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

  • 2.2. Specification of the Crystallographic Information Framework format (CIF format)  (pp. 1-20) | html | pdf | chapter contents |
    John C. Bollinger and James R. Hester
    • 2.2.1. Introduction  (p. 1) | html | pdf |
    • 2.2.2. Data model and terminology  (pp. 1-2) | html | pdf |
      • 2.2.2.1. Case insensitivity  (p. 2) | html | pdf |
    • 2.2.3. CIF syntax  (pp. 2-13) | html | pdf |
      • 2.2.3.1. CIF 1.1 syntax  (pp. 2-3) | html | pdf |
        • 2.2.3.1.1. CIF 1.1 character set  (p. 3) | html | pdf |
        • 2.2.3.1.2. Inline text  (p. 3) | html | pdf |
        • 2.2.3.1.3. White space and comments  (p. 3) | html | pdf |
        • 2.2.3.1.4. Reserved character sequences  (pp. 3-4) | html | pdf |
        • 2.2.3.1.5. Data values  (p. 4) | html | pdf |
        • 2.2.3.1.6. Data names  (p. 4) | html | pdf |
        • 2.2.3.1.7. Data items  (pp. 4-5) | html | pdf |
        • 2.2.3.1.8. Data blocks and save frames  (p. 5) | html | pdf |
        • 2.2.3.1.9. CIF 1.1 file  (pp. 5-6) | html | pdf |
        • 2.2.3.1.10. Comparison with STAR 1.0  (p. 6) | html | pdf |
        • 2.2.3.1.11. Complete formal grammar  (p. 6) | html | pdf |
      • 2.2.3.2. CIF 2.0 syntax  (pp. 6-13) | html | pdf |
        • 2.2.3.2.1. CIF 2.0 character set  (pp. 6-7) | html | pdf |
        • 2.2.3.2.2. White space and comments  (pp. 7-8) | html | pdf |
        • 2.2.3.2.3. Reserved character sequences  (p. 8) | html | pdf |
        • 2.2.3.2.4. Simple data values  (pp. 8-9) | html | pdf |
        • 2.2.3.2.5. Compound data values  (p. 9) | html | pdf |
        • 2.2.3.2.6. Data names  (pp. 9-10) | html | pdf |
        • 2.2.3.2.7. Data items  (p. 10) | html | pdf |
        • 2.2.3.2.8. Data blocks and save frames  (p. 10) | html | pdf |
        • 2.2.3.2.9. CIF 2.0 file  (p. 11) | html | pdf |
        • 2.2.3.2.10. Comparison with STAR 2.0  (pp. 11-13) | html | pdf |
        • 2.2.3.2.11. Complete formal grammar  (p. 13) | html | pdf |
      • 2.2.3.3. Differences between CIF 1.1 and CIF 2.0  (p. 13) | html | pdf |
        • 2.2.3.3.1. Version code  (p. 13) | html | pdf |
        • 2.2.3.3.2. Character set and encoding  (p. 13) | html | pdf |
        • 2.2.3.3.3. White space and line termination  (p. 13) | html | pdf |
        • 2.2.3.3.4. Identifiers  (p. 13) | html | pdf |
        • 2.2.3.3.5. Data values  (p. 13) | html | pdf |
    • 2.2.4. CIF semantics  (pp. 14-19) | html | pdf |
      • 2.2.4.1. Data names  (p. 14) | html | pdf |
      • 2.2.4.2. Data values  (pp. 14-19) | html | pdf |
        • 2.2.4.2.1. Null values  (p. 15) | html | pdf |
        • 2.2.4.2.2. Character values  (pp. 15-18) | html | pdf |
        • 2.2.4.2.3. Numeric values  (pp. 18-19) | html | pdf |
        • 2.2.4.2.4. Implicit data typing  (p. 19) | html | pdf |
        • 2.2.4.2.5. Alternative content types  (pp. 19-20) | html | pdf |
      • 2.2.4.3. Order independence  (p. 19) | html | pdf |
    • 2.2.5. Considerations for CIF exchange and archiving  (pp. 19-20) | html | pdf |
      • 2.2.5.1. CIF 1.1 text  (pp. 19-20) | html | pdf |
      • 2.2.5.2. CIF 2.0 documents  (p. 20) | html | pdf |
    • References | html | pdf |
    • Figures
      • Fig. 2.2.2.1. A schematic view of the CIF data model  (p. 1) | 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  (p. 6) | 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  (p. 11) | html | pdf |
    • Tables
      • Table 2.2.3.1. EBNF summary  (p. 2) | html | pdf |
      • Table 2.2.3.2. Complete formal grammar for CIF 1.1  (p. 7) | html | pdf |
      • Table 2.2.3.3. Complete formal grammar for CIF 2.0  (p. 12) | html | pdf |
      • Table 2.2.4.1. Mapping from CIF syntax to data values  (p. 14) | html | pdf |