Fundamental processes of radiation damage of benzene solid studied by Auger electron photoion coincidence spectroscopy

Inner Shell Excitation Spectroscopy of Biphenyl and Substituted Biphenyls: Probing Ring−Ring Delocalization

“…This is interpreted as the C 1s → 1π*(b 3 ) transition, which has been identified in the torsion angle dependent calculations as the C 1s → π* delocal feature specific to the ring−ring π-interaction. The upper level of the transition C 1s → 3s may also have some σ* CH character . The peak at 289.2 eV may also be assigned to C 1s → 2π* transitions, as in benzene, although the GSCF3 calculations give a larger term value for the 2π* MOs, as did earlier ab initio calculations for benzene .…”

“…The GSCF3 calculations (Tables 1 and S2) provide information about the principal character of the upper MO of each transition. This information was used to support the spectral 44 The peak at 289.2 eV may also be assigned to C 1s f 2π* transitions, as in benzene, 28 although the GSCF3 calculations give a larger term value for the 2π* MOs, as did earlier ab initio calculations for benzene. 45 The peaks at 294 and 300 eV are assigned to C 1s f σ*(CdC)…”

Development of New Apparatus for Electron–Polar‐Angle‐Resolved‐Ion Coincidence Spectroscopy and Auger–Photoelectron Coincidence Spectroscopy

“…The performance, such as coincidence signal to background ratio and energy resolution, has been improved at every remodeling. EICO spectroscopy has now been widely applied to studies of ion desorption from condensed molecules such as H 2 O [8, [15][16][17][18][19][20][21], NH 3 [22][23][24], CH 3 CN [25][26][27], Si(CH 3 ) 4 [28], C 6 H 6 [29] and for molecules showing site-specific fragmentation [8,[30][31][32][33][34][35]. The EICO studies of condensed molecules have been described in detail in a previous review [9].…”

Construction and Evaluation of a Miniature Electron Ion Coincidence Analyzer Mounted on a Conflat Flange with an Outer Diameter of 114 mm

“…Recently, we have developed an analyzer that can be used for both EICO analysis and APECS. 8 EICO spectroscopy has been widely applied in studies of ion desorption from condensed molecules on surfaces such as H2O, 13,[15][16][17][18] NH3, 19 CH3CN, 20 C6H6, 21 Si(CH3)4, 22 SiF3CH2CH2Si(CH3)3, 23 CH3CF3, 24 and N2O, 25 We have developed a miniature electron ion coincidence (EICO) analyzer mounted on a conflat flange with an outer diameter of 114 mm. It consists of a cylindrical mirror analyzer (CMA), a time-of-flight ion mass spectrometer (TOF-MS), a commercially available linear motion feedthrough, and a tilt adjustment mechanism.…”