http://qiserver.ugr.es/cod/9008255.cif
http://qiserver.ugr.es/cod/9008256.cif
http://qiserver.ugr.es/cod/9008257.cif
http://qiserver.ugr.es/cod/9008258.cif
http://qiserver.ugr.es/cod/9008259.cif
http://qiserver.ugr.es/cod/9008260.cif