{"term":{"id":"08320","title":"chemical shift anisotropy","longtitle":"IUPAC Gold Book - chemical shift anisotropy","doi":"10.1351\/goldbook.08320","code":"08320","status":"current","initialism":"<em>initialism<\/em>: CSA","definitions":[{"id":1,"text":"Chemical shift difference between isotropic and anisotropic states in nuclear magnetic resonance spectroscopy.","notes":{"1":"Nuclei which are part of a specific functional group resonate at different frequencies depending on shielding by the local electronic environment and thus can give information on their relative orientation.","2":"Chemical shift anisotropy also contributes to nuclear spin relaxation."},"contexts":[],"links":[{"term":"anisotropic","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/08223"},{"term":"nuclear magnetic resonance spectroscopy","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/08218"}],"sources":["PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 683 (https:\/\/doi.org\/10.1515\/pac-2019-0203)"]}],"altoutputs":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/08320\/html","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/08320\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/08320\/plain"},"citation":"Citation: 'chemical shift anisotropy' 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.08320","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":"2026-06-29T10:52:03+00:00"}}