Abstract
IT has been established that copper(II) will adopt an approximately tetrahedral environment under certain circumstances but evidence on the exact geometry of this configuration is still meagre. That which is available, with two possible exceptions1,2, shows a stereochemistry which is more nearly planar than tetrahedral3. For instance, in 2,2′-biphenylbis-(2-iminomethylenephenolato) copper(II), where copper is complexed by a tetradentate molecule with donor atoms which are naturally tetrahedrally disposed, the ligand is considerably distorted and the expected 90° angle between the two planes containing the salicylaldimine groups is reduced to 43°.
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CHEESEMAN, T., HALL, D. & WATERS, T. Stereochemistry of Copper in Bis(N-t-butylsalicylaldiminato)copper(II). Nature 205, 494–495 (1965). https://doi.org/10.1038/205494b0
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DOI: https://doi.org/10.1038/205494b0
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