Preparation, Spectral Properties, and Electron Affinity of Bis(thiadiazolo)quinoxaline and Bis(thiadiazolo)phenanthroquinoxaline as n-Type Semiconductors
摘要:
本研究制备了双(噻二唑并)菲醌喔啉和双(噻二唑并)喹喔啉衍生物作为 n 型半导体的新候选材料,并通过光谱和电化学测量研究了它们的电子特性。具有三氟甲基基团的双(噻二唑并)菲醌在有机场效应晶体管中显示出 n 型特性。
Expanded π-Electron Systems, Tri(phenanthro)hexaazatriphenylenes and Tri(phenanthrolino)hexaazatriphenylenes, That Are Self-Assembled To Form One-Dimensional Aggregates
摘要:
This paper reports the self-assembling and electrochemical nature of hexaazatriphenylene-based electron-deficient heteroaromatics with an expanded pi-electron system The tri(phenanthro)hexaazatriphenylenes (TPHAT-Cs) and tri(phenanthrolino)hexaazatriphenylenes (TPHAT-Ns) were prepared by condensation reactions or the corresponding phenanthrenequinonones and phenanthrolinediones respectively. with hexaaminobenzene Their election affinity was indicated from cyclic voltammetry measurements. In which the first reduction potentials were evaluated at mound -1 7 V (vs Fc/Fe+) in dichloromethane In nonpolar and polar solvents and in the film state. the TPHAT-Cs and TPHAT-Ns formed one-dimensional aggregates with an H-type stacking mode. In the MALDI-TOF mass spectra significant peaks were seen at several multiples of the parent ion up to tell;liner aggregates The NMR spectra indicated a line-broadening effect due to the aggregation The UV-vis and fluorescence spectra showed a concentration dependence which is. attributed to a dynamic exchange between the monomer and aggregate species The older of the aggregative nature was estimated from the concentration dependence and the fluorescence quantum yield By replacement of the peripheral aromatic moieties instead of the phenanthiene (TPHAT-Cs) with the phenanthroline (TPHAT-Ns). the aggregative nature was enhanced
Preparation, Spectral Properties, and Electron Affinity of Bis(thiadiazolo)quinoxaline and Bis(thiadiazolo)phenanthroquinoxaline as n-Type Semiconductors
作者:Tsutomu Ishi-i、Taro Nakanishi、Yuuki Teshima、Takeshi Yasuda、Liyuan Han
DOI:10.1246/cl.2011.1252
日期:2011.11.5
Bis(thiadiazolo)phenanthroquinoxaline and bis(thiadiazolo)quinoxaline derivatives were prepared as a new candidate of n-type semiconductors and their electronic properties were investigated by spectroscopic and electrochemical measurements. The bis(thiadiazolo)phenanthroquinoxaline having the trifluoromethyl groups indicates n-type characteristic in an organic field-effect transistor.
本研究制备了双(噻二唑并)菲醌喔啉和双(噻二唑并)喹喔啉衍生物作为 n 型半导体的新候选材料,并通过光谱和电化学测量研究了它们的电子特性。具有三氟甲基基团的双(噻二唑并)菲醌在有机场效应晶体管中显示出 n 型特性。
Expanded π-Electron Systems, Tri(phenanthro)hexaazatriphenylenes and Tri(phenanthrolino)hexaazatriphenylenes, That Are Self-Assembled To Form One-Dimensional Aggregates
This paper reports the self-assembling and electrochemical nature of hexaazatriphenylene-based electron-deficient heteroaromatics with an expanded pi-electron system The tri(phenanthro)hexaazatriphenylenes (TPHAT-Cs) and tri(phenanthrolino)hexaazatriphenylenes (TPHAT-Ns) were prepared by condensation reactions or the corresponding phenanthrenequinonones and phenanthrolinediones respectively. with hexaaminobenzene Their election affinity was indicated from cyclic voltammetry measurements. In which the first reduction potentials were evaluated at mound -1 7 V (vs Fc/Fe+) in dichloromethane In nonpolar and polar solvents and in the film state. the TPHAT-Cs and TPHAT-Ns formed one-dimensional aggregates with an H-type stacking mode. In the MALDI-TOF mass spectra significant peaks were seen at several multiples of the parent ion up to tell;liner aggregates The NMR spectra indicated a line-broadening effect due to the aggregation The UV-vis and fluorescence spectra showed a concentration dependence which is. attributed to a dynamic exchange between the monomer and aggregate species The older of the aggregative nature was estimated from the concentration dependence and the fluorescence quantum yield By replacement of the peripheral aromatic moieties instead of the phenanthiene (TPHAT-Cs) with the phenanthroline (TPHAT-Ns). the aggregative nature was enhanced