http://qiserver.ugr.es/cod/1509188.cif
http://qiserver.ugr.es/cod/1509369.cif
http://qiserver.ugr.es/cod/1536584.cif
http://qiserver.ugr.es/cod/1539798.cif
http://qiserver.ugr.es/cod/1540762.cif