http://qiserver.ugr.es/cod/1007104.cif
http://qiserver.ugr.es/cod/1007105.cif
http://qiserver.ugr.es/cod/1008870.cif
http://qiserver.ugr.es/cod/1008871.cif
http://qiserver.ugr.es/cod/9012485.cif