http://qiserver.ugr.es/cod/1100347.cif
http://qiserver.ugr.es/cod/1100348.cif
http://qiserver.ugr.es/cod/1100353.cif
http://qiserver.ugr.es/cod/1100355.cif
http://qiserver.ugr.es/cod/1100359.cif
http://qiserver.ugr.es/cod/4101151.cif