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Diferrocenophosphaborin: A Planar‐Chiral, Redox‐Active and Anion‐Responsive Ambiphilic Ligand
Author(s) -
Chen Jiawei,
Murillo Parra Didier A.,
Lalancette Roger A.,
Jäkle Frieder
Publication year - 2015
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201504922
Subject(s) - moiety , chemistry , lewis acids and bases , borane , redox , ligand (biochemistry) , stereochemistry , combinatorial chemistry , crystallography , inorganic chemistry , organic chemistry , catalysis , biochemistry , receptor
A new class of Janus‐like ambiphilic ligands is introduced. The rigid diferrocene backbone in heterocycles 4‐SnP and 4‐BP creates an unprecedented chiral environment as demonstrated by multinuclear NMR and single‐crystal X‐ray studies. In addition, the ligands are redox‐responsive and the Lewis acidic borane moiety in 4‐BP can be exploited to further tune the properties: a clear decrease in the CO stretching frequency of a Vaska‐type Rh I complex 5‐BP is observed upon addition of fluoride ions. Thus, the Lewis acid and Lewis base sites influence each other and their strength can be modulated by redox chemistry and anion binding.