http://qiserver.ugr.es/cod/1525685.cif
http://qiserver.ugr.es/cod/1527032.cif
http://qiserver.ugr.es/cod/1527033.cif
http://qiserver.ugr.es/cod/1527034.cif
http://qiserver.ugr.es/cod/1527035.cif