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Interpnictogen Cations: Exploring New Vistas in Coordination Chemistry
Author(s) -
Robertson Alasdair P. M.,
Gray Paul A.,
Burford Neil
Publication year - 2014
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.201307658
Subject(s) - pnictogen , lewis acids and bases , chemistry , cationic polymerization , frustrated lewis pair , coordination complex , lone pair , block (permutation group theory) , acceptor , electron acceptor , transition metal , stereochemistry , organic chemistry , metal , catalysis , molecule , physics , superconductivity , geometry , mathematics , quantum mechanics , condensed matter physics
Pnictine derivatives can behave as both 2e − donors (Lewis bases) and 2e − acceptors (Lewis acids). As prototypical ligands in the coordination chemistry of transition metals, amines and phosphines also form complexes with p‐block Lewis acids, including a variety of pnictogen‐centered acceptors. The inherent Lewis acidity of pnictogen centers can be enhanced by the introduction of a cationic charge, and this feature has been exploited in recent years in the development of compounds resulting from coordinate Pn–Pn and Pn–Pn′ interactions. These compounds offer the unusual opportunity for homoatomic coordinate bonding and the development of complexes that possess a lone pair of electrons at the acceptor center. This Review presents new directions in the systematic extension of coordination chemistry from the transition series into the p‐block.