Hydration-induced protomer switching in p-aminobenzoic acid studied by cold double ion trap infrared spectroscopy

• DOI: 10.1039/d2cp04497h
• Publication Date: 2022-12-06T14:53:10Z
• Authors: Kyota Akasaka; Keisuke Hirata; Fuad Haddad; Otto Dopfer; Shun-ichi Ishiuchi; Masaaki Fujii
• Keywords: para-aminobenzoic acid; spectrometry; PABAH+; gas-phase; synthesis; 500 Naturwissenschaften und Mathematik::540 Chemie::541 Physikalische Chemie; 02 engineering and technology; 0210 nano-technology; 01 natural sciences; 0104 chemical sciences

Infrared spectroscopy in a double cryogenic ion trap tandem mass spectromer reveals that the correct threshold number of water molecules to trigger the hydration-induced intracluster proton transfer in protonated p-aminobenzoic acid is indeed five.