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Beck, Wolfgang; Fischer, Gerd; Swoboda, Peter (2017): Some Comments on Fulminic Acid (Knallsaure) and a Praise to Heinrich Wieland and his Work on Organic Derivatives of Nitrogen. In: Zeitschrift für Anorganische und Allgemeine Chemie, Vol. 643, No. 5: pp. 353-356
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The structure, vibrational spectrum, the polymerization and [3+2] cycoaddition reactions of fulminic acid are discussed. In the mass spectra of the solid deposit from gaseous fulminic acid (prepared from sodium fulminate and sulfuric acid) the mass of the adduct of HCNO with hydrogen cyanide was detected, which may be formed by Huisgen 1,3-dipolar cycloaddition. As examples for Heinrich Wieland's experimental mastership the polymerization and his syntheses of fulminic acid and of explosive dinitrosomethanide [HC(NO)(2)](-) are emphasized;the structure of the latter has recently been disclosed by X-ray structure determination.