Synthesis, structure and photophysical properties of NIR aza-BODIPYs with F/N<sub>3</sub>/NH<sub>2</sub> groups at 1,7-positions

Synthesis, structure and photophysical properties of NIR aza-BODIPYs with F/N₃/NH₂ groups at 1,7-positions

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class="label">•: Aymmetric/asymmetric fluorine-containing aza-BODIPYs at 1/7-positions were prepared.
class="label">•: The effect of the withdrawing class="glyphImg imgLazyJSB">F group at 1/7-position on the photophysical properties is found to be almost negligible.
class="label">•: The replacement of class="glyphImg imgLazyJSB">F atoms with class="glyphImg imgLazyJSB">N₃/class="glyphImg imgLazyJSB">NH₂ groups resulted in a remarkable bathochromic shift.
class="label">•: Aza-BODIPY with a class="glyphImg imgLazyJSB">NH₂ group could be used as a turn-on fluorescent probe for pH value.