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A Palladium(II) Peroxido Complex Supported by the Smallest Steric N‐Heterocyclic Carbene, I Me = 1,3‐Dimethylimidazole‐2‐ylidene, and Its Reactivity by Oxygen‐Atom Transfer
Author(s) -
Lee Eunsung,
Bae Dae Young,
Park Sungho,
Oliver Allen G.,
Kim Yonghwi,
Yandulov Dmitry V.
Publication year - 2016
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.201601019
Subject(s) - chemistry , steric effects , carbene , reactivity (psychology) , palladium , pyridine , ligand (biochemistry) , photochemistry , yield (engineering) , thermal decomposition , medicinal chemistry , stereochemistry , catalysis , organic chemistry , medicine , biochemistry , materials science , alternative medicine , receptor , pathology , metallurgy
Stabilized with an N‐heterocyclic carbene ligand of the smallest steric profile, Pd II (η 2 ‐O 2 )( I Me) 2 ( I Me = 1,3‐dimethylimidazole‐2‐ylidene) was synthesized by the direct addition of dioxygen to Pd 0 ( I Me) 2 . The peroxidopalladium complex with I Me, which was previously available only by computation, was characterized by IR spectroscopy and X‐ray crystallography. Moreover, its oxygen‐atom‐transfer reactivity was elucidated by studying its thermolysis in pyridine at 60 °C to yield 1,3‐dimethylimidazol‐2‐one ( I MeO) and its reaction with oxygen‐atom‐transfer acceptors such as PPh 3 and (Me 3 Si) 2 .