4830-57-3Relevant academic research and scientific papers
Synthesis, structure and valence-trapping vs. detrapping for new trinuclear iron pentafluoro benzoate complexes: Possible recognition of organic molecules by 57Fe Moessbauer spectroscopy
Onaka, Satoru,Sakai, Yoichi,Ozeki, Tomoji,Nakamoto, Tadahiro,Kobayashi, Yusuke,Takahashi, Masashi,Ogiso, Ryo,Takayama, Tsutomu,Shiotsuka, Michito
, p. 6711 - 6719 (2014)
New mixed-valence trinuclear iron pentafluorobenzoate complexes were synthesized. Their valence-detrapping and/or valence-trapping phenomena were studied by 57Fe Moessbauer spectroscopy and X-ray crystallography. For [Fe3O(C6F5CO 2)6(py)3]·CH2Cl2 (1), a valence-trapped state was observed at low temperatures, while the valence-detrapped state was observed at room temperature. Removal of CH 2Cl2 from 1 gives the de-solvated [Fe3O(C 6F5CO2)6(py)3] (2) where the valence was trapped at room temperature. The CH2Cl 2-free 2 can reversibly absorb and desorb CH3CN; the process was followed by 57Fe Moessbauer spectroscopy by monitoring valence-trapping and valence-detrapping phenomena. Organic molecules such as benzene, toluene, ethylbenzene, cumene, and xylene are also trapped by 2 and affect the iron valence states. However, small molecules such as H 2O and CO2 do not affect the valence-trapped state of 2. Three xylene isomers trapped within the nano-void of 2 were distinguished by 57Fe Moessbauer spectroscopy at room temperature. This journal is the Partner Organisations 2014.
