Electron Binding Energies of Hydrated H3O+and OH-:  Photoelectron Spectroscopy of Aqueous Acid and Base Solutions Combined with Electronic Structure Calculations

2006 ◽  
Vol 128 (12) ◽  
pp. 3864-3865 ◽  
Author(s):  
Bernd Winter ◽  
Manfred Faubel ◽  
Ingolf V. Hertel ◽  
Christian Pettenkofer ◽  
Stephen E. Bradforth ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Photoelectron Spectroscopy ◽  
Electronic Structure Calculations ◽  
Binding Energies ◽  
Aqueous Acid ◽  
Acid And Base ◽  
Structure Calculations ◽  
Electron Binding Energies ◽  
Electron Binding

scholarly journals Electronic Spectroscopy of Isolated DNA Polyanions

2018 ◽  
Author(s):  
Steven Daly ◽  
Massimiliano Porrini ◽  
Frédéric Rosu ◽  
Valerie Gabelica
Keyword(s):  
Gas Phase ◽  
Absorption Spectra ◽  
Ion Mobility ◽  
Photoelectron Spectroscopy ◽  
Binding Energies ◽  
Action Spectroscopy ◽  
Action Spectra ◽  
Vis Spectroscopy ◽  
Electron Binding Energies ◽  
Electron Binding

In solution, UV-vis spectroscopy is often used to investigate structural changes in biomolecules (i.e., nucleic acids), owing to changes in the environment of their chromophores (i.e., the nucleobases). Here we address whether action spectroscopy could achieve the same for gas-phase ions, while taking the advantage of additional mass spectrometry and ion mobility separation of complex mixtures. We therefore systematically studied the action spectroscopy of homo-base 6-mer DNA strands (dG6, dA6, dC6, dT6), and discuss the results in light of gas-phase structures validated by ion mobility spectrometry and infrared ion spectroscopy, and in light of electron binding energies measured by photoelectron spectroscopy, and calculated electronic photo-absorption spectra. When UV photons interact with oligonucleotide polyanions, two main actions may take place: (1) fragmentation and (2) electron detachment. The action spectra reconstructed from fragmentation follow the absorption spectra well, and result from multiple cycles of absorption and internal conversion. The action spectra reconstructed from the electron photodetachment (EPD) efficiency reveal interesting phenomena: EPD depends on the charge state in a manner depending on electron binding energies, and is particularly efficient for purines but not pyrimidines. EPD thus reflects not only absorption, but also particular relaxation pathways of the electronic excited states. As these pathways lead to photo-oxidation, their investigation on model gas-phase systems may prove useful to elucidate mechanisms of photo-oxidative damages, which are linked to mutations and cancers.

Photoelectron spectroscopy of aqueous solutions: Streaming potentials of NaX (X = Cl, Br, and I) solutions and electron binding energies of liquid water and X−

2014 ◽  
Vol 140 (17) ◽  
pp. 174506 ◽  
Author(s):  
Naoya Kurahashi ◽  
Shutaro Karashima ◽  
Ying Tang ◽  
Takuya Horio ◽  
Bumaliya Abulimiti ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Liquid Water ◽  
Photoelectron Spectroscopy ◽  
Binding Energies ◽  
Streaming Potentials ◽  
Electron Binding Energies ◽  
Electron Binding

Electronic Structure of ScC6H6-and ScC6H6:  Geometries, Electron Binding Energies, and Dyson Orbitals†

2004 ◽  
Vol 108 (15) ◽  
pp. 2988-2992 ◽  
Author(s):  
Srikanth Kambalapalli ◽  
J. V. Ortiz
Keyword(s):  
Electronic Structure ◽  
Binding Energies ◽  
Electron Binding Energies ◽  
Electron Binding

scholarly journals Photoelectron Spectroscopy and Electronic Structure Calculations of d1Vanadocene Compounds with Chelated Dithiolate Ligands:  Implications for Pyranopterin Mo/W Enzymes

2007 ◽  
Vol 46 (25) ◽  
pp. 10639-10646 ◽  
Author(s):  
Matthew A. Cranswick ◽  
Alice Dawson ◽  
J. Jon A. Cooney ◽  
Nadine E. Gruhn ◽  
Dennis L. Lichtenberger ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Photoelectron Spectroscopy ◽  
Electronic Structure Calculations ◽  
Structure Calculations

Negative electron binding energies observed in a triply charged anion: Photoelectron spectroscopy of 1-hydroxy-3,6,8-pyrene-trisulfonate

2008 ◽  
Vol 128 (9) ◽  
pp. 091102 ◽  
Author(s):  
Jie Yang ◽  
Xiao-Peng Xing ◽  
Xue-Bin Wang ◽  
Lai-Sheng Wang ◽  
Alina P. Sergeeva ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Binding Energies ◽  
Anion Photoelectron Spectroscopy ◽  
Electron Binding Energies ◽  
Electron Binding
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