下面给CCDC网站原文介绍：
The Cambridge Crystallographic Data Centre accepts depositions of crystal structure data from X-ray and neutron diffraction studies, and from powder studies using a constrained refinement, forrganic compounds /metal-organic compounds.These data should be sent to deposit@ccdc.cam.ac.uk following the instructions below:
Data depositions with the CCDC are of two main types:
Pre-Publication: your structure(s) are being submitted for publication in a journal
Private Communications to the CSD: your structure(s) are not intended for publication, but you wish them to be available to other scientists through the CSD
However, data for structures which have already appeared in a journal and are not yet in the CSD are always welcome. Depositions should include the list of authors and the full journal reference. An electronic or printed copy of the journal article is appreciated, especially for the less-common journals.
Note that data for Acta Crystallographica and Zeitschrift für Kristallographie - New Crystal Structures are received from the Editorial offices.
The electronic CIF format should be used for all depositions. If this causes significant problems, please contact deposit@ccdc.cam.ac.uk to discuss other possible formats. However, most major journals now require cifs and the notes for authors should be consulted.
On receipt, all depositions are stored in the secure and separate CCDC Supplementary Data Archive. After publication, deposited structures will be processed to the main distributed CSD, and the original deposited data will also be made freely available to all scientists on request, for bona fide research purposes，
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主要是不知道你说什么？
当把单晶CIF文件提交给CCDC时，会给你一个号，这个号不是这个化合物单晶对应的唯一的号码？
应该是啊，三年之内一号一物啊
我也发现这个问题了，ccdc要求输入的是CSD号，而CSD号都是字母加数字的形式的，程序没找到就把某一个升级包的全给你显示出来了，就会是好几千个，你通过Diagram看一下哪个都不是！
今天听说是两年后才能搜到，不知道是不是真的？
而且我用画结构式也搜不到
竟嬷鳎艺馑阋桓愣嗤栋伞！�
简而言之，CSD是CCDC公司下的一款商品。CCDC的全称是：Cambridge Crystallographic Data Centre， 而CSD的全称是：Cambridge Structural Database。
可以说CSD 号是从CCDC号转化提取，并不断更新增加过来的：
1，结构被deposite到CCDC，就像是一个结构被建立了档案，每个档案的索引号就是所谓的ccdc号了。
2，而当结构发表之后，该结构的CCDC号也就被加入到CSD系统中，并赋予一个新的索引号（RefID)。也就是所谓的CSD号了。
所以，请注意CCDC索引号和CSD索引号完全不是同一会事情。无论从形式上还是功能上都不是不同的。也就是说，你如果想做CSD里面通过索引号查找结构，只能用CSD 的refID.
下面给CCDC网站原文介绍：
The Cambridge Crystallographic Data Centre accepts depositions of crystal structure data from X-ray and neutron diffraction studies, and from powder studies using a constrained refinement, forrganic compounds /metal-organic compounds.These data should be sent to deposit@ccdc.cam.ac.uk following the instructions below:
Data depositions with the CCDC are of two main types:
Pre-Publication: your structure(s) are being submitted for publication in a journal
Private Communications to the CSD: your structure(s) are not intended for publication, but you wish them to be available to other scientists through the CSD
However, data for structures which have already appeared in a journal and are not yet in the CSD are always welcome. Depositions should include the list of authors and the full journal reference. An electronic or printed copy of the journal article is appreciated, especially for the less-common journals.
Note that data for Acta Crystallographica and Zeitschrift für Kristallographie - New Crystal Structures are received from the Editorial offices.
The electronic CIF format should be used for all depositions. If this causes significant problems, please contact deposit@ccdc.cam.ac.uk to discuss other possible formats. However, most major journals now require cifs and the notes for authors should be consulted.
On receipt, all depositions are stored in the secure and separate CCDC Supplementary Data Archive. After publication, deposited structures will be processed to the main distributed CSD, and the original deposited data will also be made freely available to all scientists on request, for bona fide research purposes，