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Experimental determination of the moments of the generalized oscillator strength distribution of HeThe complete dipole oscillator strength distribution for N 2 has ~ee~ cal.culated using , the multiple scattering model. From this, the moments of the dIstnbutIon Sip) and Lip) have been computed for -6 ~f.L ~ 2. The results are analyzed by decomposing the total moments according to the contributions from various subshells and also according to the contributions from various spectral ranges, e.g., discrete ~s ionizi~g excitations. Since many physical properties depend on these moments, thIS analysIs can pinpoint the spectral ranges with the greatest influence. Special attention is devoted to the distinctly molecular etTects on the dipole oscillator strength distribution and its moments, particularly for those channels atTected by shape resonances. The Rydberg series, for example, are significantly atTected. This analysis otTers an explanation for the weakness of certain dipole allowed Rydberg series and suggests a tentative new assignment for Worley's third series.
The reaction of norbornenone and morpholine without an acid catalyst results in formation of a tricycloenamine, a normal enamine, an enamine reduction product, and an amino ketone. The amino ketone is apparently formed via a homoenolate ion. Treatment of bicyclo[2.2.2] oct-5-en-2-one with morpholine and an acid catalyst gives the thermodynamic product, A'-phenylmorpholine, in refluxing xylene and the kinetic product, 2-Ar-morpholinobicyclo[2.2.2]octa-2,5-diene, at room temperature.
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