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Dinitrogen as Double Lewis Acid: Structure and Bonding of Triphenylphosphinazine N 2 (PPh 3 ) 2
Author(s) -
Holzmann Nicole,
Dange Deepak,
Jones Cameron,
Frenking Gernot
Publication year - 2013
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.201206305
Subject(s) - exergonic reaction , chemistry , excited state , lewis acids and bases , dissociation (chemistry) , crystallography , phosphine , acceptor , solid state , stereochemistry , atomic physics , catalysis , organic chemistry , physics , condensed matter physics
Making Ns meet : Triphenylphosphinazine N 2 (PPh 3 ) 2 is a donor–acceptor complex between nitrogen in the highly excited 1 Γ g state and two anti‐periplanar coordinated phosphine ligands (see structure). Although the dissociation into N 2 +2 PPh 3 is calculated to be exergonic by 75 kcal mol −1 , the compound is kinetically very stable as a result of the very large Lewis acidity of N 2 in the excited 1 Γ g state.