Switching Cation Selectivity via Steric Tuning in Sumanene-Based Receptors

Abstract

Steric control of metal cation selectivity in curved π-systems based on sumanene scaffold is reported. In comparison to variety of examples of Cs+-oriented sumanene receptors, herein we show that increasing the steric hindrance of the receptor part enables tuning the recognition of metal cations, including the unprecedented design of sumanene-based lead(II) receptor.