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Formation and Structure of the [(1,2‐C 6 H 4 P 2 Sb) 2 ] 4− Ion: Implications for an Extended Family of Isoelectronic Main‐Group Radicals
Author(s) -
García Felipe,
Less Robert J.,
Naseri Vesal,
McPartlin Mary,
Rawson Jeremy M.,
Wright Dominic S.
Publication year - 2007
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.200702603
Subject(s) - deprotonation , ion , crystallography , chemistry , ionic bonding , electron , physics , organic chemistry , nuclear physics
A fine pair : Quadruple deprotonation of 1,2‐(PH 2 ) 2 C 6 H 4 with Sb(NMe 2 ) 3 / n BuLi gives the 6π‐aromatic ion [1,2‐C 6 H 4 P 2 Sb] − , which is converted by one‐electron reduction into the radical [1,2‐C 6 H 4 P 2 Sb] .2− (see picture). DFT calculations reveal that dimerization of the radical is only favored if ionic interactions with cations are considered.