[EN] TRIANIONIC PINCER LIGANDS, A CR(III)/CR(V) CATALYTIC SYSTEM AND ITS USE FOR CATALYTIC AEROBIC OXIDATION OF ORGANIC SUBSTRATES [FR] LIGANDS PINCEURS TRIANIONIQUES, SYSTÈME CATALYTIQUE CR(III)/CR(V) ET SON UTILISATION POUR L'OXYDATION CATALYTIQUE EN MILIEU AÉROBIE DE SUBSTRATS ORGANIQUES
[EN] TRIANIONIC PINCER LIGANDS, A CR(III)/CR(V) CATALYTIC SYSTEM AND ITS USE FOR CATALYTIC AEROBIC OXIDATION OF ORGANIC SUBSTRATES [FR] LIGANDS PINCEURS TRIANIONIQUES, SYSTÈME CATALYTIQUE CR(III)/CR(V) ET SON UTILISATION POUR L'OXYDATION CATALYTIQUE EN MILIEU AÉROBIE DE SUBSTRATS ORGANIQUES
Autocatalytic O<sub>2</sub> Cleavage by an OCO<sup>3–</sup> Trianionic Pincer Cr<sup>III</sup> Complex: Isolation and Characterization of the Autocatalytic Intermediate [Cr<sup>IV</sup>]<sub>2</sub>(μ-O) Dimer
作者:Matthew E. O’Reilly、Trevor J. Del Castillo、Joseph M. Falkowski、Vasanth Ramachandran、Mekhala Pati、Marie C. Correia、Khalil A. Abboud、Naresh S. Dalal、David E. Richardson、Adam S. Veige
DOI:10.1021/ja2050474
日期:2011.8.31
molecular stucture of 3 was determined using single-crystal X-ray crystallography methods. Variable (9.5, 35, and 240 GHz) frequency electron paramagnetic resonance spectroscopy supports the assignment of complex 3 as a Cr(IV)-O-Cr(IV) dimer, with a high (S = 2) spin ground state, based on detailed computer simulations. Complex 3 is the first conclusively assigned example of a complex containing a Cr(IV)
O'Reilly, Matthew E.; Castillo, Trevor J. Del; Abboud, Khalil A., Dalton Transactions, 2012, vol. 41, p. 2237 - 2246
作者:O'Reilly, Matthew E.、Castillo, Trevor J. Del、Abboud, Khalil A.、Veige, Adam S.
DOI:——
日期:——
Catalytic Aerobic Oxidation by a Trianionic Pincer Cr<sup>III</sup>/Cr<sup>V</sup> Couple
作者:Matthew O’Reilly、Joseph M. Falkowski、Vasanth Ramachandran、Mekhala Pati、Khalil A. Abboud、Naresh S. Dalal、Thomas G. Gray、Adam S. Veige
DOI:10.1021/ic9019469
日期:2009.12.7
Aerobic oxidation that incorporates both 0 atoms into a substrate (PPh3) is achieved by employing a Cr-III/Cr-V O catalytic couple. A terphenyl trianionic pincer ligand stabilizes a high oxidation state Cr-V O complex, and both the reduced (Cr-III, IR/X-ray) and oxidized (Cr-V O, electron paramagnetic resonance/IR/X-ray) participants in the catalytic cycle are characterized.