2,2,6,6-Tetramethyl-4-oxopiperidinium Bis(pentafluorophenyl)phosphinate

The structure consists of centrosymmetric {(C₉H₁₈NO)⁺[(C₆F₅)₂PO₂]⁻}₂ units linked by N—H...O hydrogen bonds to form 12-membered [H—N—H...O—P—O...H—N—H...O—P—O...] rings.

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