Siddhartha Banerjee, Sagnik Chakrabarti, Bailey S. Bouley, Amy J. Wahlmeier, Liviu M. Mirica
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引用次数: 0
Abstract
Palladium coordination complexes are invaluable catalysts in organometallic reactions, facilitating a plethora of synthetically useful organic transformations that include CH functionalization and CC/Cheteroatom bond formation reactions. The proposed mechanisms for such reactions usually invoke two-electron pathways involving diamagnetic Pd0, PdII, and PdIV intermediates. However, recent research has focused on the viability of paramagnetic Pd species with +1 and +3 oxidation states as plausible intermediates. The past two decades have seen a renewed interest in the isolation and characterization of such transient species to obtain a better understanding of their structure and reactivity. This review focuses on the coordination chemistry of mononuclear PdI and PdIII compounds that have been isolated and characterized using spectroscopic techniques such as electron paramagnetic resonance (EPR), nuclear magnetic resonance (NMR), cyclic voltammetry (CV), electrospray ionization mass spectrometry (ESI-MS), single crystal X-ray crystallography (SC-XRD), and X-ray absorption spectroscopy (XAS) methods. It is expected that the knowledge gained from studying the electronic structure and spectroscopic properties of these compounds will be used to facilitate new modes of reactivity inaccessible to traditional Pd0/II/IV chemistry.
期刊介绍:
Coordination Chemistry Reviews offers rapid publication of review articles on current and significant topics in coordination chemistry, encompassing organometallic, supramolecular, theoretical, and bioinorganic chemistry. It also covers catalysis, materials chemistry, and metal-organic frameworks from a coordination chemistry perspective. Reviews summarize recent developments or discuss specific techniques, welcoming contributions from both established and emerging researchers.
The journal releases special issues on timely subjects, including those featuring contributions from specific regions or conferences. Occasional full-length book articles are also featured. Additionally, special volumes cover annual reviews of main group chemistry, transition metal group chemistry, and organometallic chemistry. These comprehensive reviews are vital resources for those engaged in coordination chemistry, further establishing Coordination Chemistry Reviews as a hub for insightful surveys in inorganic and physical inorganic chemistry.