http://qiserver.ugr.es/cod/1534202.cif
http://qiserver.ugr.es/cod/1534203.cif
http://qiserver.ugr.es/cod/1541436.cif
http://qiserver.ugr.es/cod/1541438.cif
http://qiserver.ugr.es/cod/1541440.cif
http://qiserver.ugr.es/cod/1541441.cif