Two-dimensional carbazole-based derivatives as versatile chemosensors for colorimetric detection of cyanide and two-photon fluorescence imaging of viscosity in vitro
Two-dimensional carbazole-based chemosensors L1 and L2 were developed. L1 had the high selectivity and sensitivity for the colormetric detection of CN−. L2 can be used as a molecular rotor and had a “turn on” fluorescence response to viscosity. L2 can be applied for visualizing viscosity in vitro under the two-photon excitation.