A zinc phthalocyanine-benzoperylenetriimide conjugate for solvent dependent ultrafast energy vs. electron transfer
Valeria Navarro-Pérez1, Ana M Gutiérrez-Vílchez, Javier Ortiz
1Área de Química Orgánica, Instituto de Bioingeniería, Universidad Miguel Hernández, Avda. de la Universidad s/n, 03202 Elche, Spain. fdofdez@umh.es.
Abstract:
A novel zinc phthalocyanine-benzoperylenetriimide conjugate has been synthesized and its ability to undergo ultrafast energy and electron transfer as a function of solvent polarity has been demonstrated using the femtosecond transient absorption (fs-TA) technique operating at a femto- to nanosecond time scale.
More Related Videos
Related Concept Videos
Photochemical Electrocyclic Reactions: Stereochemistry
2.2K
The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
Selection Rules: Photochemical Activation
Selection Rules: Photochemical Activation
2.2K
The Z-Scheme of Electron Transport in Photosynthesis
12.8K
The light reactions of photosynthesis assume a linear flow of electrons from water to NADP+. During this process, light energy drives the splitting of water molecules to produce oxygen. However, oxidation of water molecules is a thermodynamically unfavorable reaction and requires a strong oxidizing agent. This is accomplished by the first product of light reactions: oxidized P680 (or P680+), the most powerful oxidizing agent known in biology. The oxidized P680 that acquires an electron from the...
12.8K


