Room-temperature selective cyclodehydrogenation on Au(111) via radical addition of open-shell resonance structures.

ABSTRACT: Cyclodehydrogenation is an important ring-formation reaction that can directly produce planar-conjugated carbon-based nanomaterials from nonplanar molecules. However, inherently high C-H bond energy necessitates a high temperature during dehydrogenation, and the ubiquity of C - H bonds in molecules and small differences in their bond energies hinder the selectivity of dehydrogenation. Here, we report a room-temperature cyclodehydrogenation reaction on Au(111) via radical addition of open-shell resonance structures and demonstrate that radical addition significantly decreases cyclodehydrogenation temperature and further improves the chemoselectivity of dehydrogenation. Using scanning tunneling microscopy and non-contact atomic force microscopy, we visualize the cascade reaction process invo

SUBMITTER: Li DY 

PROVIDER: S-EPMC11538238 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature