Ultrafast photophysical properties of dimethyl amino styryl pyridine acetonitrile

Lei Li; Chaoqun Ma; Huangmei Zhou; Jiao Gu; Chun Zhu; Zhuowei Zhu; Hui Gao; Hui Wu; Yamin Wu; Guoqing Chen; Sanjun Zhang

doi:10.1016/j.cplett.2019.05.002

Ultrafast photophysical properties of dimethyl amino styryl pyridine acetonitrile

Lei Li
, Chaoqun Ma
, Huangmei Zhou
, Jiao Gu
, Chun Zhu
, Zhuowei Zhu
, Hui Gao
, Hui Wu
, Yamin Wu
, Guoqing Chen^*
, Sanjun Zhang

^*Corresponding author for this work

Institute for Advanced Study in Precision Spectroscopy

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

The ultrafast photophysical properties of dimethyl amino styryl pyridine acetonitrile (DASPA)were studied by the femtosecond transient absorption spectra (TA). The results show no evidence of state-to-state relaxation. The excited energy is released by the interaction between DASPA and solvent molecules. The solvation relaxation in protic solutions is faster than that in aprotic solutions, which results in a rapid decay of fluorescence. An energy diagram is finally proposed to interpret the relaxation mechanism.

Original language	English
Pages (from-to)	132-135
Number of pages	4
Journal	Chemical Physics Letters
Volume	728
DOIs	https://doi.org/10.1016/j.cplett.2019.05.002
State	Published - Aug 2019

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@article{c7d3665cd123426ca98f724b626ce502,

title = "Ultrafast photophysical properties of dimethyl amino styryl pyridine acetonitrile",

abstract = "The ultrafast photophysical properties of dimethyl amino styryl pyridine acetonitrile (DASPA)were studied by the femtosecond transient absorption spectra (TA). The results show no evidence of state-to-state relaxation. The excited energy is released by the interaction between DASPA and solvent molecules. The solvation relaxation in protic solutions is faster than that in aprotic solutions, which results in a rapid decay of fluorescence. An energy diagram is finally proposed to interpret the relaxation mechanism.",

author = "Lei Li and Chaoqun Ma and Huangmei Zhou and Jiao Gu and Chun Zhu and Zhuowei Zhu and Hui Gao and Hui Wu and Yamin Wu and Guoqing Chen and Sanjun Zhang",

note = "Publisher Copyright: {\textcopyright} 2019",

year = "2019",

month = aug,

doi = "10.1016/j.cplett.2019.05.002",

language = "英语",

volume = "728",

pages = "132--135",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Ultrafast photophysical properties of dimethyl amino styryl pyridine acetonitrile

AU - Li, Lei

AU - Ma, Chaoqun

AU - Zhou, Huangmei

AU - Gu, Jiao

AU - Zhu, Chun

AU - Zhu, Zhuowei

AU - Gao, Hui

AU - Wu, Hui

AU - Wu, Yamin

AU - Chen, Guoqing

AU - Zhang, Sanjun

PY - 2019/8

Y1 - 2019/8

N2 - The ultrafast photophysical properties of dimethyl amino styryl pyridine acetonitrile (DASPA)were studied by the femtosecond transient absorption spectra (TA). The results show no evidence of state-to-state relaxation. The excited energy is released by the interaction between DASPA and solvent molecules. The solvation relaxation in protic solutions is faster than that in aprotic solutions, which results in a rapid decay of fluorescence. An energy diagram is finally proposed to interpret the relaxation mechanism.

AB - The ultrafast photophysical properties of dimethyl amino styryl pyridine acetonitrile (DASPA)were studied by the femtosecond transient absorption spectra (TA). The results show no evidence of state-to-state relaxation. The excited energy is released by the interaction between DASPA and solvent molecules. The solvation relaxation in protic solutions is faster than that in aprotic solutions, which results in a rapid decay of fluorescence. An energy diagram is finally proposed to interpret the relaxation mechanism.

UR - https://www.scopus.com/pages/publications/85065203120

U2 - 10.1016/j.cplett.2019.05.002

DO - 10.1016/j.cplett.2019.05.002

M3 - 文章

AN - SCOPUS:85065203120

SN - 0009-2614

VL - 728

SP - 132

EP - 135

JO - Chemical Physics Letters

JF - Chemical Physics Letters

ER -

Ultrafast photophysical properties of dimethyl amino styryl pyridine acetonitrile

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