The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Maria Saarinen - One of the best experts on this subject based on the ideXlab platform.
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high Resolution photoacoustic overtone spectrum of monochloroacetylene using a titanium sapphire ring laser spectrometer
Chemical Physics Letters, 1994Co-Authors: Maria Saarinen, Lauri Halonen, O PolanzAbstract:Abstract The photoacoustic overtone spectrum of monochloroacetylene (monochloroethyne, HCCCl) has been recorded in the wave-number region 9500–14400 cm −1 with a titanium:sapphire ring laser. The spectrum shows several vibration—rotation band systems of which 3ν 1 +ν 2 and 4ν 1 have been recorded with Doppler-Limited Resolution. Many overtone and hot bands belonging to 35 Cl and 37 Cl species have been analyzed rotationally. Some of the observed bands show rotational perturbations. Two of these bands have successfully been interpreted as a Fermi resonance pair.
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high Resolution photoacoustic overtone spectroscopy of monofluoroacetylene hccf with a titanium sapphire ring laser
Journal of Chemical Physics, 1993Co-Authors: Olavi Vaittinen, Maria Saarinen, Lauri Halonen, I M MillsAbstract:Intracavity photoacoustic overtone spectrum of monofluoroacetylene, HCCF, has been recorded in the wave number region 10 750–14 500 cm−1 with a titanium:sapphire ring laser. The spectrum contains many dense vibration–rotation band systems which can be resolved with Doppler Limited Resolution. Altogether 58 individual overtone bands have been analyzed rotationally. Many of the observed bands show perturbations of which some have been attributed to anharmonic resonance interactions. A Fermi resonance model based on conventional rectilinear normal coordinate theory has been used to assign vibrationally bands from this work and from earlier studies. Many of the observed vibrational term values and rotational constants can be reproduced well with this model. The results show the importance of the Fermi resonance interactions at the high overtone excitations.
Lauri Halonen - One of the best experts on this subject based on the ideXlab platform.
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high Resolution photoacoustic overtone spectrum of monochloroacetylene using a titanium sapphire ring laser spectrometer
Chemical Physics Letters, 1994Co-Authors: Maria Saarinen, Lauri Halonen, O PolanzAbstract:Abstract The photoacoustic overtone spectrum of monochloroacetylene (monochloroethyne, HCCCl) has been recorded in the wave-number region 9500–14400 cm −1 with a titanium:sapphire ring laser. The spectrum shows several vibration—rotation band systems of which 3ν 1 +ν 2 and 4ν 1 have been recorded with Doppler-Limited Resolution. Many overtone and hot bands belonging to 35 Cl and 37 Cl species have been analyzed rotationally. Some of the observed bands show rotational perturbations. Two of these bands have successfully been interpreted as a Fermi resonance pair.
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high Resolution photoacoustic overtone spectroscopy of monofluoroacetylene hccf with a titanium sapphire ring laser
Journal of Chemical Physics, 1993Co-Authors: Olavi Vaittinen, Maria Saarinen, Lauri Halonen, I M MillsAbstract:Intracavity photoacoustic overtone spectrum of monofluoroacetylene, HCCF, has been recorded in the wave number region 10 750–14 500 cm−1 with a titanium:sapphire ring laser. The spectrum contains many dense vibration–rotation band systems which can be resolved with Doppler Limited Resolution. Altogether 58 individual overtone bands have been analyzed rotationally. Many of the observed bands show perturbations of which some have been attributed to anharmonic resonance interactions. A Fermi resonance model based on conventional rectilinear normal coordinate theory has been used to assign vibrationally bands from this work and from earlier studies. Many of the observed vibrational term values and rotational constants can be reproduced well with this model. The results show the importance of the Fermi resonance interactions at the high overtone excitations.
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high Resolution photoacoustic study of the ν1 3ν3 band system of acetylene with a titanium sapphire ring laser
Journal of Molecular Spectroscopy, 1993Co-Authors: Xiaowei Zhan, Lauri HalonenAbstract:Abstract The ν1 + 3ν3 band system of natural acetylene has been recorded with Doppler-Limited Resolution using a titanium:sapphire ring laser together with a intracavity photoacoustic detection method. The ν1 + 3ν3 band appears by far as the strongest feature in the spectrum but there are many weaker bands nearby. In the wavenumber region 12 450-12 800 cm−1 we have analyzed rotationally 19 overtone and hot bands belonging to the 12C2H2 species and 2 overtone bands belonging to 12C13CH2. Many of the observed bands show perturbations. Some of these have been analyzed successfully with Coriolis or Fermi resonance models.
O Polanz - One of the best experts on this subject based on the ideXlab platform.
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high Resolution photoacoustic overtone spectrum of monochloroacetylene using a titanium sapphire ring laser spectrometer
Chemical Physics Letters, 1994Co-Authors: Maria Saarinen, Lauri Halonen, O PolanzAbstract:Abstract The photoacoustic overtone spectrum of monochloroacetylene (monochloroethyne, HCCCl) has been recorded in the wave-number region 9500–14400 cm −1 with a titanium:sapphire ring laser. The spectrum shows several vibration—rotation band systems of which 3ν 1 +ν 2 and 4ν 1 have been recorded with Doppler-Limited Resolution. Many overtone and hot bands belonging to 35 Cl and 37 Cl species have been analyzed rotationally. Some of the observed bands show rotational perturbations. Two of these bands have successfully been interpreted as a Fermi resonance pair.
I M Mills - One of the best experts on this subject based on the ideXlab platform.
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high Resolution photoacoustic overtone spectroscopy of monofluoroacetylene hccf with a titanium sapphire ring laser
Journal of Chemical Physics, 1993Co-Authors: Olavi Vaittinen, Maria Saarinen, Lauri Halonen, I M MillsAbstract:Intracavity photoacoustic overtone spectrum of monofluoroacetylene, HCCF, has been recorded in the wave number region 10 750–14 500 cm−1 with a titanium:sapphire ring laser. The spectrum contains many dense vibration–rotation band systems which can be resolved with Doppler Limited Resolution. Altogether 58 individual overtone bands have been analyzed rotationally. Many of the observed bands show perturbations of which some have been attributed to anharmonic resonance interactions. A Fermi resonance model based on conventional rectilinear normal coordinate theory has been used to assign vibrationally bands from this work and from earlier studies. Many of the observed vibrational term values and rotational constants can be reproduced well with this model. The results show the importance of the Fermi resonance interactions at the high overtone excitations.
Olavi Vaittinen - One of the best experts on this subject based on the ideXlab platform.
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high Resolution photoacoustic overtone spectroscopy of monofluoroacetylene hccf with a titanium sapphire ring laser
Journal of Chemical Physics, 1993Co-Authors: Olavi Vaittinen, Maria Saarinen, Lauri Halonen, I M MillsAbstract:Intracavity photoacoustic overtone spectrum of monofluoroacetylene, HCCF, has been recorded in the wave number region 10 750–14 500 cm−1 with a titanium:sapphire ring laser. The spectrum contains many dense vibration–rotation band systems which can be resolved with Doppler Limited Resolution. Altogether 58 individual overtone bands have been analyzed rotationally. Many of the observed bands show perturbations of which some have been attributed to anharmonic resonance interactions. A Fermi resonance model based on conventional rectilinear normal coordinate theory has been used to assign vibrationally bands from this work and from earlier studies. Many of the observed vibrational term values and rotational constants can be reproduced well with this model. The results show the importance of the Fermi resonance interactions at the high overtone excitations.