http://qiserver.ugr.es/cod/1558798.cif
http://qiserver.ugr.es/cod/1558799.cif
http://qiserver.ugr.es/cod/1558800.cif
http://qiserver.ugr.es/cod/1558801.cif
http://qiserver.ugr.es/cod/1559275.cif