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Nawee Kungwan. Excited state intramolecular proton transfer in Pi-Expanded systems of 10-Hydroxybenzo[h]quinoline. (). King Mongkut's University of Technology North Bangkok. Central Library. : , 2017.
Excited state intramolecular proton transfer in Pi-Expanded systems of 10-Hydroxybenzo[h]quinoline
Name: Warinthon Chansen
Organization :
Chiang Mai University. Faculty of Science
Name: Nawee Kungwan
Organization :
Chiang Mai University. Faculty of Science
Email :
naweekung@gmail.com
Abstract:
Molecules having excited-state intramolecularproton transfer (ESIPT) have emerged
as a new potential fluorescent probes in chemical and biological systems. In this study, the
ESIPT reactions of 10-hydroxybenzo[h]quinoline (HBQ) and its derivatives with different
types of π- expansion were investigated using a hybrid density-functional theory (DFT) and its
time-dependent DFT (TD-DFT) at B3LYP with 6-311+G(d) basis set. The π-expansion of the
HBQ chromophore was achieved by adding a benzene ring at various positions nearby the
pyridine ring, led to compounds possessing diverse photophysical properties. The absorption
and emission spectra of these molecules were studied using frontier molecular orbitals. Their
hydrogen bonding strengths in the excited-state were revealed by the simulated IR spectra.
Moreover, the possibility of ESIPT process was carried out by scanning the potential energy
curve of proton transfer coordinate (O‒H∙∙∙N). As a result, both absorption and emission spectra
of HBQ derivatives are red-shifted compared to that of HBQ. In addition, the ESIPT occurrence
of selected HBQ derivatives is more favorable or comparable to that of HBQ due to the π-
expanded substituent.
King Mongkut's University of Technology North Bangkok. Central Library
Address:
BANGKOK
Email:
library@kmutnb.ac.th
Created:
2017
Modified:
2562-08-15
Issued:
2019-08-15
บทความ/Article
application/pdf
BibliograpyCitation :
In Chemical Society of Thailand under the Patronage of Her Royal Hghness Princess Chulabhorn Mahidol and King Mongkut's University of Technology North Bangkok Faculty of Applied Science. Pure and Applied Chemistry International Conference (PACCON 2017) (pp.860-865). Bangkok : Chemical Society of Thailand under the Patronage of Her Royal Hghness Princess Chulabhorn Mahidol
eng
©copyrights King Mongkut's University of Technology North Bangkok
RightsAccess:
ใช้เวลา
0.031724 วินาที
Warinthon Chansen
| Title | Contributor | Type |
|---|---|---|
| Excited state intramolecular proton transfer in Pi-Expanded systems of 10-Hydroxybenzo[h]quinoline
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Warinthon Chansen;Nawee Kungwan | บทความ/Article | |
| Theoretical study on influence of geometries controlling over the excited-state intramolecular proton transfer of 10-hydroxybenzo[h]quinoline and its derivatives as fluorescent probe
มหาวิทยาลัยเชียงใหม่ Warinthon Chansen | Supawadee Namuangruk Nawee Kungwan Chanisorn Ngaojampa | วิทยานิพนธ์/Thesis |
Nawee Kungwan