晶体cif文件已经申请了CCDC号,但是在www.ccdc.cam.ac.uk/data_request/cif这个网站上却下载不来。是不是只有发表了,才可以?那在写文章的时候,在补充材料里可以这样写吗?CCDC ****** contains the supplementary crystallographic data for this paper. These data can be obtained free of charge from The
Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data_request/cif.