http://qiserver.ugr.es/cod/1001666.cif
http://qiserver.ugr.es/cod/1001667.cif
http://qiserver.ugr.es/cod/1001701.cif
http://qiserver.ugr.es/cod/1001702.cif
http://qiserver.ugr.es/cod/1001703.cif
http://qiserver.ugr.es/cod/1001863.cif