CAJ | 학술논문

设计、合成了宽带隙发深蓝光荧光的吡啶酮衍生物3,5-二甲基-6-腈基-2-(1H)-吡啶酮(DNPE),对其荧光特性进行了研究。通过红外光谱、核磁共振谱和元素分析确定了分子结构,并得到了其单晶结构：DNPE为三斜晶系,P-1空间群；a=0.39049 nm,b=0.73288 nm,c=1.2694 nm；α=77.09°,β=89.16°,γ=89.40°；并进一步通过紫外-可见吸收光谱、循环伏安曲线、荧光发射光谱表征了材料的光学带隙和发光性能。结果表明,DNPE 的光学带隙为3.52 eV,在乙醇溶液中的紫外吸收峰主要为215,237,330 nm；固体荧光最大发射峰为395 nm,为宽带隙深蓝色荧光,而液体中最大发射峰为375 nm,表明具有明显的溶剂化效应。分析显示3,5-二甲基-6-腈基-2-(1 H)-吡啶酮的荧光量子产率为66.54%。此研究不仅拓宽了宽带隙蓝光荧光发射材料的种类,而且有望在要求更宽带隙的蓝光主体材料中发挥重要作用。
설계、합성료관대극발심람광형광적필정동연생물3,5-이갑기-6-정기-2-(1H)-필정동(DNPE),대기형광특성진행료연구。통과홍외광보、핵자공진보화원소분석학정료분자결구,병득도료기단정결구：DNPE위삼사정계,P-1공간군；a=0.39049 nm,b=0.73288 nm,c=1.2694 nm；α=77.09°,β=89.16°,γ=89.40°；병진일보통과자외-가견흡수광보、순배복안곡선、형광발사광보표정료재료적광학대극화발광성능。결과표명,DNPE 적광학대극위3.52 eV,재을순용액중적자외흡수봉주요위215,237,330 nm；고체형광최대발사봉위395 nm,위관대극심람색형광,이액체중최대발사봉위375 nm,표명구유명현적용제화효응。분석현시3,5-이갑기-6-정기-2-(1 H)-필정동적형광양자산솔위66.54%。차연구불부탁관료관대극람광형광발사재료적충류,이차유망재요구경관대극적람광주체재료중발휘중요작용。
The paper designed and synthesized a wide band-gap pyridone derivatives 3,5-dimenthyl-6-nitrile-pyri-done(DNPE).The chemical structure of the complex was confirmed by FT-IR spectra,1 H NMR and elemental analysis techniques,and its crystal structures were also determined.DNPE was triclinic crystal system,P-1 space group,a=0.39049 nm,b=0.73288 nm,c=1.2694 nm;α=77.09°,β=89.16°,γ=89.40°.Optical band gap and photoluminescence were investigated by UV-Vis absorption spectra,cyclic voltammetry experi-ments and fluorescence emission spectrum.The results showed that its UV-Vis absorption peak in alcohol solu-tion were at about 215,237,330 nm,maximum emission peak was at 395 nm in solid state and was at 375 nm in liquid state,which showed DNPE had obvious solution effects.Fluorescence quantum efficiency of 3 ,5-dime-thyl-6-nitrile-pyridone was calculated by the value of 66.54%,which showed that pyridone derivatives had great application values both in fluorescent light-emitting materials and in blue-light emitting host materials.