title: IR spectroscopy applied subsequent to a proton transfer reaction in the excited state of isolated 3-hydroxyflavone and 2-(2-naphthyl)-3-hydroxychromone.
abstract: IR/R2PI-spectroscopy has been applied to the electronic ground and electronically excited states of 3-hydroxyflavone (3-HF) and 2-(2-naphthyl)-3-hydroxychromone (2-NHC) in a supersonic jet yielding direct structural information on the educt and product of a proton transfer reaction. We show that IR spectra of the electronically excited states can be recorded subsequent to a photoinduced chemical reaction, in this case a proton transfer. In combination with DFT and TDDFT calculations structural assignments are performed.
authors.affiliation: TU Kaiserslautern, Fachbereich Chemie, Erwin-Schrödinger-Str. 52, 67663 Kaiserslautern & Heinrich-Heine Universität Düsseldorf, Institut für Physikalische Chemie I, Universitätsstrasse 26.33.O2, 40225, Düsseldorf.
authors.forename: K
authors.initials: K
authors.lastname: Bartl
authors.forename: A
authors.initials: A
authors.lastname: Funk
authors.forename: K
authors.initials: K
authors.lastname: Schwing
authors.forename: H
authors.initials: H
authors.lastname: Fricke
authors.forename: G
authors.initials: G
authors.lastname: Kock
authors.forename: H-D
authors.initials: HD
authors.lastname: Martin
authors.forename: M
authors.initials: M
authors.lastname: Gerhards
mesh_terms: D002867:Chromones / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry*; D015394:Molecular Structure; D009281:Naphthalenes / Q000737:chemistry*; D011522:Protons; D011789:Quantum Theory; D013055:Spectrophotometry, Infrared / Q000379:methods*; D013056:Spectrophotometry, Ultraviolet / Q000379:methods
chemical_list: C539794:2-(2-naphthyl)-3-hydroxychromone; D002867:Chromones; D005419:Flavonoids; D009281:Naphthalenes; D011522:Protons; C041477:3-hydroxyflavone