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Reactions of Bromine Fluoride Dioxide, BrO₂ F, for the Generation of the Mixed-Valent Bromine Oxygen Cations Br₃ O₄ ⁺ and Br₃ O₆.

ABSTRACT: A reliable synthesis of unstable and highly reactive BrO₂ F is reported. This compound can be converted into BrO₂ ⁺ SbF₆ ^- , BrO₂ ⁺ AsF₆ ^- _, and BrO₂ ⁺ AsF₆ ^- ?2?BrO₂ F. The latter decomposes into mixed-valent Br₃ O₄ ?Br₂ ⁺ AsF₆ ^- with five-, three-, one-, and zero-valent bromine. BrO₂ ⁺ H(SO₃ CF₃ )₂ ^- is formed with HSO₃ CF₃ . Excess BrO₂ F yields mixed-valent Br₃ O₆ ⁺ OSO₃ CF₃ ^- with five- and three-valent bromine. Reactions of BrO₂ F and MoF₅ in SO₂ ClF or CH₂ ClF result in Cl₂ BrO₆ ⁺ Mo₃ O₃ F₁₃ ^- . The reaction of BrO₂ F with (CF₃ CO)₂ O and NO₂ produces O₂ Br-O-CO-CF₃ and the known NO₂ ⁺ Br(ONO₂ )₂ ^- . All of these compounds are thermodynamically unstable.

SUBMITTER: Seppelt K

PROVIDER: S-EPMC6973041 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature

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Reactions of Bromine Fluoride Dioxide, BrO2 F, for the Generation of the Mixed-Valent Bromine Oxygen Cations Br3 O4 + and Br3 O6.

Seppelt Konrad K

Angewandte Chemie (International ed. in English) 20191113 52

A reliable synthesis of unstable and highly reactive BrO2 F is reported. This compound can be converted into BrO2 + SbF6 - , BrO2 + AsF6 - , and BrO2 + AsF6 - ⋅2 BrO2 F. The latter decomposes into mixed-valent Br3 O4 ⋅Br2 + AsF6 - with five-, three-, one-, and zero-val ...[more]

PMID: 31622009

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