www.sciencemag.org/cgi/content/full/1180060/DC1 Supporting Online Material for Real-Time Observation of Carbonic Acid Formation in Aqueous Solution Katrin Adamczyk, Mirabelle Prémont-Schwarz, Dina Pines, Ehud Pines,* Erik T. J. Nibbering* *To whom correspondence should be addressed. E-mail: epines@bgu.ac.il (E.P.); nibberin@mbi-berlin.de (E.T.J.N.) Published 12 November 2009 on Science Express DOI: 10.1126/science.1180060 This PDF file includes: SOM Text Figs. S1 to S5 Table S1 References