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2.3 Basic structure types


                 Li Bi-type
                      3





                    Crystal data

                    Formula sum                                Li Bi
                                                                  3
                    Crystal system                             cubic

                    Space group                                F m -3 m (no. 225)

                    Unit cell dimensions                       a = 6.7080 Å

                    Z                                          4



                    Atomic coordinates                                                                                        Unit cell



                    Atom          Ox.           Wyck.          x             y              z

                    Bi1           +0            4a             0             0              0

                    Li1           +0            4b             1/2           1/2            1/2
                    Li2           +0            8c             1/4           1/4            1/4




                  S
                  Structural features:tructural features:
                  • all holes of CCP filled by Li

                  • not many examples of this structure type
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