Study on the Nitration Reaction of N,N-diphenylamine Compounds and Its Characterization as Organic Light Emitting Diode (OLED) Material

Organic Light Emitting Diode (OLED) is one of the developing technologies utilizing organic compounds, especially aromatic compounds with conjugated double bonds. The aims of this research is to study the transformation of N,N-diphenylamine (DPA) to become potential compounds that can be utilized as precursor of OLED material. In this research, DPA transformation have been done through nitration utilizing both conventional and Microwave Assisted Organic Synthesis (MAOS) method. Various reactions have been performed at 30 to 45 oC, for 15 to 240 minutes, and the power of the microwave reactor is 400 W. The nitration product of N,N-diphenylamine was characterized with Fourier-Transform Infrared (FT-IR), UV-Vis, fluorescence, and Nuclear Magnetic Resonance (NMR) spectroscopy. Based on the characterization of the product, the nitration of N,N-diphenylamine has been successfully performed. In addition, the maximum longwave UV-Vis spectrum absorption for the product in acetone was 406 nm. For the emission spectrum, the product emitted light at 413 and 498 nm. The product was potential as OLED material because its ability to emit light in the visible area.