http://qiserver.ugr.es/cod/2310326.cif
http://qiserver.ugr.es/cod/2310327.cif
http://qiserver.ugr.es/cod/2310328.cif
http://qiserver.ugr.es/cod/2310329.cif
http://qiserver.ugr.es/cod/2310330.cif
http://qiserver.ugr.es/cod/2311061.cif