http://qiserver.ugr.es/cod/1549262.cif
http://qiserver.ugr.es/cod/1549263.cif
http://qiserver.ugr.es/cod/1549264.cif
http://qiserver.ugr.es/cod/1549265.cif
http://qiserver.ugr.es/cod/1549266.cif
http://qiserver.ugr.es/cod/1549880.cif