Title: closo-
Long Title: IUPAC Gold Book - <i>closo</i>-
DOI: 10.1351/goldbook.C01106
Status: current

Definition
An affix used in names to denote a cage or closed structure, especially a boron skeleton that is a polyhedron having all triangular faces.

Related Term
- cage: https://goldbook.iupac.org/terms/view/C00770

Sources
- Blue Book, p. 464 (https://www.acdlabs.com/iupac/nomenclature/)
- PAC, 1972, 30, 681. 'Nomenclature of Inorganic Boron Compounds' on page 686 (https://doi.org/10.1351/pac197230030681)
- Red Book, 3rd ed., p. 245

Other Outputs
- html: https://goldbook.iupac.org/terms/view/C01106/html
- json: https://goldbook.iupac.org/terms/view/C01106/json
- xml: https://goldbook.iupac.org/terms/view/C01106/xml

Citation: Citation: '<i>closo</i>-' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.C01106
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Accessed: 2026-05-15T02:30:30+00:00