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Improving Quantum Efficiencies of Siloles and Silole‐Derived Butadiene Chromophores through Structural Tuning
Author(s) -
Boydston Andrew J.,
Pagenkopf Brian L.
Publication year - 2004
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200461844
Subject(s) - chromophore , photoluminescence , monomer , substituent , photochemistry , steric effects , luminescence , chemistry , materials science , optoelectronics , organic chemistry , polymer
A brighter future for siloles. Luminescent silole chromophores with the highest quantum efficiencies reported for a fully substituted monomeric silole are generated by altering the steric properties of the substituent groups. Treatment of 1,1‐dimethylsiloles with Bu 4 NF (TBAF) in THF rapidly gives stereospecific desilylation at room temperature (see scheme). Intense solid‐state photoluminescence is observed in thin films of the silole fluorophores.