{"term":{"id":"04015","title":"monolayer","longtitle":"IUPAC Gold Book - monolayer","doi":"10.1351\/goldbook.M04015","code":"M04015","status":"current","also defines":"<em>also defines<\/em>: floating monolayer","synonym":"<em>synonym<\/em>: Langmuir monolayer","definitions":[{"id":1,"text":"A single, closely packed layer of atoms or molecules. The term floating monolayer is used for certain spread monolayers or films which are in the condensed — often solid — state. The term 'Langmuir monolayer' has recently been coined for spread monolayers. This usage is not recommended.","links":[{"term":"films","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/F02366"},{"term":"layer","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/L03488"}],"sources":["PAC, 1994, 66, 1667. 'Thin films including layers: terminology in relation to their preparation and characterization (IUPAC Recommendations 1994)' on page 1672 (https:\/\/doi.org\/10.1351\/pac199466081667)"],"seealso":["Orange Book, 2nd ed., p. 251 (https:\/\/media.iupac.org\/publications\/analytical_compendium\/)"]}],"altoutputs":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/M04015\/html","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/M04015\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/M04015\/plain"},"citation":"Citation: 'monolayer' 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.M04015","license":"The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https:\/\/creativecommons.org\/licenses\/by-sa\/4.0\/) for individual terms.","collection":"If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org .","disclaimer":"The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.","accessed":"2026-06-29T11:51:44+00:00"}}