2026-09-23T02:49:39Zhttps://orbi.uliege.be/oai/request

oai:orbi.ulg.ac.be:2268/383052026-09-01T13:29:34Zcom_f00col_f03class_g01

doctoral thesis http://purl.org/coar/resource_type/c_db06 info:eu-repo/semantics/doctoralThesis open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess https://orbi.uliege.be/page/user-license La spectroscopie des complexes de transfert de charge peut contribuer à l'interprétation du premier potentiel d'ionisation du donneur (éthylenimine, oxyde d'éthylene, sulfure d'éthylene) The spectroscopy of charge transfer complexes can contribute to the interpretation of the first ionization potential of the donor (ethylenimine, ethylene oxide and ethylene sulfide) Locht, Robert D'Or, L. Momigny, J. 1971-04-23 44 https://orbi.uliege.be/handle/2268/38305 info:hdl:2268/38305 https://orbi.uliege.be/bitstream/2268/38305/1/LOCHT_1971_AnnThPhD.pdf fr Visible/UV spectroscopy Charge transfer Iodine Ethylenimine Ethylene Oxide Ethylene Sulfide Ionization Potential Physical, chemical, mathematical & earth Sciences Chemistry Physique, chimie, mathématiques & sciences de la terre Chimie The relationships between the ionization energy (IE) of a donor compound and the position of the UV photoabsorption band of the complex of this donor with iodine as an acceptor are carefully analyzed. Their specificity with respect to (i) the adiabatic and vertical IE and (ii) the nature of the ionized orbital (n or pi) is examined. This analysis allowed us to attempt to determine the nature of the molecular orbital (MO) involved in the ionization process of ethylenimine, ethylene oxide and ethylene sulfide. Very likely the first IE corresponds to the ionization of the non-bonding (n) orbital located on the N and O atoms. Owing to the closeness of the "n" and "pi" IE for sulfides, in the case of ethylene sulfide no conclusion could be drawn. ULiège - Université de Liège Laboratoire des Etats Ionisés.