http://qiserver.ugr.es/cod/1525866.cif
http://qiserver.ugr.es/cod/1526819.cif
http://qiserver.ugr.es/cod/1526821.cif
http://qiserver.ugr.es/cod/1526823.cif
http://qiserver.ugr.es/cod/1526825.cif