Solvatoalignment index and solvent-dependent behavior of asymmetric discotic liquid crystals: effect of polarity and alkyl chain length.

ABSTRACT: Discotic liquid crystals (DLCs) are emerging as versatile functional materials with significant potential for optical and sensing applications. Their photophysical behavior is highly sensitive not only to solvent polarity but also to molecular asymmetry and environmental factors such as viscosity and hydrogen-bonding ability. In this study, we systematically investigated the solvatochromic behavior of four structurally asymmetric DLC derivatives bearing diverse alkyl side chains across a wide range of solvents differing in polarity, viscosity, and hydrogen-bonding strength. Steady-state UV-Vis absorption and fluorescence spectroscopy revealed that solvent polarity alone cannot fully account for the observed spectral variations. Instead, the Kamlet-Abboud-Taft (KAT) model particularly the d

SUBMITTER: Kian R 

PROVIDER: S-EPMC12824189 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature