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- C. D. Jonah
- Department of Chemistry, Columbia University, New York, New York
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- R. N. Zare
- Department of Chemistry, Columbia University, New York, New York
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- Ch. Ottinger
- Max-Planck-Institut für Strömungsforschung, Göttingen, Germany
書誌事項
- 公開日
- 1972-01-01
- DOI
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- 10.1063/1.1676857
- 公開者
- AIP Publishing
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説明
<jats:p>Chemiluminescence from a beam of Group IIa metals traversing a scattering chamber filled with NO2 or N2O gas has been studied as a function of wavelength and pressure. The Ba+NO 2 and the Ba, Sr, and Ca + N 2O chemiluminescent reactions are first order in both reactants while Ca + NO 2 and Sr+NO 2 are quadratic in the NO2 pressure. Cross sections for beam attenuation are about 90–170 Å2 for reactions with NO2 (consistent with an electron-jump model), while those for N2O are 15–30 Å2. For the Ba+NO 2 reaction, the chemiluminescence has been assigned to the BaO A 1Σ−X 1Σ band system. From the resolved rotational structure it is concluded that with higher v′ excitation, the J′ distribution is characterized by a lower rotational temperature. A lower bound of 131.5 kcal/mole is placed on D 0 °(BaO). For certain reactions the chemiluminescence is weakly polarized. A model involving the partitioning of angular momentum between the rotation and recoil angular momenta of the products is proposed to account for the degree of polarization of the chemiluminescence.</jats:p>
収録刊行物
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- The Journal of Chemical Physics
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The Journal of Chemical Physics 56 (1), 263-274, 1972-01-01
AIP Publishing