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The determination of the threshold for photo‐ionization of solids and liquids by the Millikan condenser technique can be made more accurate by using two different wavelengths of light, both shorter than the threshold wavelength. Measurements made on graphite and magnesium phthalocyanine are in...
A relation between the potential of mean force at zero separation and the excess chemical potential is derived for ``hard'' molecules. Application to hard spheres shows that of the Percus—Yevick, Kirkwood, convolution, and Born—Green—Yvon integral equations, only the Kirkwood equation gives...
We show that when two configurations approach a limit in which they represent the same physical state, the energy obtained from a variational calculation using configuration interaction may approach a lower limit than that which results if either configuration is used alone.
A model is developed for one‐dimensional steady‐state diffusion‐limited transport of solid in the presence of several chemical equilibria. The assumption that all the binary diffusion coefficients may be considered equal enables the flow to be expressed very simply in terms of the diffusion...
The spin densities in the cyclohexadienyl free radical are calculated using valence‐bond and molecular‐orbital approximations. The theoretically obtained values are in reasonable agreement with the spin densities derived from the electron spin resonance spectrum of this radical in irradiated...
Single‐ and many‐configuration wave functions and their corresponding molecular energies are reported for the diatomic molecular ion He 2 ++ in the LCAO MO SCF approximation for a wide range of internuclear distances. A potential curve displaying a minimum at 0.71 Å and a maximum at about...
A technique has been developed which allows the determination of specific conductance in the bulk of a liquid, independent of electrode materials or electrode separation. By this method, the specific conductance of benzene saturated with air has been determined to be 1.1±0.1×10 —14 Ω —1 cm...
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