http://qiserver.ugr.es/cod/1534637.cif
http://qiserver.ugr.es/cod/9012607.cif
http://qiserver.ugr.es/cod/9012608.cif
http://qiserver.ugr.es/cod/9012609.cif
http://qiserver.ugr.es/cod/9012610.cif