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151.
Doubly differential cross sections, in energy and angle, are reported for the electron transfer reaction between potassium and nitrogen dioxide in a crossed beam apparatus at relative collision energies between 2.7 and 30.8 eV. The formation of NO?2 in its ground 1A1 and excited 3B1 state has been observed. Theoretical consideration of these processes indicates that bond bending during the collision has a stronger influence on ion-pair formation than bond stretching. At the lower collision energies most of the excess energy is converted into internal energy of NO?2. 相似文献
152.
H. Kimura 《Physics letters. A》1974,47(2):173-174
An expression for the free energy of nematic liquid crystals is given by taking account of the excluded volume effects as well as dispersion forces. The dependence of nematic order on concentration and/or shape of molecules is discussed. 相似文献
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Toshio Motojima Shun-Ichi Ikawa Masao Kimura 《Journal of Quantitative Spectroscopy & Radiative Transfer》1981,25(1):29-33
Infrared absorption intensities of the fundamental vibrations of liquid H2O have been obtained by measuring transmissions at two sample thicknesses (about 9 and 0.9 μ). The effect of multiple internal reflections on the observed absorptions is examined in terms of thin-film optics. It is shown that this simple method yields precise absorption intensities, without corrections for the effects of multiple internal reflections. The resulting intensities are 89.9 × 103 cm/mmol and 5.91 × 103 cm/mmol for the stretching and bending vibrations, respectively. The latter value was estimated after eliminating the absorption of intermolecular vibrations from the 1400–2400 cm-1 region by means of computer simulation. 相似文献
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158.
K. Kimura Y. Achiba M. Morishita T. Yamazaki 《Journal of Electron Spectroscopy and Related Phenomena》1979,15(1):269-274
A new method for determining absolute photoionization cross sections for gaseous compounds is proposed. In this method a mixture of a sample and a standard gas (N2) is used in photoelectron intensity measurements so that the relative intensity of the component is obtained with respect to N2 The relative photoelectron band area is converted to the absolute photoionization cross section on the basis of the absolute cross-section data of N2 recently reported by Samson et al. This method has been applied to various aliphatic compounds to study the effect of alkyl substitution on photoionization cross sections of O- and N-nonbonding electrons for 584-Å radiation. 相似文献
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