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Photodimerization of Cinnamic Acid in the Solid State: New Insights on Application of Atomic Force Microscopy
Author(s) -
Kaupp Gerd
Publication year - 1992
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199205921
Subject(s) - cinnamic acid , atomic force microscopy , solid state , chemistry , phase (matter) , chemical physics , microscopy , nanotechnology , crystallography , materials science , organic chemistry , physics , optics
The phase changes for the topochemical photodimerizations of cinnamic acid (see below) can literally be seen under the atomic force microscope. Completely unexpected are the surface reactions involving substantial material transport, observed for α‐ and β‐ trans ‐cinnamic acid. They call for reconsideration of the fundamentals of the topochemical principle.