http://qiserver.ugr.es/cod/1524549.cif
http://qiserver.ugr.es/cod/1536111.cif
http://qiserver.ugr.es/cod/1536118.cif
http://qiserver.ugr.es/cod/9017379.cif
http://qiserver.ugr.es/cod/9017380.cif
http://qiserver.ugr.es/cod/9017381.cif
http://qiserver.ugr.es/cod/9017382.cif