Imidazole-assisted film-based fluorescent sensor for the ultrasensitive detection of hydrazine

A substituted imidazole-based small molecule probe R-1 in its all phases ( viz. , solid, liquid, gel along with its polymeric film) serves as a complete ultrasensitive fluorescent sensor for N 2 H 4 (liquid or vapour form) with an LOD of 0.08 ppb.