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Direct Visualization of a Mechanochemically Induced Molecular Rearrangement
Author(s) -
ArdilaFierro Karen J.,
Lukin Stipe,
Etter Martin,
Užarević Krunoslav,
Halasz Ivan,
Bolm Carsten,
Hernández José G.
Publication year - 2020
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201914921
Subject(s) - mechanochemistry , raman spectroscopy , ball mill , powder diffraction , synchrotron , nanotechnology , chemistry , in situ , materials science , benzil , crystallography , organic chemistry , catalysis , physics , optics , metallurgy
Recent progress in the field of mechanochemistry has expanded the discovery of mechanically induced chemical transformations to several areas of science. However, a general fundamental understanding of how mechanochemical reactions by ball milling occur has remained unreached. For this, we have now implemented in situ monitoring of a mechanochemically induced molecular rearrangement by synchrotron X‐ray powder diffraction, Raman spectroscopy, and real‐time temperature sensing. The results of this study demonstrate that molecular rearrangements can be accomplished in the solid state by ball milling and how in situ monitoring techniques enable the visualization of changes occurring at the exact instant of a molecular migration. The mechanochemical benzil–benzilic acid rearrangement is the focal point of the study.