Carbones with its Elusive Bonding Description and Broad Implication

报告人：Professor Tiow-Gan Ong

时间：2023年11月10日（周五）下午15:40

地点：笃行楼316-1

报告人简介：

Tiow-Gan Ong (TGO)is an Inorganic Chemist who has distinguished himself or his work on non-octet chemical bonding using a "ligand-design strategy." He is currently a Research Fellow and Academic Deputy Director at the nstitute of Chemistry, Academia Sinica, Taiwan, and a joint-appointment Professor at National Taiwan University and the University of Central Florida.TGOgroup is internationally known for their contributions to organometallicchemistry and catalysis, which have led to several key breakthroughs, including i)Selective C–H/C-O bond activation,ii)New class of C0 science, and iii) Isolation of unstable dicarbon (C2).TGO's scientific contributions have been widely recognized at the national and international levels. He has received several prestigious awards, including the University of Ottawa Visiting Research Award (2020), the Outstanding Research Award from the Taiwan Ministry of Science and Technology (2019), and the Academia Sinica Presidential Scholar Program Award (2021).

报告摘要：

Carbones ( L®C¬L) have emerged recently as a new class of organic molecules featuring carbon(0) directly stabilized by two electron-rich groups (L) through Lewis donor-acceptor interaction.1 Other mesomeric features can also be understood in terms of allenic or zwitterionic form. Owing to the peculiar bonding situation and the zero-valent nature of the central atoms, carbones have attracted much attention in the chemical community as NHC alternatives because their strong s-donating ability broadly impacts transition-metal coordination, small molecule activation, maingroup chemistry, redox non-innocent coordination, and catalysis. This presentation will describe the synthetic preparation and chemical properties of the carbone as well as its application toward supporting metallic complexes for catalysis in tandem photoredox, cross-coupling reaction via tandem C-H and C-O bond activation and a new spin in diversifying FLP reactivity with co-modulator benzyl alcohol.