http://qiserver.ugr.es/cod/1538514.cif
http://qiserver.ugr.es/cod/9009291.cif
http://qiserver.ugr.es/cod/9009292.cif
http://qiserver.ugr.es/cod/9009293.cif
http://qiserver.ugr.es/cod/9009294.cif
http://qiserver.ugr.es/cod/9009295.cif