Study of five real cases :

  • Na2(COO)2
    Simple case, conventional X-ray data and direct methods

    With heavy atoms for testing the Patterson method, conventional X-ray data

    More complex than the two previous ones because Al3+ and F- are isoelectronic. Eleven independent sites should be found simultaneously by the direct methods

    Neutron diffraction

    Cimetidine C10H16N6S
    Synchrotron radiation