報告: Prof. Abhishek Dey  

Indian Association for the Cultivation of Science, Department of Inorganic Chemistry, 2A Raja SC Mullick Road, Kolkata, West Bengal, India

時間：2019年5月24日（周五） 上午10:00—11:30

地點：beat365化學學院A區717報告廳.

報告摘要：

Managing Protons and Electrons in Small Molecule Activation

Abhishek Dey

 Indian Association for the Cultivation of Science, Department of Inorganic Chemistry, 2A Raja SC Mullick Road, Kolkata, West Bengal, India 700032

       Small molecule activation often requires both protons and electrons. This includes chemical transformations key to sustainable energy and environment e.g. reduction of H⁺, O₂, CO₂ and N₂. Similarly, mono-oxygenation of organic molecules using molecular oxygen, a process often described as the Holy grail of chemistry, requires protons and electrons. Erstwhile mechanistic investigations on metallo-enzyme active sites which catalyses these reactions have revealed that the proton and electron delivery often occur in distinct chemical steps and in many cases, coupled, in the same steps. This talk to focus on control of proton and electron delivery in synthetic inorganic molecular catalysts to achieve efficient catalysis using a combination of synthesis, self-assembly, in-situ spectroscopy and electrochemistry. This includes catalysts for hydrogen generation, oxygen reduction, organic substrate oxidation using oxygen and CO₂ reduction; all under aqueous environment and ambient conditions.

References

1) M. Mukherjee, A. Dey Central Science 2019, 5, 671

2) S. Bhunia, A. Rana, P. Roy, D. J. Martin, M. L. Pegis, B. Roy, A. Dey J. Am. Chem. Soc. 2018, 9444-9457.

3) Md. E. Ahmed, S. Dey, M. Y. Daresbourgh, A. Dey J. Am. Chem. Soc. 2018, Just Accepted

4) S. Chatterjee, K. Sengupta, B. Mondal, S. Dey, A. Dey, Acc. Chem. Res. 2017, 50, 1744