Abstract: The present disclosure generally relates to optical molecules, including but not limited to 1,3-thiazolidin-4-ones and other molecules comprising an aza-heterocyclic ring system containing a chalcogen. In some embodiments, the molecules may absorb light between 300 nm and 800 nm, e.g., appearing as various colors, depending on the absorbance. In some cases, the optical molecules can be used as color additives, pigments, dyes, or the like. Other embodiments of the disclosure are generally directed to systems and devices using such compounds, methods of using such compounds, kits involving such compounds, or the like.

Abstract: The present disclosure generally relates to emitting organic molecules, including but not limited to, pyrazoles such as 2-phenyl-2H-pyrazol-3-yl acetate, etc. In some cases, the molecules are able to emit in blue or green wavelengths. In some aspects, such molecules may be used in organic light emitting diodes. In certain embodiments, the molecules may comprise one or more bridge moieties and one or more chromophores. In some embodiments, these molecules can be used as electroluminescent media in devices requiring light emission as a function of applied voltage. Other embodiments of the disclosure are generally directed to systems and devices using such molecules, methods of using such molecules, e.g., to control the emission of light, kits involving such molecules, or the like.