Ionothermal synthesis of inorganic-organic hybrid materials containing perfluorinated aliphatic dicarboxylate ligands.

Two new hybrid inorganic-organic frameworks containing perfluorinated dicarboxylate ligands have been synthesized ionothermally from a mixture of 1-ethyl-3-methylimidazolium bromide (emim-Br), and triflimide (emim-Tf(2)N). The cobalt(ii) tetrafluorosuccinate, [emim](2)[Co(H(2)O)(2)(O(2)CCF(2)CF(2)CO(2))(2)] (), is a two-dimensional coordination polymer containing anionic framework layers separated by emim cations. When hexafluoroglutaric acid is used in similar reactions, [emim](2)[Co(3)(O(2)CCF(2)CF(2)CF(2)CO(2))(4)(H(2)O)(4)] () forms. Like , this phase contains anionic layers of cobalt and the fluorinated carboxylate separated by emim cations. These new phases represent the first examples of ionothermally synthesized materials using perfluorinated aliphatic carboxylates.

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