Elucidating the Excited State Behavior of Pyridyl Pyridinium Systems via Computational and Transient Absorption Studies of Tetrahedral Multichromophoric Arrays and their Model Compounds
Abstract:The tetrahedral shape‐persistent molecule 14+, containing four identical pyridyl pyridinium units connected via a sp3hybridized carbon atom, has been investigated in detail by means of steady‐state and time resolved spectroscopy. Remarkable photophysical properties are observed, particularly in comparison with protonated and methylated analogues (1H48+, 1Me48+), which exhibit a substantially shorter excited state lifetimes and lower emission quantum yields. Theoretical studies have rationalized the behavior of… Show more
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