A molecular probe for recognizing the size of hydrophobic cavities based on near-infrared absorbing diradical–PtII complexes†
Abstract
A diradical–platinum(II) complex was able to recognize the subtle difference in cavity size between β- and γ-cyclodextrin with on–off switching of intense near-infrared absorption. This provides a new probe for identifying the size of hydrophobic cavities, which has been successfully applied here to differentiate human serum albumin from α-chymotrypsin.