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1. 吉林大学 化学学院,吉林 长春,130026
2. 吉林大学 物理学院,吉林 长春,130021
3. 吉林大学 电子科学与工程学院,吉林 长春,130012
收稿日期:2013-06-24,
修回日期:2013-07-24,
纸质出版日期:2013-09-10
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王亚峰, 王岩, 孙琳, 王文全, 张晓安, 王海宇. 具有开闭环性质的荧光素与螺吡喃双官能团融合分子的超快光谱研究[J]. 发光学报, 2013,34(9): 1118-1121
WANG Ya-feng, WANG Yan, SUN Lin, WANG Wen-quan, ZHANG Xiao-an, WANG Hai-yu. Study on The Properties of Bifunctional Fused Molecule Consisted of Spiropyran and Fluorescein Units Using Ultrafast Spectroscopy[J]. Chinese Journal of Luminescence, 2013,34(9): 1118-1121
王亚峰, 王岩, 孙琳, 王文全, 张晓安, 王海宇. 具有开闭环性质的荧光素与螺吡喃双官能团融合分子的超快光谱研究[J]. 发光学报, 2013,34(9): 1118-1121 DOI: 10.3788/fgxb20133409.1118.
WANG Ya-feng, WANG Yan, SUN Lin, WANG Wen-quan, ZHANG Xiao-an, WANG Hai-yu. Study on The Properties of Bifunctional Fused Molecule Consisted of Spiropyran and Fluorescein Units Using Ultrafast Spectroscopy[J]. Chinese Journal of Luminescence, 2013,34(9): 1118-1121 DOI: 10.3788/fgxb20133409.1118.
螺吡喃分子有两种同分异构体
一种是无色闭环的螺吡喃结构
另一种是有色开环的部化青结构。在螺吡喃分子上共轭桥连荧光素基团
构成一种双官能团融合分子
可以加强螺吡喃分子的荧光发射。这种分子可以形成很多构型构像
而只有两者完全共轭连接的构型构像才能增加分子的荧光强度。为了证明这种完全共轭构型构像的存在
本文利用时间分辨超快光谱技术来研究这种双官能团融合分子的性质。通过测试其瞬态吸收光谱以及稳态荧光的激发谱
发现在这种融合分子中
荧光素基团对螺吡喃的荧光起到了一定的增强作用
说明在这种融合分子中存在这种双官能团完全共轭的构型构像。
The spiropyran has two tautomers
the ring-closed spiropyran form (SP) and the ring-opened merocyanine form (ME). In order to get more applications
the fluorescence of spiropyran needs to be enhanced. To produce a fused bifunctional molecule with full conjugated configuration and conformation
we synthesized a fused molecule with both functional groups of spiropyran and fluorescein. There exist many kinds of configuration and conformation in these molecules
but only the conjugated one makes sense. Femtosecond transient absorption ultrafast spectroscopy is used to characterize this fused molecule. The experiments demonstrate that there is a part of fully conjugated configuration and conformation
which can enhance the fluorescence intensity.
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