Synthesis of ortho-carboranes with aromatic fluorophores demonstrates complex photoluminescent behavior, suggesting novel optical applications.
Ortho-Carborane is a cluster compound known for its ability to exhibit stimuli-responsive optical behaviour when substituted with aromatic fluorophores. Here, we describe the synthesis of two such compounds: 1-(4'-naphtho[2,3-b]thiophenyl)-ortho-carborane and 1-(4'-benzo[1,2-b;4,5-b']dithiophenyl)-ortho-carborane. Optical studies reveal complex electronic and photoluminescent behaviour including intramolecular charge transfer (ICT), excimer emission, and aggregation-induced emission (AIE).
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Marsh et al. (2025) studied this question.
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