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BOPAHY: a doubly chelated highly fluorescent pyrrole-acyl hydrazone -BF2 chromophore
Shandev Pookkandam Parambil1, Flip de Jong, Koen Veys
1Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium. wim.dehaen@kuleuven.be.
Abstract:
New easily functionalisable and highly fluorescent BOPAHY chromophores are synthesised via a one-pot two-step reaction starting from commercially available pyrrole-2-carbaldehydes and respective acyl hydrazides in the presence of BF3·OEt2. Most importantly, all BOPAHY dyes show excellent photophysical properties with quantum yields up to 0.92. Steady-state spectroscopy and quantum chemical calculations provide a first insight into these promising properties.
