Hulvey Zeric, Wragg David S, Lin Zhuojia, Morris Russell E, Cheetham Anthony K
Materials Research Laboratory, University of California, Santa Barbara, CA 93106-5121, USA.
Dalton Trans. 2009 Feb 21(7):1131-5. doi: 10.1039/b817542j. Epub 2009 Jan 8.
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[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[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.
