The fluoro(hydrocyano)krypton(II) cation [HCN–Kr–F]+; the first example of a krypton–nitrogen bond

Abstract

The first example of krypton bonded to an element other than fluorine has been provided by the synthesis of the novel [HCN–Kr–F]⁺ cation, prepared as its AsF₆^– salt by low-temperature reaction of HCNH⁺AsF₆^– with KrF₂ in HF or BrF₅ as solvent, and characterized by low-temperature Raman spectroscopy and ¹H, ¹³C, ¹⁵N, and ¹⁹F n.m.r. spectroscopy.