http://qiserver.ugr.es/cod/2311101.cif
http://qiserver.ugr.es/cod/2311102.cif
http://qiserver.ugr.es/cod/2311103.cif
http://qiserver.ugr.es/cod/2311104.cif
http://qiserver.ugr.es/cod/2311105.cif
http://qiserver.ugr.es/cod/2311106.cif