http://qiserver.ugr.es/cod/1008863.cif
http://qiserver.ugr.es/cod/1008864.cif
http://qiserver.ugr.es/cod/1008865.cif
http://qiserver.ugr.es/cod/1510794.cif
http://qiserver.ugr.es/cod/9013421.cif