs. In all other media used, the emission anisotropy has lower values, approaching zero, which results from the considerable covering of band b with a broad emission band a.</jats:p> Absorption, Fluorescence and Emission Anisotropy Spectra of 4-Cyano-N,N-dimethylaniline in Different Media and at Different Temperatures Zeitschrift für Naturforschung A |
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Absorption, Fluorescence and Emission Anisotropy Spectra of 4-Cyano-N,N-dimethylaniline in Different Media and at Different Temperatures |
| title_unstemmed |
Absorption, Fluorescence and Emission Anisotropy Spectra of 4-Cyano-N,N-dimethylaniline in Different Media and at Different Temperatures |
| title_full |
Absorption, Fluorescence and Emission Anisotropy Spectra of 4-Cyano-N,N-dimethylaniline in Different Media and at Different Temperatures |
| title_fullStr |
Absorption, Fluorescence and Emission Anisotropy Spectra of 4-Cyano-N,N-dimethylaniline in Different Media and at Different Temperatures |
| title_full_unstemmed |
Absorption, Fluorescence and Emission Anisotropy Spectra of 4-Cyano-N,N-dimethylaniline in Different Media and at Different Temperatures |
| title_short |
Absorption, Fluorescence and Emission Anisotropy Spectra of 4-Cyano-N,N-dimethylaniline in Different Media and at Different Temperatures |
| title_sort |
absorption, fluorescence and emission anisotropy spectra of 4-cyano-n,n-dimethylaniline in different media and at different temperatures |
| topic |
Physical and Theoretical Chemistry General Physics and Astronomy Mathematical Physics |
| url |
http://dx.doi.org/10.1515/zna-1997-0506 |
| publishDate |
1997 |
| physical |
409-414 |
| description |
<jats:title>Abstract</jats:title>
<jats:p> The effect of temperature on fluorescence and emission anisotropy spectra of 4-cyano-N,N-dimethylaniline (CDMA) was investigated in viscous (glycerol and paraffin oil) and rigid (polyvinyl alcohol) PVA and polyvinyl chloride) PVC) media. A strong effect of temperature on the intensity of a and b emission bands was observed. It was also found that the emission anisotropy, r, does not vary in the longwave emission band a at a fixed temperature but decreases in the emission band b together with the decreasing wavelength. The latter effect is due to the fact that the transition moment in this band is perpendicular to the long axis of the CDMA molecule. For CDMA in paraffin oil, a normal b band with negative emission anisotropy only occurs. In all other media used, the emission anisotropy has lower values, approaching zero, which results from the considerable covering of band b with a broad emission band a.</jats:p> |
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| author | Kawski, A., Piszczek, G. |
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| description | <jats:title>Abstract</jats:title> <jats:p> The effect of temperature on fluorescence and emission anisotropy spectra of 4-cyano-N,N-dimethylaniline (CDMA) was investigated in viscous (glycerol and paraffin oil) and rigid (polyvinyl alcohol) PVA and polyvinyl chloride) PVC) media. A strong effect of temperature on the intensity of a and b emission bands was observed. It was also found that the emission anisotropy, r, does not vary in the longwave emission band a at a fixed temperature but decreases in the emission band b together with the decreasing wavelength. The latter effect is due to the fact that the transition moment in this band is perpendicular to the long axis of the CDMA molecule. For CDMA in paraffin oil, a normal b band with negative emission anisotropy only occurs. In all other media used, the emission anisotropy has lower values, approaching zero, which results from the considerable covering of band b with a broad emission band a.</jats:p> |
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| physical | 409-414 |
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| spelling | Kawski, A. Piszczek, G. 1865-7109 0932-0784 Walter de Gruyter GmbH Physical and Theoretical Chemistry General Physics and Astronomy Mathematical Physics http://dx.doi.org/10.1515/zna-1997-0506 <jats:title>Abstract</jats:title> <jats:p> The effect of temperature on fluorescence and emission anisotropy spectra of 4-cyano-N,N-dimethylaniline (CDMA) was investigated in viscous (glycerol and paraffin oil) and rigid (polyvinyl alcohol) PVA and polyvinyl chloride) PVC) media. A strong effect of temperature on the intensity of a and b emission bands was observed. It was also found that the emission anisotropy, r, does not vary in the longwave emission band a at a fixed temperature but decreases in the emission band b together with the decreasing wavelength. The latter effect is due to the fact that the transition moment in this band is perpendicular to the long axis of the CDMA molecule. For CDMA in paraffin oil, a normal b band with negative emission anisotropy only occurs. In all other media used, the emission anisotropy has lower values, approaching zero, which results from the considerable covering of band b with a broad emission band a.</jats:p> Absorption, Fluorescence and Emission Anisotropy Spectra of 4-Cyano-N,N-dimethylaniline in Different Media and at Different Temperatures Zeitschrift für Naturforschung A |
| spellingShingle | Kawski, A., Piszczek, G., Zeitschrift für Naturforschung A, Absorption, Fluorescence and Emission Anisotropy Spectra of 4-Cyano-N,N-dimethylaniline in Different Media and at Different Temperatures, Physical and Theoretical Chemistry, General Physics and Astronomy, Mathematical Physics |
| title | Absorption, Fluorescence and Emission Anisotropy Spectra of 4-Cyano-N,N-dimethylaniline in Different Media and at Different Temperatures |
| title_full | Absorption, Fluorescence and Emission Anisotropy Spectra of 4-Cyano-N,N-dimethylaniline in Different Media and at Different Temperatures |
| title_fullStr | Absorption, Fluorescence and Emission Anisotropy Spectra of 4-Cyano-N,N-dimethylaniline in Different Media and at Different Temperatures |
| title_full_unstemmed | Absorption, Fluorescence and Emission Anisotropy Spectra of 4-Cyano-N,N-dimethylaniline in Different Media and at Different Temperatures |
| title_short | Absorption, Fluorescence and Emission Anisotropy Spectra of 4-Cyano-N,N-dimethylaniline in Different Media and at Different Temperatures |
| title_sort | absorption, fluorescence and emission anisotropy spectra of 4-cyano-n,n-dimethylaniline in different media and at different temperatures |
| title_unstemmed | Absorption, Fluorescence and Emission Anisotropy Spectra of 4-Cyano-N,N-dimethylaniline in Different Media and at Different Temperatures |
| topic | Physical and Theoretical Chemistry, General Physics and Astronomy, Mathematical Physics |
| url | http://dx.doi.org/10.1515/zna-1997-0506 |