http://qiserver.ugr.es/cod/1511148.cif
http://qiserver.ugr.es/cod/1523095.cif
http://qiserver.ugr.es/cod/1523121.cif
http://qiserver.ugr.es/cod/1527294.cif
http://qiserver.ugr.es/cod/1527614.cif