Effects of Hydrogen Bonding on Tuning Photochemistry: Concerted Hydrogen‐Bond Strengthening and Weakening

Abstract

Shifting H bonds: Concerted hydrogen-bond strengthening and weakening in different excited states can tune energy gaps between low-lying electronic states and thus account for the photochemistry of thiocarbonyl chromophores in alcoholic solutions (see picture). Also, the relationship between electronic spectral shifts and the electronic excited-state hydrogen-bonding changes is clarified. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2267/2008/z800371_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.