Variable photon energy photoelectron spectroscopy of tris-cyclopentadienyl lanthanides

Variable photon energy photoelectron spectroscopy of tris-cyclopentadienyl lanthanides.

The gas phase photoelectron (PE) spectra of LnCp3 (Cp = η-C5H5; Ln = Pr, Nd, Sm), measured with a wide range of photon energy, are reported. Resonances observed in the photon energy regions of 4d to 4f excitation enable identification of ion states resulting from 4f ionization. For all three compounds molecular ion states characteristic of both 4f(n) and 4f(n-1) configurations are observed (Pr,...

zero-kinetic energy photoelectron spectroscopy

where S(t) is the measurement, u f & is the final state, used as a ‘‘screen’’ onto which we project the dynamics, m(Q) is the coordinate dependent dipole coupling and uex(t)& is the evolving state that we wish to study. A range of techniques using different kinds of final states u f & have been implemented: time-resolved fluorescence spectroscopy; ionization/mass spectroscopy; stimulated emissi...

Zero kinetic energy photoelectron spectroscopy of triphenylene.

We report vibrational information of both the first electronically excited state and the ground cationic state of jet-cooled triphenylene via the techniques of resonantly enhanced multiphoton ionization (REMPI) and zero kinetic energy (ZEKE) photoelectron spectroscopy. The first excited electronic state S1 of the neutral molecule is of A1' symmetry and is therefore electric dipole forbidden in ...

Femtosecond energy- and angle-resolved photoelectron spectroscopy

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Rotationally resolved energy - dispersive photoelectron spectroscopy of H 2 O :