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Effects of Hydrogen Bonding on Tuning Photochemistry: Concerted Hydrogen‐Bond Strengthening and Weakening
Author(s) -
Zhao GuangJiu,
Han KeLi
Publication year - 2008
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200800371
Subject(s) - excited state , hydrogen bond , chemistry , chromophore , photochemistry , hydrogen , chemical physics , photodissociation , electronic structure , computational chemistry , atomic physics , molecule , physics , organic chemistry
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.