06858 IUPAC Gold Book - mesogenic group 10.1351/goldbook.MT06858 MT06858 current 1 A part of a molecule or macromolecule endowed with sufficient anisotropy in both attractive and repulsive forces to contribute strongly to mesophase or, in particular, liquid-crystal mesophase formation in low-molar-mass and polymeric substances. anisotropy https://goldbook.iupac.org//terms/view/AT06776 liquid-crystal https://goldbook.iupac.org//terms/view/LT06856 mesophase https://goldbook.iupac.org//terms/view/M03849 polymeric https://goldbook.iupac.org//terms/view/M03667 PAC, 2002, 74, 493. 'Definitions of basic terms relating to polymer liquid crystals (IUPAC Recommendations 2001)' on page 497 (https://doi.org/10.1351/pac200274030493) https://goldbook.iupac.org/terms/view/MT06858/html https://goldbook.iupac.org/terms/view/MT06858/json https://goldbook.iupac.org/terms/view/MT06858/plain Citation: 'mesogenic group' 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.MT06858 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. If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . 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. 2026-04-19T06:06:12+00:00