Synthesis, characterization and electroluminescence of B(III) compounds: BPh2(2-(2-quinolyl)naphtho[b]imidazolato) and BPh2(2-(2-quinolyl)benzimidazolato)
摘要:
Two novel luminescent boron compounds, BPh2(2.-(2-quinolyl)naphtho[b]imidazolato) (1) and BPh2(2-(2-quinolyi)benzimidazolato) (2), have been synthesized by the reactions of triphenylboron with appropriate ligands, 2-(2-quinolyl)naphtho[b]imidazole (QNI) and 2(2-quinolyl)benzimidazole (QBI), respectively. The structure of 1 was determined by single crystal X-ray diffraction, while 2 by spectroscopic methods. The structure of 1 reveals that the boron center is four coordinated. Several types of OLED possessing different colors were fabricated by using 1 as emitter. For the three-layer OLED with the structure ITO/NPB/2/Alq(3)/Mg-Ag, an emission band covering the whole visible region from 400 to 750 nm with the maximum brightness of 320 cd/m(2) was observed, indicating a perfect white light OLED (CIE = 0.33, 0.37). Compounds 1 and 2 form a new family of organometallic emitting materials which could be of interest for practical application. (c) 2006 Elsevier B.V. All rights reserved.
A new imidazolylquinoline for organic thin film transistor
作者:Tsun-Ren Chen、Anchi Yeh、Jhy-Der Chen
DOI:10.1016/j.tetlet.2004.12.139
日期:2005.2
A new active electronic material, 2-(naphtho[3,4]imidazol-2-yl)quinoline (NIQ), 1, has been synthesized and fully characterized. This compound exhibits field-effect carrier mobility and behaves as a p-type semiconductor (mu(FET) = 0.148 cm(2)/V s at V-DS = 10 V). NIQ and its related imidazolylquinoline compounds may have possible applications as active materials in organic thin film transistors. (C) 2005 Elsevier Ltd. All rights reserved.