The structural modification of thiophene-linked porphyrin sensitizers for dye-sensitized solar cells
摘要:
Three donor (pi-spacer) acceptor porphyrin dyes were synthesized for use in dye-sensitized solar cells The dyes comprised the same donor (porphyrin derivative) and acceptor/anchoring group (2-cyanoacrylic acid) but varying pi-spacer consisting of a combination of 4-methylthiophene, 4-hexylthiophene or 3,4-ethylenedioxythiophene groups The dyes displayed different adsorption behavior and coverage of the TiO2 surface (C) 2010 Elsevier Ltd. All rights reserved
The structural modification of thiophene-linked porphyrin sensitizers for dye-sensitized solar cells
摘要:
Three donor (pi-spacer) acceptor porphyrin dyes were synthesized for use in dye-sensitized solar cells The dyes comprised the same donor (porphyrin derivative) and acceptor/anchoring group (2-cyanoacrylic acid) but varying pi-spacer consisting of a combination of 4-methylthiophene, 4-hexylthiophene or 3,4-ethylenedioxythiophene groups The dyes displayed different adsorption behavior and coverage of the TiO2 surface (C) 2010 Elsevier Ltd. All rights reserved
Gold Catalysts Can Generate Nitrone Intermediates from a Nitrosoarene/Alkene Mixture, Enabling Two Distinct Catalytic Reactions: A Nitroso-Activated Cycloheptatriene/Benzylidene Rearrangement
作者:Sayaji Arjun More、Rahul Dadabhau Kardile、Tung-Chun Kuo、Mu-Jeng Cheng、Rai-Shung Liu
DOI:10.1021/acs.orglett.1c01857
日期:2021.7.16
Gold-catalyzedreactions of cycloheptatrienes with nitrosoarenes yield nitrone derivatives efficiently. This reaction sequence enables us to develop gold-catalyzed aerobic oxidations of cycloheptatrienes to afford benzaldehyde derivatives using CuCl and nitrosoarenes as co-catalysts (10–30 mol %). Our density functional theory calculations support a novel nitroso-activated rearrangement, tropylium