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Cupferron
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Cupferron : ウィキペディア英語版
Cupferron

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Cupferron, the ammonium salt of ''N''-nitroso-N-phenylhydroxylamine, is a common reagent for the complexation of metal ions. Its formula is
NH4(). The anion binds to metal cations through the two oxygen atoms, forming five-membered chelate rings.
Cupferron is prepared from phenylhydroxylamine and an NO+ source:
::C6H5NHOH + C4H9ONO + NH3 → NH4() + C4H9OH
==References==

*C. S. Marvel "(Cupferron )" ''Organic Syntheses'', Coll. Vol. 1, p. 177; Vol. 4, p. 19.
*D. Van der Helm, L. L. Merritt Jnr, R. Degeilh and C. H. MacGillavry "The crystal structure of iron cupferron Fe(O2N2C6H5)3" ''Acta Cryst.'' (1965). 18, 355–362
*Merck 13,2649; Beil. 16,IV,891


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