Electronic "fingerprints" of new compounds: Contribution of the joint experimental UV-photoelectron spectroscopy (UV-PES) and theoretical approach [Empreintes électroniques de nouveaux systèmes: Apport du couplage spectroscopie photoélectronique à rayonnement UV/théorie]
Résumé
The determination of the electronic properties of new organic and organometallic systems allows a greater understanding of their reactivity. In order to have better insight onto these electronic properties, UV photoelectron spectroscopy (UV-PES) in the gas phase is an appropriate technique allowing the determination of the ionization potentials of molecules which are real electronic "fingerprints". A joint experimental and theoretical approach is a powerful tool for the accurate description of many compounds as the nature and energy of the molecular orbitals can be obtained. Thanks to this approach, the electronic properties of π-conjugated oligomeric systems have been determined. Reactive species such low coordinated phosphorus and arsenic compounds have been also characterized and their electronic structure described.