The HeI excited electron spectrum of phosphine

Autor:	Leif Karlsson, S. H. Al-Shamma, R. Maripuu, Hans Ågren, Ji Ming Rong, Hans Veenhuizen, Ingrid Reineck, Kai Siegbahn, Wu Nian-Zu
Rok vydání:	1983
Předmět:	Vibrational energy Hydrogen Binding energy Biophysics chemistry.chemical_element Ionic bonding Condensed Matter Physics chemistry.chemical_compound chemistry Excited state Physical and Theoretical Chemistry Atomic physics Total energy Adiabatic process Molecular Biology Phosphine
Zdroj:	Molecular Physics. 48:1255-1267
ISSN:	1362-3028 0026-8976
Popis:	The HeI excited electron spectrum of phosphine (PH3) has been recorded with high resolution. The 2 A 1 band reveals an extensive vibrational progression in the v 2 bending mode with irregular structure at the low binding energy side due to hindered inversion. The existence of a barrier in the PH3 + 2 A 1 ionic state has been confirmed by vibrational energy level and Franck-Condon factor calculations based on CASSCF calculations of the total energy. The equilibrium angle between a P-H bond and the plane of the three hydrogen atoms in this ionic state was determined to be 15·5° and the barrier against inversion to be 160 meV. The adiabatic electron binding energy of this transition ([Xtilde] 2 A 1 ←X 1 A 1) was found to be 9·868±0·005 eV.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::19c51af2a48d98222ed73aa8dd7d7479 https://doi.org/10.1080/00268978300100901 Zobrazit plný text záznamu