Guest-induced emission enhancement in the permanent porous conjugated carboracycle crystal.

ABSTRACT: Macrocyclization can provide space for realizing host-guest-mediated molecular sensing based on the regulation of excited-state structural change. Here, we report guest-induced luminescent changes in crystalline o-carborane-containing conjugated macrocycles, which develop an intrinsically porous crystal with 1D channels. The crystal can capture C4-length vaporous guests and subsequently exhibit guest-induced emission enhancement through the suppression of excited-state structural relaxation. Notably, the crystal showed successful reversible guest encapsulation without losing its crystalline porosity, as well as heat resistance up to 500 °C.

SUBMITTER: Yuhara K 

PROVIDER: S-EPMC12757783 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature