Potassium nitride is an unstable chemical compound. Several syntheses were erroneously claimed in the 19th century, and by 1894 it was assumed that it did not exist.[2]
However, a synthesis of this compound was claimed in 2004. It is observed to have the anti-TiI 3 structure below 233 K (−40 °C; −40 °F), although a Li 3P-type structure should be more stable. Above this temperature, it converts to an orthorhombic phase. This compound was produced by the reaction of potassium metal and liquid nitrogen at 77 K (−196.2 °C; −321.1 °F) under vacuum:[1]
6K + N2 → 2K3N
This compound decomposes back into potassium and nitrogen at room temperature.
^ abFischer, D.; Cancarevic, Z.; Schön, J. C.; Jansen, M. (January 2004). "Zur Synthese und Struktur von K3N". Zeitschrift für anorganische und allgemeine Chemie (in German). 630 (1): 156–160. doi:10.1002/zaac.200300280.
^Chemical Society (Great Britain) (1894). Journal - Chemical Society, London. Chemical Society. pp. 512–.
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potassium, nitride, unstable, chemical, compound, several, syntheses, were, erroneously, claimed, 19th, century, 1894, assumed, that, exist, namesiupac, name, identifierscas, number, 29285, model, jsmol, interactive, imageinchi, inchi, 3key, tytmevsirlgale, uh. Potassium nitride is an unstable chemical compound Several syntheses were erroneously claimed in the 19th century and by 1894 it was assumed that it did not exist 2 Potassium nitride NamesIUPAC name Potassium nitrideIdentifiersCAS Number 29285 24 33D model JSmol Interactive imageInChI InChI 1S 3K N q3 1 3Key TYTMEVSIRLGALE UHFFFAOYSA NSMILES K K K N 3 PropertiesChemical formula K3NMolar mass 131 3016 g molAppearance Slightly yellow crystalline solidMelting point 263 K 10 C 14 F decomposes 1 Related compoundsOther cations Lithium nitrideSodium nitrideExcept where otherwise noted data are given for materials in their standard state at 25 C 77 F 100 kPa Infobox references However a synthesis of this compound was claimed in 2004 It is observed to have the anti TiI3 structure below 233 K 40 C 40 F although a Li3 P type structure should be more stable Above this temperature it converts to an orthorhombic phase This compound was produced by the reaction of potassium metal and liquid nitrogen at 77 K 196 2 C 321 1 F under vacuum 1 6K N2 2K3NThis compound decomposes back into potassium and nitrogen at room temperature This compound is unstable due to steric hindrance References Edit a b Fischer D Cancarevic Z Schon J C Jansen M January 2004 Zur Synthese und Struktur von K3N Zeitschrift fur anorganische und allgemeine Chemie in German 630 1 156 160 doi 10 1002 zaac 200300280 Chemical Society Great Britain 1894 Journal Chemical Society London Chemical Society pp 512 nbsp This article about chemical compounds is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Potassium nitride amp oldid 1166497389, wikipedia, wiki, book, books, library,
