We report the anion photoelectron spectrum of I2- taken at 5.826 eV detachment energy using velocity mapped imaging. The photoelectron spectrum exhibits bands resulting from transitions to the bound regions of the X 1Sigmag+(0g+), A' 3Piu(2u), A 3Piu(1u), and B 3Piu(0u+) electronic states as well as bands resulting from transitions to the repulsive regions of several I2 electronic states: the B...

Interpretation of x-ray absorption near-edge structure (XANES) experiments is often done via analyzing the role of particular atoms in the formation of specific peaks in the calculated spectrum. Typically, this is achieved by calculating the spectrum for a series of trial structures where various atoms are moved and/or removed. A more quantitative approach is presented here, based on comparing ...

x-ray photoelectron and electron energy loss spectroscopic (xps-eels) studies reveal that the following species are present when a mixture of co2 and water vapour is exposed to the clean mg(100) surface at 110k: co3(a), c(a) ch(a), oh(a). the reactive chemisorptions of co2 and h2o vapour coadsorbed on a mg surface leads to the formation of ch bond. increasing the temperature to 400 k shows the ...

We report photoelectron imaging spectra of CuH and CuH 2 and their deuterated analogs. The CuH photoelectron spectrum exhibits transitions to the ground (X R) and lowest excited triplet (a R) and singlet (A R) states, with EA(CuH) 0.444(6) eV. The photoelectron spectrum of linear X Rg HCuH is dominated by a transition to the linear excited A Rg state with a 2.853 eV binding energy. It is accomp...

We have theoretically studied the effect of dissociative autoionization on the photoelectron energy spectrum in (1+2)-photon above threshold ionization (ATI) of H2 molecules. We have considered excitation from the ground XΣg (v = 0, j) state to the doubly excited autoionizing states of Σu and Πu symmetry, via the intermediate resonantBΣu (v = 5, j) states. We have shown that the photoelectron e...

We report new 351 nm negative ion photoelectron spectra of CCl(2)(-), CBr(2)(-), and CI(2)(-). This study was undertaken in an attempt to understand the major discrepancy between dihalocarbene (CX(2), X = Cl, Br, I) singlet-triplet splittings reported by our laboratory (R. L. Schwartz, G. E. Davico, T. M. Ramond, W. C. Lineberger, J. Phys. Chem. A., 1999, 103, 8213) and new theoretical values. ...

A photoelectron spectroscopy study of the anionic model chromophore of the green fluorescent protein is presented. From the photoelectron spectra taken at 3.496 eV, 4.62 eV, and 6.15 eV the vertical and adiabatic detachment energies are determined to be 2.8 ± 0.1 eV and 2.6 ± 0.2 eV, respectively. The vertical detachment energy is higher than the S1← S0 absorption maximum (2.57 eV) and indicate...