Theoretical Investigation on Novel Donor-acceptor Materials with Organic Light-emitting Diodes Based on α-Cinnamoyl Cyclic Ketene Dithioacetals

WANG Xiao-feng; LI Hui-xue; YUAN Kun; DONG Xiao-ning; LI Xiao-dong; ZHU Yuan-cheng

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Theoretical Investigation on Novel Donor-acceptor Materials with Organic Light-emitting Diodes Based on α-Cinnamoyl Cyclic Ketene Dithioacetals

paper | 更新时间：2020-08-12

- Theoretical Investigation on Novel Donor-acceptor Materials with Organic Light-emitting Diodes Based on α-Cinnamoyl Cyclic Ketene Dithioacetals
- Chinese Journal of Luminescence Vol. 30, Issue 5, Pages: 649-657(2009)
- 作者机构：
  
  天水师范学院生命科学与化学学院, 甘肃天水 741001
- 作者简介：
- 基金信息：
- DOI：
  CLC： O482.31;O621.13;O621.22
- Received：23 December 2008，
  
  Revised：02 January 1900，
  
  Published Online：30 October 2009，
  
  Published：30 October 2009
- 稿件说明：
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WANG Xiao-feng, LI Hui-xue, YUAN Kun, et al. Theoretical Investigation on Novel Donor-acceptor Materials with Organic Light-emitting Diodes Based on α-Cinnamoyl Cyclic Ketene Dithioacetals[J]. Chinese journal of luminescence, 2009, 30(5): 649-657.
DOI：

WANG Xiao-feng, LI Hui-xue, YUAN Kun, et al. Theoretical Investigation on Novel Donor-acceptor Materials with Organic Light-emitting Diodes Based on α-Cinnamoyl Cyclic Ketene Dithioacetals[J]. Chinese journal of luminescence, 2009, 30(5): 649-657. DOI：

摘要

用密度泛函理论B3LYP方法对四种新型D-π-A分子(PKD

NKD

TKD和CKD)进行基态几何构型全优化

计算分子的电离势IP和电子亲和势EA等相关能量。用含时密度泛函(TDDFT)方法计算吸收光谱

用单组态相互作用方法(CIS)优化四种化合物分子的S

激发态结构

分析其能量与发射光谱的关系。根据化合物组成的不同恰当地选择泛函计算分子的发射光谱

并与实验结果对照表明

计算结果比较可靠。

Abstract

Donor-acceptor (D-A) organic molecule is one of the most important conjugated organic materials

which have attracted much academic and technological research interests. In these compounds the electron-donating and electron-accepting groups are connected through a conjugated linker. Tuning different donor moiety or acceptor moiety in a D-A molecule can modify its physical and chemical properties. A novel family of α-cinnamoyl cyclic ketene dithioacetals (CCKDA) derivatives were synthesized with asymmetrical structure (D-A) in a simple and low-cost way by Claisen-Schmidt condensation reactions between the donor-containing aldehydes and the electron-withdrawing by Peng

Sun

et al

. Four novel donor-acceptor molecules:(E)-1-(1

3-dithiolan-2-ylidene)-4-(10-ethyl-10H-phenothiazin-3-yl)but-3-en-2-one

(E)-4- -1-(1

3-dithiolan-2-ylidene)but-3-en-2-one

(E)-4- -1-(1

3-dithiolan-2-ylidene)but-3-en-2-one

(E)-4-(9-butyl-9H-carbazol-3-yl)-1-(1

3-dithiolan-2-ylidene)but-3-en-2-one were studied at the B3LYP/6-31G(d) level of density functional theory (DFT) and ab initio-HF. Adiabatic and vertical electron affinities

adiabatic and vertical ionizing potential were obtained. Absorption spectra were obtained by time-dependent density functional theory(TD-DFT). CIS/6-31G(d) method was used to calculate the first singlet excited state(S

) of the four compounds and to analyze the relationship between their energies and emission spectra. The emission spectra were calculated in solvent and compared with experimental data. According to the different compounds the exchange-correlation(XC) functions were chosen properly

and the reliable emission spectra for PKD

NKD

TKD

CKD were obtained.

关键词

Keywords

references

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