http://qiserver.ugr.es/cod/1522504.cif
http://qiserver.ugr.es/cod/1522505.cif
http://qiserver.ugr.es/cod/1523542.cif
http://qiserver.ugr.es/cod/1525037.cif
http://qiserver.ugr.es/cod/1538115.cif