Intramolecular p-Stacking Interactions of Bridged Bis-p-Phenylenediamine Radical Cations and Diradical Dications: Charge-Transfer versus Spin-Coupling

A bridged mixed-valent compound with direct through-space interactions between the charge-bearing units in its singly charged paramagnetic and its doubly charged diamagnetic forms is isolated and characterized by X-ray crystallography and spectroscopy (see scheme). {pi}-Stacking interactions for the...

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Bibliographic Details
Published inAngewandte Chemie (International ed.) Vol. 50; no. 30
Main Authors Jalilov, A.S., Wu, Q., Nelsen, S.F., Guzei, I.A.
Format Journal Article
LanguageEnglish
Published United States 18.07.2011
Subjects
CATIONS
COULOMB FIELD
CRYSTALLOGRAPHY
functional nanomaterials
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
pi-pi interaction
RADICALS
SPECTROSCOPY
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Summary:A bridged mixed-valent compound with direct through-space interactions between the charge-bearing units in its singly charged paramagnetic and its doubly charged diamagnetic forms is isolated and characterized by X-ray crystallography and spectroscopy (see scheme). {pi}-Stacking interactions for the singlet diradical dication were more pronounced than for the doublet monocation, despite the Coulomb repulsion effect in the diradical dication.
Bibliography:DE-AC02-98CH10886
BNL-94731-2011-JA
DOE - OFFICE OF SCIENCE
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201102629