http://qiserver.ugr.es/cod/4123978.cif
http://qiserver.ugr.es/cod/4123979.cif
http://qiserver.ugr.es/cod/4124485.cif
http://qiserver.ugr.es/cod/4124510.cif
http://qiserver.ugr.es/cod/4124521.cif
http://qiserver.ugr.es/cod/5000126.cif