Synthesis, electronic and photophysical properties of a bisacridinium-Zn(II) porphyrin conjugate

The synthesis of a novel bisacridinium-Zn(II) porphyrin is reported and its properties investigated via electrochemical, photophysical and computational studies. Cyclic voltammetry studies revealed a two-electron oxidation of the Zn(II) porphyrin and the simultaneous one electron reductions of the two acridiniums. Using absorption, emission and ultrafast transient absorption spectroscopies, the near total fluorescence quenching observed following excitation of either the acridinium or Zn(II) porphyrin units was assigned to ultrafast electron transfer (${\le }0.3$ ps) leading to a reduced acridinium and an oxidized porphyrin unit in the bisacridinium-Zn(II) porphyrin conjugate. In addition, computational studies were found to complement experimental results, with calculations revealing two near degenerate HOMOs for the porphyrin

Synthesis, electronic and photophysical properties of a bisacridinium-Zn(II) porphyrin conjugate

The synthesis of a novel bisacridinium-Zn(II) porphyrin is reported and its properties investigated via electrochemical, photophysical and computational studies. Cyclic voltammetry studies revealed a two-electron oxidation of the Zn(II) porphyrin and the simultaneous one electron reductions of the two acridiniums. Using absorption, emission and ultrafast transient absorption spectroscopies, the near total fluorescence quenching observed following excitation of either the acridinium or Zn(II) porphyrin units was assigned to ultrafast electron transfer (${\le }0.3$ ps) leading to a reduced acridinium and an oxidized porphyrin unit in the bisacridinium-Zn(II) porphyrin conjugate. In addition, computational studies were found to complement experimental results, with calculations revealing two near degenerate HOMOs for the porphyrin

Embarcados en el emprendimiento

El trabajo obtuvo un Premio Tomás García Verdejo a las buenas prácticas educativas en el Comunidad Autónoma de Extremadura para el curso 2021/2022. Modalidad BSe presenta un proyecto llevado a cabo en el IES Lacimurga Constantia Iulia de Navalvillar de Pela (Badajoz) en el que se pretendía fomentar el espíritu emprendedor de los alumnos a través de actividades organizadas desde distintas área. Otros objetivos de la propuesta eran: implicar a la comunidad educativa en el proyecto; trabajar competencias que por su naturaleza no se asocian directamente a un área concreta de contenidos, como son aprender a aprender, competencia social y cívica y sentido de la iniciativa y espíritu emprendedor y afianzar contenidos curriculares desde otra perspectiva de aprendizaje, fomentando el aprender a aprender y el emprendimientoES