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    The thermodynamic properties of rhenium on ITS-90
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    Attempts to prepare rhenium hexachloride by the method described by Colton (2) have been unsuccessful. The products of the reaction were always impure rhenium oxotetrachloride and rhenium pentachloride. A compound of rhenium(VI), ReOCl 4 OPCl 3 , is shown to have a structure analogous to that of rhenium(V) ions [ReOX 4 .L] − in which the ligands are in a pseudooctahedral arrangement with L trans to the oxo-group (3). Reactions of ReOCl 4 and ReOCl 4 -OPCl 3 with pyridine and 2,2′-dipyridyl are described, and a scheme is proposed for the reactions of the products. Two stable complexes of perrhenyl chloride with the above amines have been obtained.
    Perrhenate
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    Conclusive evidence has been obtained to show that nickel may be electro-deposited to form a single crystal hexagonal structure, provided that correct bath conditions and suitable substrates are used. The measured lattice spacings of hexagonal close-packed nickel, a = (2·50 ± 0·01) Å, c = (3·98 ± 0·06) Å, agree well with the values expected. Tentative measurements of the magnetic anisotropy constants K 1 and K 2 have also been made and for films 500 Å thick have been shown to be respectively.
    Lattice constant
    Hexagonal Lattice
    Lattice (music)
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    This chapter contains sections titled: Re Facts about Rhenium Discovery Where Should Elements 43 and 75 Be Looked For? The River Rhein but not the Region Masurien A Worldwide Search for Rhenium High Concentrations of Rhenium are Unexpectedly Found at Home! Rhenium Sources in Modern Times Modern Techniques for Manufacturing Rhenium Uses of Rhenium The Biological Role of Rhenium
    We have designed and prepared a series of rhenium complexes with 4,4′-bipyridyl as an electron-accepting unit. Electrochemical studies revealed that oxidation and reduction of these complexes occurred on the rhenium center and the 4,4′-bipyridyl skeleton, respectively. The redox potentials of the rhenium complexes are controllable by tuning the substituents on the 4,4′-bipyridyl skeleton and the coordinating groups to the rhenium center. We have also examined the reactivity of the rhenium complexes in electrochemical and photochemical CO2 reduction.
    Reactivity
    Center (category theory)