Rotationally resolved photoelectron spectroscopy of n-H/sub 2/, p-H/sub 2/, HD, and D/sub 2/

摘要: The 584 A photoelectron spectra of n-H/sub 2/, p-H/sub HD, and D/sub 2/ were recorded at a resolution 11 meV FWHM using supersonic molecular beam source. Spectra taken several stagnation temperatures pressures in order to vary the rotational population distribution with corresponding variation relative intensities transitions. Many Q-branch components resolved for first time. ..delta..G(v+1/2) B/sub v/ values measured all observed vibrational states H/sup +//sub HD/sup +/, D/sup used determined ionic constants: ..omega../sub e/, e/x/sub e/y/sub e/z/sub ..cap alpha../sub e/. results represent substantial improvement over previous experimental determinations found be consistent available theoretical rotation-vibration energy levels. measurement intensity photoelectrons as function yielded photoionization cross sections which good agreement calculated by O'Niel Reinhardt.