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Coordination Chemistry of Ir with Chelating Ligands Containing a Xanthine‐Derived, Protic N‐Heterocyclic Carbene (NHC) Moiety
Author(s) -
Bevilacqua Matteo,
Giuso Valerio,
Rancan Marzio,
Armelao Lidia,
Graiff Claudia,
Baratta Walter,
Di Marco Valerio,
Biffis Andrea
Publication year - 2022
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.202200484
Subject(s) - chemistry , carbene , deprotonation , protonation , moiety , reactivity (psychology) , ligand (biochemistry) , medicinal chemistry , iridium , coordination complex , chelation , stereochemistry , combinatorial chemistry , organic chemistry , metal , catalysis , ion , medicine , biochemistry , alternative medicine , receptor , pathology
A series of protic N‐heterocyclic carbene ligand precursors based on theophylline or adenine has been prepared, and the reactivity and coordination chemistry of these proligands towards iridium(III) centers has been investigated. Complex formation appears to be highly dependent on the proligand structure. In one case, a particularly stable complex is formed that enables fully reversible protonation/deprotonation of the coordinated NHC moiety. The acidity constant of the protonated complex was consequently determined.