http://qiserver.ugr.es/cod/2311096.cif
http://qiserver.ugr.es/cod/2311097.cif
http://qiserver.ugr.es/cod/2311098.cif
http://qiserver.ugr.es/cod/2311099.cif
http://qiserver.ugr.es/cod/2311100.cif