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3,7‐Diazadibenzophosphole Oxide: A Phosphorus‐Bridged Viologen Analogue with Significantly Lowered Reduction Threshold
Author(s) -
Durben Stefan,
Baumgartner Thomas
Publication year - 2011
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201102453
Subject(s) - viologen , reduction (mathematics) , chemistry , phosphorus , bridge (graph theory) , combinatorial chemistry , computer science , information retrieval , photochemistry , mathematics , organic chemistry , medicine , geometry
Phosphorus pulls its weight : Installation of a phosphoryl group as central bridge in the 4,4′‐bipyridine scaffold introduces improved reduction responses that become even more pronounced in the corresponding phosphoryl‐bridged methylviologen (see picture). Importantly, the scaffold maintains the typical viologen optical response upon reversible reduction, however, at much lower potentials.