# SPECTRO-- AND MAGNETO-CHEMISTRY OF AU(II) AND W(V) COMPLEXES AND THEIR HOMOLOGUES

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 Title: SPECTRO-- AND MAGNETO-CHEMISTRY OF AU(II) AND W(V) COMPLEXES AND THEIR HOMOLOGUES Creators: Liehr, Andrew D. Issue Date: 1959 Abstract: If ionic spin-orbital forces are weak, electronic motion in inorganic complexes are governed primarily by the electrostatic coercions of the surrounding ligands, whilst the presence of feeble coulombic directives, but robust spin-orbit correlations, dictates electronic trajectories which are only slightly modified over those characteristic of the free ion. Electronic itineraries of both types have been exhaustively discussed, in the past thirty years, within the framework of the Bethe-Kramers-Van Vleck theory of crystalline fields. However, the rather more esoteric situation in which the spin-orbital and addend field potentials are of comparable magnitude does not seem to have received as thorough a consideration. In this report an account will be given of the optical and magnetic properties expected of $d^{n}$, $(n=1, 9)$, molecular systems, in several geometries, which exhibit equi-energetic spin-orbital and augend field interactions, and will be applied, where observational data is extant, to the transition metal complexes of the third and fourth group. An experimental prospectus is outlined in the hope that such will stimulate future research into this somewhat neglected domain. URI: http://hdl.handle.net/1811/7843 Other Identifiers: 1959-F-1