http://qiserver.ugr.es/cod/2002117.cif
http://qiserver.ugr.es/cod/2002118.cif
http://qiserver.ugr.es/cod/2002119.cif
http://qiserver.ugr.es/cod/2002364.cif
http://qiserver.ugr.es/cod/2002365.cif