Barman, Soumitra; Singh, Ashish; Rahimi, Faruk Ahamed; Maji, Tapas Kumar published an article in 2021. The article was titled 《Metal-free catalysis: A redox-active donor-acceptor conjugated microporous polymer for selective visible-light-driven CO2 reduction to CH4》, and you may find the article in Journal of the American Chemical Society.Product Details of 4316-58-9 The information in the text is summarized as follows:
Achieving more than a two-electron photochem. CO2 reduction process using a metal-free system is quite exciting and challenging, as it needs proper channeling of electrons. In the present study, we report the rational design and synthesis of a redox-active conjugated microporous polymer (CMP), TPA-PQ, by assimilating an electron donor, tris(4-ethynylphenyl)amine (TPA), with an acceptor, phenanthraquinone (PQ). The TPA-PQ shows intramol. charge-transfer (ICT)-assisted catalytic activity for visible-light-driven photoreduction of CO2 to CH4 (yield = 32.2 mmol g-1) with an impressive rate (2.15 mmol h-1 g-1) and high selectivity (>97%). Mechanistic anal. based on exptl. results, in situ DRIFTS, and computational studies reveals that the potential of TPA-PQ for catalyzing photoreduction of CO2 to CH4 was energetically driven by photoactivated ICT upon surface adsorption of CO2, wherein adjacent keto groups of PQ unit play a pivotal role. The critical role of ICT for stimulating photocatalysis is further illustrated by synthesizing another redox-active CMP (TEB-PQ), bearing triethynylbenzene (TEB) and PQ, that shows 8-fold lesser activity for photoreduction toward CO2 to CH4 (yield = 4.4 mmol g-1) as compared to TPA-PQ. The results demonstrate a novel concept for CO2 photoreduction to CH4 using an efficient, sustainable, and recyclable metal-free robust organic photocatalyst. In the experiment, the researchers used Tris(4-bromophenyl)amine(cas: 4316-58-9Product Details of 4316-58-9)
In other references, Tris(4-bromophenyl)amine(cas: 4316-58-9) is often used in the synthesis of porous luminescent covalent–organic polymers (COPs)Product Details of 4316-58-9
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary