http://qiserver.ugr.es/cod/1510953.cif
http://qiserver.ugr.es/cod/1511073.cif
http://qiserver.ugr.es/cod/1511270.cif
http://qiserver.ugr.es/cod/1527091.cif
http://qiserver.ugr.es/cod/1528165.cif