O2– - to - F– substitution on the quasi-two-dimensional quantum antiferromagnet (CuCl)LaNb2O7

Year: 2011 DOI: 10.1088/1742-6596/320/1/012036

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Cédric Tassel, Yoji Kobayashi, Shingo Mitsuoka, Fumitaka Takeiri, Yoshitami Ajiro, HIroshi Kageyama.   Journal of Physics: Conference Series, 2011, 320, 012036/1-6.


We present the preparation of the electron-doped quasi-two dimensional quantum antiferromagnet (CuCl)LaNb2O7by two step-wise topochemical reactions. The first step involves a reductive fluorination of the insulating layered perovskite RbLaNb2O7 using polytetrafluoroethylene that allows electric conduction in the perovskite blocks. The product RbLaNb2O6F was then ion-exchanged with copper dichloride to yield (CuCl)LaNb2O6F. The synchrotron x-ray diffraction study indicates that the structure of the final compound is different from that of the pure (CuCl)LaNb2O7.