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The radiofluorination of diaryliodonium salts is of value for producing radiotracers for positron emission tomography. We report crystal structures for two diaryliodonium fluorides. Whereas diphenyliodonium fluoride (1 a) exists as a tetramer bridged by four fluoride ions, 2‐methylphenyl(phenyl)iodonium fluoride (2 a) forms a fluoride‐bridged dimer that is further halogen bonded to two other monomers...
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