We are world-leading experts in structural chemistry data, software and knowledge for materials and life sciences research and development. The world’s repository for experimentally derived small-molecule organic and metal-organic crystal structures. Used by thousands of scientists globally to drive novel research and discoveries.

Welcome to Access Structures, the CCDC’s and FIZ Karlsruhe’s free service to view and retrieve structures. Please use one or more of the boxes to find entries. If you enter details in more than one field the search will try to find records containing all the …

Established in 1965 with historical structures dating back to the 1920s, the Cambridge Structural Database (CSD) now contains over 1.25M accurate 3D structures with data from X-ray and neutron diffraction analyses and additional curation from the CCDC.

第37届中国控制与决策会议（CCDC 2025）将于2025年5月16日~19日在中国厦门市举行。 中国控制与决策会议是当前控制、系统、决策理论与相关技术领域的大型国际学术会议。 会议旨在为从事相关领域教育和研究的国内外专家、学者及工程技术人员提供一个学术交流平台。 会议交流形式有：大会报告、杰出讲座、会前研讨会、专题研讨会、专题辅导、教育论坛、分组报告和张贴论文等 …

The Cambridge Crystallographic Data Centre (CCDC) is a non-profit organisation based in Cambridge, England. Its primary [citation needed] activity is the compilation and maintenance of the Cambridge Structural Database, a database of small molecule crystal structures.

本文简单介绍一下申请CCDC号的一般流程，过程如下： 一：官网申请版. 8.1.这一步的第一部分是添加出版信息 (Add Publication)，一般来说申请CCDC号的cif文件还未发表，因此这一步除了打星号的Authors系统会自动使用CCDC账号的信息外，其它可以不用填写： 8.2.第二部分则是添加 晶体学家信息 (Add Crystallographer Details)，一般来说点击Use My Details即可，或者也可以填写数据解析和精修的人员的信息，填写完成后，勾选页面底部打星号的两个条款，然后点 …

Provide balance, uniformity and standardization for bidding and contracting procedures. CCDC documents are developed through a consultative process with representatives from all sectors in the construction industry. These consensus-based documents carry the endorsement of the four constituent national organizations.

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CDD is a protein annotation resource that consists of a collection of well-annotated multiple sequence alignment models for ancient domains and full-length proteins. These are available as position-specific score matrices (PSSMs) for fast identification of conserved domains in protein sequences via RPS-BLAST.