Platinocyanide
Platinocyanide, also known as tetracyanoplatinate (IUPAC), cyanoplatinate, or platinocyanate, is a polyatomic ion with the molecular formula [Pt(CN)4]2−. The name also applies to compounds containing this ion, which are salts of the hypothetical platinocyanic acid (sometimes platinocyanhydric acid).[1]
Barium platinocyanide, Ba[Pt(CN)4] is a phosphor and a scintillator. It fluoresces green in the presence of x-rays and gamma rays. It was important in the discovery of X-rays, and in the development of the fluoroscope.
One platinocyanide salt, Krogmann's salt (dipotassium tetracyanoplatinate bromide trihydrate), has unusually high electronic conductivity,[2] which - at room temperature- resembles metallic conductivity more than polaronic conductivity.[3]
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- ^ Miller, J. S. (January 1998), Zuckerman, J. J.; Atwood, J. D. (eds.), "Tetracyanoplatinates", Inorganic Reactions and Methods, vol. 14 (1 ed.), Wiley, pp. 101–102, doi:10.1002/9780470145296.ch86, ISBN 978-0-471-19201-5, retrieved 2025-10-31
- ^ Peterson, S. W. (January 1977). "The nature of the Pt chain distortion in the potassium-deficient krogmann salt, K 1.75 Pt(CN) 4 1.5H 2". Ferroelectrics. 16 (1): 145–145. doi:10.1080/00150197708237140. ISSN 0015-0193.
- ^ Zeller, Hans Rudolf (1973), Queisser, H. J. (ed.), "Electronic properties of one-dimensional solid state systems", Festkörperprobleme 13 (in German), vol. 13, Berlin, Heidelberg: Springer Berlin Heidelberg, pp. 31–58, doi:10.1007/bfb0108566, ISBN 978-3-528-08019-8, retrieved 2025-10-31