http://qiserver.ugr.es/cod/1508985.cif
http://qiserver.ugr.es/cod/1522986.cif
http://qiserver.ugr.es/cod/1522987.cif
http://qiserver.ugr.es/cod/1522988.cif
http://qiserver.ugr.es/cod/1522989.cif