Excited-State Rotational Dynamics of Amine-Functionalized Terephthalic Acid Derivatives as Linker Models for Metal-Organic Frameworks.

ABSTRACT: Understanding how structural modifications affect the photophysics of organic linkers is crucial for their integration into metal-organic frameworks (MOFs) for light-driven applications. This study explores the impact of varying the amine functional group position on two terephthalic acid derivatives─linker 1 and linker 2─by investigating their photophysics through a combination of steady-state and ultrafast laser spectroscopy and time-dependent density functional theory (TD-DFT) calculations. With tetrahydrofuran as the solvent, time-correlated single-photon counting revealed a 2-fold increase in the S₁ excited-state lifetime of the molecule with the amine group at the meta position compared with that of the molecule with the amine group at the ortho position. Thi

SUBMITTER: Healing G 

PROVIDER: S-EPMC11789137 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature