Brian J. Hathaway

TL;DR: As a consequence of the non-spherical symmetry of the copper(II) ion, d9 configuration, and of the influence of the Jahn-Teller, and pseudo Jahn Teller effect on six-coordinate geometries, the stereochemistries of copper( II) ion are characterized by non-rigid geometry (fluxional behaviour), and ranges of distorted geometry (Plasticity Effect) The latter may be connected by a series of Structural Pathways, which may be characterised by an "Electronic Criterion of Stereochemistry

TL;DR: A review of copper(II) stereochemistry involving structural pathways is presented in this paper in an attempt to describe and rationalise these variable stereochemistries, and new interpretations linking the Jahn-Teller effect (JTE), vibronic coupling, structure correlation analysis, structural pathways and comparative X-ray crystallography are reported.

TL;DR: The crystal structure of the title compounds [Cu(tren)(NH3]][ClO4]2(1) and K[Cu(NH3)5][PF6]3(2) have been determined by X-ray diffraction methods using three-dimensional diffractometer data; the structures were solved by heavy-atom techniques and successive Fourier synthesis as discussed by the authors.

TL;DR: The crystal structure of [Ni3(bipyam-H)4Cl2] has been determined using X-ray diffractometer data; C415H355Cl2N12Ni3O075, monoclinic, space group C2/c, with a= 37525(7), b= 16237(3), c= 22550(6)A, β= 11012(2), Z= 12; 5778 measured and 5519 unique reflections gave a final R value of 0051.