One-Pot Synthesis of a Mono-O,B,N-strapped BODIPY Derivative Displaying Bright Fluorescence in the Solid State.
Tin(IV) catalysis allows isolation of a boron dipyrromethene derivative bearing a solitary strap around the boron center. The conditions favor internal cyclization without contamination by side products and provide high yields of product in good purity. A phenolate-based strap imposes chirality and causes geometrical distortion of the dipyrrin. Relatively strong fluorescence is observed for single crystals, evaporated films, and adsorbed layers. Single-crystal absorption and emission spectra resemble those observed from solution with contributions from a dimer.
Molecular Photonics Laboratory, School of Chemistry, Newcastle University , Bedson Building, Newcastle upon Tyne NE1 7RU, United Kingdom.
Dumitru
D
Sirbu
Molecular Photonics Laboratory, School of Chemistry, Newcastle University , Bedson Building, Newcastle upon Tyne NE1 7RU, United Kingdom.
Andrew C
AC
Benniston
Molecular Photonics Laboratory, School of Chemistry, Newcastle University , Bedson Building, Newcastle upon Tyne NE1 7RU, United Kingdom.
Anthony
0000-0003-0679-2232
A
Harriman