Synthesis and size-dependent properties of multiple sizes of chlorinated fluorocycloparaphenylenes

Abstract

In recent years, fluorinated cycloparaphenylenes (FCPPs) have attracted attention as electron-negative CPPs as well as cyclic fluoroarenes. Herein, we report the synthesis of heterogenously polyhalogenated CPPs, chlorinated FCPPs (Cl-F[n]CPPs; n = 6, 8, 10, 12, 14), through nickel- and gold-based methods. The size-dependent photophysical behaviors of Cl-F[n]CPPs, which are different from those of pristine CPPs, have been uncovered in this study.