IUCrData is a peer-reviewed open-access data journal from the International Union of Crystallography (IUCr). This innovative publication aims to provide short descriptions of crystallographic datasets and datasets from related scientific disciplines, as well as facilitating access to the data. There are two primary article categories: Raw Data Letters and Data Reports. Raw Data Letters publish short descriptions of crystallographic raw data sets in the biological, chemical or materials science fields, allowing researchers to attract attention to particular features of the data that could be of interest to methods and software developers or may be relevant to the structural interpretation. Information for each dataset includes an imgCIF containing core metadata, a diffraction image, figures, and a description of the data and their processing. The journal adheres to the FAIR principles for which the correctness and completeness of the metadata are crucial. Data Reports describe crystal structures of inorganic, metal-organic or organic compounds. Information on each crystal structure includes the crystallographic data (CIF and structure factors), a data validation report, figures and a text representation of the data.

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