CAJ | 학술논문

芴酮与2-萘酚在硫酸和3-巯基丙酸的作用下反应得到化合物螺[二苯并[a,j]氧杂蒽-14,9'-芴]。采用核磁共振、质谱、红外光谱和元素分析等对该化合物进行了表征,并通过X射线衍射法测得了其晶体结构,确定该化合物是通过二苯并[ a,j]氧杂蒽中的含氧六元杂环和芴中的五元环共用一个碳原子形成一个螺环。利用荧光光谱和热分析等手段对该化合物的性质进行了研究,结果表明其最大荧光发射峰为366 nm,熔点为297℃,热分解温度为329℃,具有较高的热稳定性。
물동여2-내분재류산화3-구기병산적작용하반응득도화합물라[이분병[a,j]양잡은-14,9'-물]。채용핵자공진、질보、홍외광보화원소분석등대해화합물진행료표정,병통과X사선연사법측득료기정체결구,학정해화합물시통과이분병[ a,j]양잡은중적함양륙원잡배화물중적오원배공용일개탄원자형성일개라배。이용형광광보화열분석등수단대해화합물적성질진행료연구,결과표명기최대형광발사봉위366 nm,용점위297℃,열분해온도위329℃,구유교고적열은정성。
Spiro[fluorene-9,9’-xanthene](SFX) and its derivatives as the unit of organic optoelectronic ma-terials have attracted much attention due to their promising thermal and photophysical properties. By tuning the conjugated degree and the steric of SFX, we designed a novel compound spiro[dibenzo[a,j]xanthene-14,9’-fluorene] and anticipated that it would have better performance than SFX. The reaction of 9H-fluoren-9-one and naphthalen-2-ol under the conditions of sulfuric acid and 3-mercaptopropanoic acid gave the target compound spiro[dibenzo[a,j]xanthene-14,9’-fluorene]. The compound was characterized by NMR, MS, IR spectra, elemental analysis and X-ray structural determination. The crystal data of the compound showed that a spiro ring was formed through the six-membered heterocyclic ring in dibenzo [ a, j ] xanthene sharing one carbon atom with the five-membered ring in fluorene. The photophysical and thermal properties were investigated by UV-Vis absorption, photoluminescence spectra, thermogravimetric analysis ( TGA ) and differential scanning calorimetry( DSC) . The maximum emission wavelength of the compound was found at 366 nm, and it showed a high thermal stability with a melting point of 297 ℃ and a decomposition temperature of 329 ℃. The results indicated that spiro[dibenzo[a,j]xanthene-14,9’-fluorene] could be used in the organic optoelectronic polymers to enhance their performance.