Organocopper(III) Spiro Complexes: Synthesis, Structural Characterization, and Redox Transformation
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https://figshare.com/articles/dataset/Organocopper_III_Spiro_Complexes_Synthesis_Structural_Characterization_and_Redox_Transformation/5437363
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资源简介：
Reductive elimination
of Cu(III) intermediates is often proposed
as a key step in many copper-catalyzed or -mediated formation of C–C
or C–heteroatom bonds. However, there still lacks concrete
evidence on this key step, mainly because Cu(III) complexes are usually
too unstable to be isolated and structurally characterized. In this
work, novel organocopper(III) spiro complexes and their analogous
organocopper(I) spiro complexes were synthesized and structurally
characterized. Single-crystal X-ray structural analysis revealed that
the spiro Cu(III) atom adopted a distorted square-planar geometry
while its corresponding spiro Cu(I) atom was tetrahedrally coordinated.
A redox transformation between these spiro Cu(I) and Cu(III) complexes
was experimentally observed by reacting with reductants or oxidants,
respectively. As concrete evidence, the organocopper(III) spiro compounds
were found to form C–C bonds intramolecularly via reductive
elimination.
创建时间：
2017-09-25
