http://qiserver.ugr.es/cod/1006121.cif
http://qiserver.ugr.es/cod/1006122.cif
http://qiserver.ugr.es/cod/1006123.cif
http://qiserver.ugr.es/cod/1006124.cif
http://qiserver.ugr.es/cod/1006125.cif
http://qiserver.ugr.es/cod/1509536.cif
http://qiserver.ugr.es/cod/1510288.cif