Tris(4-bromophenyl)ammoniumyl hexachloroantimonate
Trisammoniumyl hexachloroantimonate is the organic compound with the formula SbCl6. Commonly known as magic blue, it is the hexachloroantimonate salt of an amine radical cation. It is a blue solid that reacts with many solvents but is soluble in acetonitrile. The compound is a popular oxidizing agent in organic and organometallic chemistry, with a reduction potential of 0.67 V vs. ferrocene/ferrocenium or 0.70 V vs. ferrocene/ferrocenium.
The structure of the cation consists of a three-bladed propeller structure with a planar amine. It is nearly identical to the parent triphenylamine. The weakly coordinating anion is SbCl6−, which is octahedral.
