Author/Authors :
Patzer، نويسنده , , Alexander and Langer، نويسنده , , Judith and Knorke، نويسنده , , Harald and Neitsch، نويسنده , , Helge and Dopfer، نويسنده , , Otto and Miyazaki، نويسنده , , Mitsuhiko and Hattori، نويسنده , , Kaori and Takeda، نويسنده , , Akihiro and Ishiuchi، نويسنده , , Shun-Ichi and Fujii، نويسنده , , Masaaki، نويسنده ,
Abstract :
Resorcinol+–Arn cations (Rs+–Arn, n = 1,2) generated by resonant multiphoton ionization (REMPI) and electron ionization (EI) were assayed by their infrared (IR) photodissociation spectra in the OH stretch (νOH) range. Several isomers distinguished by their Ar ligand binding sites and their Rs+ isomeric cores are identified by characteristic ΔνOH complexation shifts. Neutral Rs–Arn complexes prefer intermolecular π-bonding of Ar to the aromatic ring, whereas cationic Rs+–Arn clusters show predominant H-bonding to the acidic OH groups. The REMPI-IR spectra of Rs+–Ar2 reveal νOH absorptions assigned to cold π-bound complexes and hot H-bound complexes. The latter are generated via ionization-induced intermolecular π → H isomerization.
