http://qiserver.ugr.es/cod/1000369.cif
http://qiserver.ugr.es/cod/1006074.cif
http://qiserver.ugr.es/cod/1006075.cif
http://qiserver.ugr.es/cod/6000662.cif
http://qiserver.ugr.es/cod/6000663.cif