http://qiserver.ugr.es/cod/1001783.cif
http://qiserver.ugr.es/cod/1529987.cif
http://qiserver.ugr.es/cod/1530550.cif
http://qiserver.ugr.es/cod/9009713.cif
http://qiserver.ugr.es/cod/9012087.cif