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The reaction of a solution of Sb2O3 in HBr in the presence of Br2 with a solution of 2,6-dibromopyridine (2,6-BrPy) in HBr affords supramolecular bromoantimonate polybromide (2,6-BrPy)3[SbBr6]-{(Br2)Br} · 2H2O (I). The structure of compound I is determined by X-ray structure analysis (СIF file CCDC no. 1962867). The energies of noncovalent Br···Br interactions in the solid state are estimated by quantum-chemical calculations.
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Bondarenko et al. (2020) studied this question.
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