Vapochromism of indolenine-based heptamethine cyanine dye adsorbed on silica gel

Herein, we present for the first time an organic-inorganic hybrid material comprising indolenine-based heptamethine cyanine dye adsorbed on silica gel, which shows vapochromism to amines or chlorinated solvents, leading to a color change.

Automated summary

Here, we introduce an organic-inorganic hybrid material consisting of an indolenine-based heptamethine cyanine dye adsorbed on silica gel. This material exhibits vapochromism towards amines or chlorinated solvents, resulting in a color change.