http://qiserver.ugr.es/cod/9009594.cif
http://qiserver.ugr.es/cod/9009595.cif
http://qiserver.ugr.es/cod/9009596.cif
http://qiserver.ugr.es/cod/9009597.cif
http://qiserver.ugr.es/cod/9009598.cif