title: The smallest and one of the brightest. Efficient preparation and optical description of the parent borondipyrromethene system.
abstract: Fully unsubstituted 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) 1 was prepared. Reaction of 8-thiomethylbodipy 2 with triethylsilane in the presence of a catalytic amount of Pd and a stoichiometric amount of copper(I) thienyl-2-carboxylate (CuTC) in THF at 55 degrees C gave compound 1 in nearly quantitative yield. This compound displays high quantum yields (up to 93%) in polar solvents including water. Its optical properties and crystal structure are discussed.
authors: Departamento de Química, Universidad de Guanajuato, Col. Noria Alta S/N, Guanajuato, GTO 36050, Mexico.
authors: Ismael J
authors: IJ
authors: Arroyo
authors: Rongrong
authors: R
authors: Hu
authors: Gabriel
authors: G
authors: Merino
authors: Ben Zhong
authors: BZ
authors: Tang
authors: Eduardo
authors: E
authors: Peña-Cabrera