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Pushing the σ‐Donor Strength in Iridium Pincer Complexes: Bis(silylene) and Bis(germylene) Ligands Are Stronger Donors than Bis(phosphorus(III)) Ligands
Author(s) -
Brück Andreas,
Gallego Daniel,
Wang Wenyuan,
Irran Elisabeth,
Driess Matthias,
Hartwig John F.
Publication year - 2012
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.201205570
Subject(s) - iridium , pincer movement , silylene , chemistry , borylation , divalent , pincer ligand , catalysis , medicinal chemistry , stereochemistry , polymer chemistry , inorganic chemistry , crystallography , organic chemistry , silicon , alkyl , aryl
Breaking the donor limits : The remarkable coordination chemistry of ECHE (E=Si, Ge) ligands with Group 9 metals (Ir, Rh) and their application in catalytic CH borylation of arenes was investigated. The spectroscopic and structural features of the first [ECE] iridium complexes show the stronger σ‐donating properties of the divalent Si and Ge pincer ligands compared to analogous P III ‐based ligands.