Spectroscopic Observation of Gas-Phase Carbonic Acid Isolated in Matrix

• Published in: Angewandte Chemie International Edition
• Main Authors: Bernard, Jürgen, Seidl, Markus, Kohl, Ingrid, Liedl, Klaus R., Mayer, Erwin, Gálvez, Óscar, Grothe, Hinrich, Loerting, Thomas
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley-VCH 2011
• Subjects: Carbonic acid; IR spectroscopy; Matrix isolation
• Online Access: http://hdl.handle.net/10261/32809; https://doi.org/10.1002/anie.201004729

Carbonic acid molecules were trapped from the gas phase in a solid noble-gas matrix at <10 K and studied by IR spectroscopy. The 2H and and 13C isotopologues were also examined. Gas-phase carbonic acid is thought to exist as a 1:10:1 mixture of two monomeric conformers and the cyclic dimer (H2CO3)2. This data is vital in the search for gas-phase carbonic acid in astrophysical environments. Peer reviewed