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Updated: Jul 19, 2025

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
Published on: March 24, 2018
Non-isothermal cold crystallization of liquid crystalline porphyrins
Alec L Dorfner1, Diana P Locoteta1, Caleb D Messinger1
1Siena College, Department of Chemistry and Biochemistry, 515 Loudon Road, Loudonville, NY, 12211, USA. jodonnell@siena.edu.
Abstract:
A series of liquid crystalline porphyrins was synthesized, purified, and characterized. Differential scanning calorimetry (DSC) and hot-stage polarized optical microscopy (HS-POM) revealed that the porphyrins in the series with shorter alkyl arm lengths exhibit kinetic cold crystallization, wherein the molecules spontaneously organize into large, disc-like structures that remain stable upon cooling. Using DSC, the kinetic and thermodynamic parameters related to these materials were determined. Analysis of non-isothermal crystallization revealed the presence of multiple nucleation and growth processes related to cold crystallization.
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