http://qiserver.ugr.es/cod/1001460.cif
http://qiserver.ugr.es/cod/1523291.cif
http://qiserver.ugr.es/cod/1523292.cif
http://qiserver.ugr.es/cod/1540950.cif
http://qiserver.ugr.es/cod/1540951.cif
http://qiserver.ugr.es/cod/1540952.cif