Cyclic intramolecular proton transfer dynamics of polyquinoline

Hyunung Yu; Seung Do Hong; Sehoon Kim; Soo Young Park; Du Jeon Jang

doi:10.1080/10587250290089149

Cyclic intramolecular proton transfer dynamics of polyquinoline

Hyunung Yu, Seung Do Hong, Sehoon Kim, Soo Young Park, Du Jeon Jang

Research output: Contribution to journal › Conference article › peer-review

Abstract

The excited-state intramolecular proton transfer and following reverse ground-state proton transfer of photoluminescent polyquinoline are investigated by measuring temperature-dependent fluorescence and transient absorption kinetic profiles. The transfer at the lowest excited singlet state takes place within 6 ps via a preexisting intramolecular hydrogen bond with a negligibly small activation energy. On the other hand, the reverse transfer at the ground state occurs in the time scale of 10 us. The rapid proton transfer cycle of the polymer is of great interest due to its implications for optoelectronic devices such as dye lasers.

Original language	English
Pages (from-to)	305-308
Number of pages	4
Journal	Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume	377
DOIs	https://doi.org/10.1080/10587250290089149
Publication status	Published - 2002
Externally published	Yes
Event	Proceedings of the Korea-Japan Joint Forum on Organic Materials for Electronics and Photonics (KJF2001) - Seoul, Korea, Republic of Duration: 2001 Sept 25 → 2001 Sept 27

Keywords

Excited-state proton transfer
Photoluminescence
Polyquinoline
Reverse ground-state proton transfer
Transient absorption

ASJC Scopus subject areas

Condensed Matter Physics

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10.1080/10587250290089149

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@article{50e166e820e34b20a2654e1922b76e09,

title = "Cyclic intramolecular proton transfer dynamics of polyquinoline",

abstract = "The excited-state intramolecular proton transfer and following reverse ground-state proton transfer of photoluminescent polyquinoline are investigated by measuring temperature-dependent fluorescence and transient absorption kinetic profiles. The transfer at the lowest excited singlet state takes place within 6 ps via a preexisting intramolecular hydrogen bond with a negligibly small activation energy. On the other hand, the reverse transfer at the ground state occurs in the time scale of 10 us. The rapid proton transfer cycle of the polymer is of great interest due to its implications for optoelectronic devices such as dye lasers.",

keywords = "Excited-state proton transfer, Photoluminescence, Polyquinoline, Reverse ground-state proton transfer, Transient absorption",

author = "Hyunung Yu and Hong, {Seung Do} and Sehoon Kim and Park, {Soo Young} and Jang, {Du Jeon}",

year = "2002",

doi = "10.1080/10587250290089149",

language = "English",

volume = "377",

pages = "305--308",

journal = "Molecular Crystals and Liquid Crystals",

issn = "1542-1406",

publisher = "Taylor and Francis Ltd.",

note = "Proceedings of the Korea-Japan Joint Forum on Organic Materials for Electronics and Photonics (KJF2001) ; Conference date: 25-09-2001 Through 27-09-2001",

}

TY - JOUR

T1 - Cyclic intramolecular proton transfer dynamics of polyquinoline

AU - Yu, Hyunung

AU - Hong, Seung Do

AU - Kim, Sehoon

AU - Park, Soo Young

AU - Jang, Du Jeon

PY - 2002

Y1 - 2002

N2 - The excited-state intramolecular proton transfer and following reverse ground-state proton transfer of photoluminescent polyquinoline are investigated by measuring temperature-dependent fluorescence and transient absorption kinetic profiles. The transfer at the lowest excited singlet state takes place within 6 ps via a preexisting intramolecular hydrogen bond with a negligibly small activation energy. On the other hand, the reverse transfer at the ground state occurs in the time scale of 10 us. The rapid proton transfer cycle of the polymer is of great interest due to its implications for optoelectronic devices such as dye lasers.

AB - The excited-state intramolecular proton transfer and following reverse ground-state proton transfer of photoluminescent polyquinoline are investigated by measuring temperature-dependent fluorescence and transient absorption kinetic profiles. The transfer at the lowest excited singlet state takes place within 6 ps via a preexisting intramolecular hydrogen bond with a negligibly small activation energy. On the other hand, the reverse transfer at the ground state occurs in the time scale of 10 us. The rapid proton transfer cycle of the polymer is of great interest due to its implications for optoelectronic devices such as dye lasers.

KW - Excited-state proton transfer

KW - Photoluminescence

KW - Polyquinoline

KW - Reverse ground-state proton transfer

KW - Transient absorption

UR - http://www.scopus.com/inward/record.url?scp=2942649876&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=2942649876&partnerID=8YFLogxK

U2 - 10.1080/10587250290089149

DO - 10.1080/10587250290089149

M3 - Conference article

AN - SCOPUS:2942649876

SN - 1542-1406

VL - 377

SP - 305

EP - 308

JO - Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals

T2 - Proceedings of the Korea-Japan Joint Forum on Organic Materials for Electronics and Photonics (KJF2001)

Y2 - 25 September 2001 through 27 September 2001

ER -

Cyclic intramolecular proton transfer dynamics of polyquinoline

Abstract

Keywords

ASJC Scopus subject areas

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