reflectance and photophysical properties of rhodamine 6g (rh 6g)/2-(4-methyl-2-oxo-2h-chromen-7-yloxy) acetic acid (mohcyaa) hybrid for application in cold dye

Rhodamine 6g (rh6g) was modified by ethylenediamine to obtain rhodamine with amine functional group (rh6g-nh2). rh6g-nh2 as an initial core was used to bond coumarin derivatives. synthesized fluorescent hybrid dyes are specified using fourier transform infrared spectroscopy (ftir), to analyze the structure of the fluorescent pigments. near-infrared (uv-visible–nir) reflectance spectra are used to demonstrate the optical properties. uv-vis-nir reflectance spectra showed that hybrid dyes were transparent in the nir region.