Ambient Stable Trigonal Bipyramidal Copper(III) Complexes Equipped with an Exchangeable Axial Ligand
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https://figshare.com/articles/dataset/Ambient_Stable_Trigonal_Bipyramidal_Copper_III_Complexes_Equipped_with_an_Exchangeable_Axial_Ligand/2163097
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资源简介：
A stable trigonal bipyramidal copper(III)
complex, [PPN][Cu(TMSPS3)Cl] (1, wherein PPN
represents bis(triphenylphosphine)iminium), was synthesized from CuCl2/PPNCl via intramolecular copper(II) disproportionation. Under
ambient conditions, the axial chloride of 1 is exchangeable
in solution thus making 1 serve as an intermediate to
prepare trigonal bipyramidal copper(III) derivatives, e.g., [PPN][Cu(TMSPS3)(N3)] (2) and [Cu(TMSPS3)(DABCO)] (3). Diamagnetic complexes 1–3 were fully characterized by X-ray crystallography,
NMR, UV–vis, and Cu K-edge absorption spectroscopy. A series
of UV–vis titrations were performed to investigate the relative
ligand affinity toward the [Cu(TMSPS3)] moiety, verifying
the 1:1 binding equilibrium between various ligands. Compared to known
copper(III) compounds, Cu K-edge absorptions of 1–3 possess lower pre-edge energy and higher shakedown transition
energy, which, respectively, attribute to the electron donation from TMSPS33– ligand and their trigonal ligand
field.
创建时间：
2016-02-13
