http://qiserver.ugr.es/cod/2002204.cif
http://qiserver.ugr.es/cod/2002205.cif
http://qiserver.ugr.es/cod/2002209.cif
http://qiserver.ugr.es/cod/9012333.cif
http://qiserver.ugr.es/cod/9012334.cif