Optical Cycling Functionalization of Arenes

Autor: Claire E. Dickerson, Wesley C. Campbell, Justin R. Caram, Anastassia N. Alexandrova, Guo-Zhu Zhu, Han Guo, Eric R. Hudson
Rok vydání: 2021
Předmět:
Zdroj: The journal of physical chemistry letters, vol 12, iss 16
ISSN: 1948-7185
Popis: Closed, laser-induced optical transitions ("optical cycling transitions") of molecules can be used for state preparation and measurement in quantum information science and quantum sensing. Increasingly complex molecular species supporting optical cycling can provide new capabilities for quantum science, and it is not clear if there is a limit on their size or complexity. We explore Ca-O-L molecular constructs to support the optical cycling center, Ca, with ligands, L, being arenes. We find that L can be as large as coronene (i.e., CaOC24H11) without losing the diagonality of the Franck-Condon factor (FCF). Furthermore, L can be substituted with electron-withdrawing groups to improve the FCF. Larger L, beyond ∼7 rings, can disrupt the diagonality of the FCF by closing the HOMO-LUMO ligand electronic state gap and reordering with the local states on the cycling center. Overall, we find that optical cycling can be retained for arenes, and we offer a principle for their design.
Databáze: OpenAIRE