http://qiserver.ugr.es/cod/4123994.cif
http://qiserver.ugr.es/cod/4124621.cif
http://qiserver.ugr.es/cod/4124624.cif
http://qiserver.ugr.es/cod/4124649.cif
http://qiserver.ugr.es/cod/4124685.cif