Vibrational investigation of chemisorbed C60 by infrared-visible sum-frequency generation spectroscopy

Yves Caudano, André Peremans, Paul Thiry, Paul DUMAS, Abderrahmane TADJEDDINE

Research output: Contribution to journalArticle

Abstract

The C60/Ag(111) interface is studied by infrared reflection absorption (IRAS) and infrared-visible sum-frequency generation (SFG) spectroscopies for infrared frequencies between 1300 cm-1 and 1500 cm-1. Both IRAS and SFG spectroscopies reveal a vibrational mode located around 1445 cm-1. This mode is assigned to the Ag(2) "pentagonal pinch" mode of C60, which, although being Raman active and infrared inactive in the free molecule, becomes infrared active upon adsorption of the molecule.
Original languageEnglish
Pages (from-to)1071-1075
Number of pages5
JournalSurface Science
Volume377-379
Issue number1-3
Publication statusPublished - 1997

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