Strong oscillations in molecular valence photoemission intensities.

Journal article

Photoemission from the two outermost ionizations [highest occupied molecular orbitals (HOMO and HOMO-1)] of Mg(eta(5)-C(5)H(5))(2) has been studied with synchrotron radiation in the gas phase. Strong oscillations in the HOMO-1/HOMO ratio, qualitatively similar to those well-known for fullerenes, are found. Excellent agreement with the experimental ratio is provided by accurate cross section calculations both at the density-functional theory and time-dependent density-functional theory level, indicating that a many electron response has a minor role for this effect. A comparison with the calculated values for other metal sandwich compounds indicate that the presence of oscillations is a widespread phenomenon, and a potential source of interesting information on the structural and electronic properties of the target molecule.

Authors: Decleva, P; Fronzoni, G; Stener, M; de Simone, M; Coreno, M

• Publication status: Published
• Journal: Physical Review Letters
• Volume: 95
• Issue: 26
• Pages: 263401
• Publication date: 2005-12-01
• DOI: 10.1103/physrevlett.95.263401
• EISSN: 1079-7114
• ISSN: 0031-9007
• Language: English