Talk:Mesophase

Latest comment: 5 months ago by Jähmefyysikko in topic Relation with the term 'liquid crystal'

Relation with the term 'liquid crystal' edit

After reading this, it is unclear to me whether the terms 'mesophase' and 'liquid-crystal phase' are synonyms or not. IUPAC Gold book does not help too much either. Liquid-crystal state is described as a 'mesomorphic state' with long-range orientational order and no (or partial) positional order. Are there mesomorphic states that do not fall into liquid-crystal category, i.e. states with long-range positional order and no orientational order?

The Gold book entry mesomorphic transition seems to imply that all mesophases are liquid-crystals. Jähmefyysikko (talk) 08:20, 5 December 2023 (UTC)Reply

Ok, found the answer: Plastic crystal. Hopefully I’ll find the time to update the article later, based on [1]. Jähmefyysikko (talk) 12:46, 5 December 2023 (UTC)Reply