http://qiserver.ugr.es/cod/1001807.cif
http://qiserver.ugr.es/cod/1001808.cif
http://qiserver.ugr.es/cod/1004122.cif
http://qiserver.ugr.es/cod/1510883.cif
http://qiserver.ugr.es/cod/9009772.cif