http://qiserver.ugr.es/cod/1100439.cif
http://qiserver.ugr.es/cod/1100440.cif
http://qiserver.ugr.es/cod/1100441.cif
http://qiserver.ugr.es/cod/1100442.cif
http://qiserver.ugr.es/cod/1100443.cif