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Inside Cover: Aromatic Charge Resonance Interaction Probed by Infrared Spectroscopy (Angew. Chem. Int. Ed. 11/2019)
Author(s) -
Chatterjee Kuntal,
Matsumoto Yoshiteru,
Dopfer Otto
Publication year - 2019
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201900404
Subject(s) - chemistry , infrared spectroscopy , resonance (particle physics) , intermolecular force , spectroscopy , infrared , cover (algebra) , charge (physics) , pyrrole , nuclear magnetic resonance spectroscopy , asymmetry , chemical physics , crystallography , computational chemistry , photochemistry , molecule , stereochemistry , atomic physics , organic chemistry , physics , mechanical engineering , quantum mechanics , optics , engineering
Charge resonance (CR) is a fundamental intermolecular force in π‐stacked structures of arenes. In the Communication by O. Dopfer and co‐workers on page 3351 ff., the properties of the CR were probed by IR spectroscopy and DFT calculations of prototypical pyrrole cluster cations. The N–H stretch frequency of pyrrole is sensitive to its partial positive charge. This generally applicable approach provides a precise experimental probe of the asymmetry in the charge distribution of heterodimers or solvated homodimers.