http://qiserver.ugr.es/cod/1524838.cif
http://qiserver.ugr.es/cod/1541196.cif
http://qiserver.ugr.es/cod/9009254.cif
http://qiserver.ugr.es/cod/9009255.cif
http://qiserver.ugr.es/cod/9009256.cif
http://qiserver.ugr.es/cod/9014675.cif