International Tables for Crystallography (2026). Vol. G. Early view chapter
https://doi.org/10.1107/97809553602060000992

Chapter 2.2. Specification of the Crystallographic Information Framework format (CIF format)

Contents

  • Specification of the Crystallographic Information Framework format (CIF format) | html | pdf | chapter contents |
    John C. Bollinger and James R. Hester
    • 2.2.1. Introduction| html | pdf |
    • 2.2.2. Data model and terminology| html | pdf |
      • 2.2.2.1. Case insensitivity| html | pdf |
    • 2.2.3. CIF syntax| html | pdf |
      • 2.2.3.1. CIF 1.1 syntax| html | pdf |
        • 2.2.3.1.1. CIF 1.1 character set| html | pdf |
        • 2.2.3.1.2. Inline text| html | pdf |
        • 2.2.3.1.3. White space and comments| html | pdf |
        • 2.2.3.1.4. Reserved character sequences| html | pdf |
        • 2.2.3.1.5. Data values| html | pdf |
        • 2.2.3.1.6. Data names| html | pdf |
        • 2.2.3.1.7. Data items| html | pdf |
        • 2.2.3.1.8. Data blocks and save frames| html | pdf |
        • 2.2.3.1.9. CIF 1.1 file| html | pdf |
        • 2.2.3.1.10. Comparison with STAR 1.0| html | pdf |
        • 2.2.3.1.11. Complete formal grammar| html | pdf |
      • 2.2.3.2. CIF 2.0 syntax| html | pdf |
        • 2.2.3.2.1. CIF 2.0 character set| html | pdf |
        • 2.2.3.2.2. White space and comments| html | pdf |
        • 2.2.3.2.3. Reserved character sequences| html | pdf |
        • 2.2.3.2.4. Simple data values| html | pdf |
        • 2.2.3.2.5. Compound data values| html | pdf |
        • 2.2.3.2.6. Data names| html | pdf |
        • 2.2.3.2.7. Data items| html | pdf |
        • 2.2.3.2.8. Data blocks and save frames| html | pdf |
        • 2.2.3.2.9. CIF 2.0 file| html | pdf |
        • 2.2.3.2.10. Comparison with STAR 2.0| html | pdf |
        • 2.2.3.2.11. Complete formal grammar| html | pdf |
      • 2.2.3.3. Differences between CIF 1.1 and CIF 2.0| html | pdf |
        • 2.2.3.3.1. Version code| html | pdf |
        • 2.2.3.3.2. Character set and encoding| html | pdf |
        • 2.2.3.3.3. White space and line termination| html | pdf |
        • 2.2.3.3.4. Identifiers| html | pdf |
        • 2.2.3.3.5. Data values| html | pdf |
    • 2.2.4. CIF semantics| html | pdf |
      • 2.2.4.1. Data names| html | pdf |
      • 2.2.4.2. Data values| html | pdf |
        • 2.2.4.2.1. Null values| html | pdf |
        • 2.2.4.2.2. Character values| html | pdf |
        • 2.2.4.2.3. Numeric values| html | pdf |
        • 2.2.4.2.4. Implicit data typing| html | pdf |
        • 2.2.4.2.5. Alternative content types| html | pdf |
      • 2.2.4.3. Order independence| html | pdf |
    • 2.2.5. Considerations for CIF exchange and archiving| html | pdf |
      • 2.2.5.1. CIF 1.1 text| html | pdf |
      • 2.2.5.2. CIF 2.0 documents| html | pdf |
    • References | html | pdf |
    • Figures
      • Fig. 2.2.2.1. A schematic view of the CIF data model| html | pdf |
      • Fig. 2.2.3.1. A simple CIF describing a small-molecule structure using syntax version 1.1 and data names from the DDLm version of the core CIF dictionary| html | pdf |
      • Fig. 2.2.3.2. A simple CIF describing a small-molecule structure using syntax version 2.0 and data names from the DDLm version of the core CIF dictionary| html | pdf |
    • Tables
      • Table 2.2.3.1. EBNF summary| html | pdf |
      • Table 2.2.3.2. Complete formal grammar for CIF 1.1| html | pdf |
      • Table 2.2.3.3. Complete formal grammar for CIF 2.0| html | pdf |
      • Table 2.2.4.1. Mapping from CIF syntax to data values| html | pdf |