CAJ | 학술논문

以2，5-二溴吡啶为原料，通过格式置换法（GRIM）合成了聚吡啶（PPY）。采用红外吸收光谱（IR）及热重分析（TG）对其结构及热稳定性能进行了表征，紫外一可见吸收光谱（UV—Vis）、荧光发射光谱（FL）及电化学分析法对其光物理和电化学性能进行了研究。结果表明，PPY具有较好的热稳定性能，其stokes位移为130nm，具有较好的发光特性。电化学分析显示PPY具有较好的电化学还原特性，具有较好的电子传输性，其电子亲和能（Ea）为3．35eV，电离能（Lp）为5．97eV，能隙（Eg）为2．62eV。
이2，5-이추필정위원료，통과격식치환법（GRIM）합성료취필정（PPY）。채용홍외흡수광보（IR）급열중분석（TG）대기결구급열은정성능진행료표정，자외일가견흡수광보（UV—Vis）、형광발사광보（FL）급전화학분석법대기광물리화전화학성능진행료연구。결과표명，PPY구유교호적열은정성능，기stokes위이위130nm，구유교호적발광특성。전화학분석현시PPY구유교호적전화학환원특성，구유교호적전자전수성，기전자친화능（Ea）위3．35eV，전리능（Lp）위5．97eV，능극（Eg）위2．62eV。
Polypyridine （PPY） was synthesized via the Grignard metathesis method （GRIM） from 2,5 - dibromopyridine. The structure and thermal stability of PPY were characterized by means of infrared absorption spectrometry（IR） and thermogravimetric analysis （TG）, respectively. The photophysical characterization of PPY were studied through the UV- visible spectra（ UV -Vis） and Fluorescence Emission Spectrum（FL）. The results showed that PPY had good thermal stability and fluorescence property, and the stokes shift was 130 nm. The electrochemical property was also measured by cyclic voltammetry. PPY had good reduction characteristics and electron transmission. The electron affinity energy, the ionization energy and the bandgap of PPY were 3.35 eV, 5.97 eV and 2.62 eV, respectively.