http://qiserver.ugr.es/cod/1530752.cif
http://qiserver.ugr.es/cod/1541957.cif
http://qiserver.ugr.es/cod/1541994.cif
http://qiserver.ugr.es/cod/1542026.cif
http://qiserver.ugr.es/cod/1542162.cif