http://qiserver.ugr.es/cod/1100098.cif
http://qiserver.ugr.es/cod/5000042.cif
http://qiserver.ugr.es/cod/9012812.cif
http://qiserver.ugr.es/cod/9014370.cif
http://qiserver.ugr.es/cod/9016066.cif
http://qiserver.ugr.es/cod/9017834.cif
http://qiserver.ugr.es/cod/9017835.cif