Synthesis, Crystal Structure and Spectroscopic Properties of 2,7-bis(3-cyanophenyl)-9,9-diethyl-fluorene

LIU Zhi-peng; LI Xing; JIANG Jing; ZHAO Ya-yun; ZHAO Xiu-hua; CHEN Hong-bing

doi:10.3788/fgxb20133405.0579

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Synthesis, Crystal Structure and Spectroscopic Properties of 2,7-bis(3-cyanophenyl)-9,9-diethyl-fluorene

更新时间：2020-08-12

- Synthesis, Crystal Structure and Spectroscopic Properties of 2,7-bis(3-cyanophenyl)-9,9-diethyl-fluorene
- Chinese Journal of Luminescence Vol. 34, Issue 5, Pages: 579-584(2013)
- 作者机构：
  
  宁波大学材料科学与化学工程学院,浙江宁波,315211
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20133405.0579
  CLC： O625.15+3
- Received：20 January 2013，
  
  Revised：06 April 2013，
  
  Published Online：08 March 2013，
  
  Published：10 May 2013
- 稿件说明：
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刘志鹏, 李星, 江晶, 赵亚云, 赵秀华, 陈红兵. 2,7-二(3-(氰基)苯基)-9,9-二乙基芴的合成、晶体结构及光学性质[J]. 发光学报, 2013,34(5): 579-584

LIU Zhi-peng, LI Xing, JIANG Jing, ZHAO Ya-yun, ZHAO Xiu-hua, CHEN Hong-bing. Synthesis, Crystal Structure and Spectroscopic Properties of 2,7-bis(3-cyanophenyl)-9,9-diethyl-fluorene[J]. Chinese Journal of Luminescence, 2013,34(5): 579-584
刘志鹏, 李星, 江晶, 赵亚云, 赵秀华, 陈红兵. 2,7-二(3-(氰基)苯基)-9,9-二乙基芴的合成、晶体结构及光学性质[J]. 发光学报, 2013,34(5): 579-584 DOI： 10.3788/fgxb20133405.0579.

LIU Zhi-peng, LI Xing, JIANG Jing, ZHAO Ya-yun, ZHAO Xiu-hua, CHEN Hong-bing. Synthesis, Crystal Structure and Spectroscopic Properties of 2,7-bis(3-cyanophenyl)-9,9-diethyl-fluorene[J]. Chinese Journal of Luminescence, 2013,34(5): 579-584 DOI： 10.3788/fgxb20133405.0579.

摘要

合成了一种新型的芴类衍生物2

7-二(3-(氰基)苯基)-9

9-二乙基芴。通过元素分析、红外(IR)、核磁共振(

H NMR)以及X射线单晶衍射对其组成和结构进行了表征。结果表明该化合物属于正交晶系

空间群

晶胞参数:

= 1.380 0(3) nm

=2.230 6(4) nm

=0.726 33(15) nm

= 90

=2.235 8(8) nm

(000)=896

=0.073 mm

-1

=1.013

=0.046 9

=0.104 2。同时

我们对该化合物的紫外-可见吸收光谱和荧光光谱做了研究。在室温下

当激发光波长为330 nm时

该化合物的固态薄膜发射强烈的蓝色荧光

其发射波长为408 nm。此芴类衍生物在CH

溶液中的荧光量子效率为0.64

在固态薄膜中的斯托克斯位移为56 nm。该化合物有望成为一种优良的蓝色发光材料。

Abstract

A new fluorene derivative

7-bis(3-cyanophenyl)-9

9-diethyl-fluorene has been synthesized and characterized by elemental analysis

FT-IR spectra

H NMR and X-ray single crystal diffraction. The compound crystallizes in orthorhombic

space group

Pnma

with

=1.380 0(3)nm

=2.230 6(4) nm

=0.726 33(15) nm

=2.235 8(8) nm

=1.261 g/cm

(MoK

)=0.073 mm

-1

(000)=896

= 1.013

the final

=0.046 9 and

=0.104 2. The UV-Vis absorption and fluorescence spectra of the title compound were investigated. Under excitation of 330 nm at room temperature

the compound showed intense blue fluorescence with an emission peak of 408 nm. The fluorescence quantum yield of the title compound in CH

solution is 0.64 and the Stokes shift between the UV-Vis absorption and fluorescence maxima is 56 nm for the film. This compound may be suitable as a promising candidate for blue-emitting material.

关键词

Keywords

references

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