Benzo-annulated Triptycene Germafluorene을 기초로 한 폭발물 센서로의 응용

Abstract

New functionalized Metallafluorene have been synthesized and their optical characterizations are investigated. Metallafluorene unit has been interested, since metallafluorene has a unique optical and electronic properties. Here we report the synthesis of new type of photoluminescent metallafluorene. New metallafluorene have been characterized by NMR, FT-IR, UV-vis absorption spectroscopy and X-ray single crystallography. Their optical characteristics have been also investigated using photoluminescence spectroscopy. Possible applications such as OLED and Chemical Sensors will be presented. Triptycene Metallafluorene and Metallafluorene are synthesized and characterized. These compounds are of interest as light emissive layers, as they possess relatively low LUMO energy levels while maintaining high HOMO-LUMO optical gaps. Dierential scanning calorimetry measurements reveal that these Metallafluorene compounds have advantages of ther-mal stability above room temperature regions. Organic light-emitting diodes have been fabricated using thermal evaporation technique which emit blue light with an excellent diode behavior under the forward bias. In recent years, photoluminescence polysilole has been a topic of interest because of ther unusual electrical and optical properties. It is also reported that silole-containing polymers are selective chemosensors for nitroarematec oxidants, including TNT. Detection has been achieved though fluorescence quenching of the silole by the electron-deficient analyte. The luminescence of silole is due to a σ*-π* LUMO stabilized though conjugation of the σ* orbital of the silicon chain with the π* orbital of the butadiene moiety. The selectivity of the sensor is due to the helical structure of metallafluorene, which permits the intercalation of planar nitroaromatics.