Spectral Studies of H-Aggregate of D-π-A Molecule

Si Guang Chen; Yue Shun Jiang; Ran Lu; Wen Sheng Yang; Ji Hua Yang; Tie Jin Li; Zu Liang Du

Spectral Studies of H-Aggregate of D-π-A Molecule

Si Guang Chen, Yue Shun Jiang, Ran Lu, Wen Sheng Yang, Ji Hua Yang, Tie Jin Li, Zu Liang Du

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

Abstract

D-π-A molecules bearing strong electron donor and acceptor, 5-(4-N,N-dimethyl amino-benzylidene)-(1H, 3H)-2,4,6-pyrimidinetrione(AB₁) and 5-(4-N, N-dioctadecylaminobenzylidene)-(1H, 3H)-2,4,6-pyrimidinetrione(AB₁₈) were synthesized and their spectral properties were investigated. For AB₁ and AB₁₈ their UV-visible absorption spectra in cyclohexane and surface photovoltage spectra show peaks at 450 nm due to the formation of H-aggregate, which underwent a blue-shift about 30 nm than that of monomer intramolecular charge transfer(ICT) band in chloroform. The fluorescence emission band of excimer of H-aggregate in solid and at a high concentration in chloroform solution occurs at 620 nm and near 610 nm, respectively. The band at 620 nm underwent a red-shift about 3 000 cm^-1 than that of monomer. In addition, intermolecular π-π interactions of such D-π-A molecules possesing strong electron donor and acceptor are discussed.

Original language	English (US)
Pages (from-to)	248
Number of pages	1
Journal	Kao Teng Hsueh Hsiao Hua Heush Hsueh Pao/ Chemical Journal of Chinese Universities
Volume	22
Issue number	2
State	Published - Feb 10 2001
Externally published	Yes

Keywords

D-π-A molecules
Excimer
Fluorescence emission spectra
H-aggregate
ICT excited state

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@article{e12035e3388c477eb6094841fad7fc71,

title = "Spectral Studies of H-Aggregate of D-π-A Molecule",

abstract = "D-π-A molecules bearing strong electron donor and acceptor, 5-(4-N,N-dimethyl amino-benzylidene)-(1H, 3H)-2,4,6-pyrimidinetrione(AB1) and 5-(4-N, N-dioctadecylaminobenzylidene)-(1H, 3H)-2,4,6-pyrimidinetrione(AB18) were synthesized and their spectral properties were investigated. For AB1 and AB18 their UV-visible absorption spectra in cyclohexane and surface photovoltage spectra show peaks at 450 nm due to the formation of H-aggregate, which underwent a blue-shift about 30 nm than that of monomer intramolecular charge transfer(ICT) band in chloroform. The fluorescence emission band of excimer of H-aggregate in solid and at a high concentration in chloroform solution occurs at 620 nm and near 610 nm, respectively. The band at 620 nm underwent a red-shift about 3 000 cm-1 than that of monomer. In addition, intermolecular π-π interactions of such D-π-A molecules possesing strong electron donor and acceptor are discussed.",

keywords = "D-π-A molecules, Excimer, Fluorescence emission spectra, H-aggregate, ICT excited state",

author = "Chen, {Si Guang} and Jiang, {Yue Shun} and Ran Lu and Yang, {Wen Sheng} and Yang, {Ji Hua} and Li, {Tie Jin} and Du, {Zu Liang}",

year = "2001",

month = feb,

day = "10",

language = "English (US)",

volume = "22",

pages = "248",

journal = "Kao Teng Hsueh Hsiao Hua Heush Hsueh Pao/ Chemical Journal of Chinese Universities",

issn = "0251-0790",

publisher = "Higher Education Press Limited Company",

number = "2",

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TY - JOUR

T1 - Spectral Studies of H-Aggregate of D-π-A Molecule

AU - Chen, Si Guang

AU - Jiang, Yue Shun

AU - Lu, Ran

AU - Yang, Wen Sheng

AU - Yang, Ji Hua

AU - Li, Tie Jin

AU - Du, Zu Liang

PY - 2001/2/10

Y1 - 2001/2/10

N2 - D-π-A molecules bearing strong electron donor and acceptor, 5-(4-N,N-dimethyl amino-benzylidene)-(1H, 3H)-2,4,6-pyrimidinetrione(AB1) and 5-(4-N, N-dioctadecylaminobenzylidene)-(1H, 3H)-2,4,6-pyrimidinetrione(AB18) were synthesized and their spectral properties were investigated. For AB1 and AB18 their UV-visible absorption spectra in cyclohexane and surface photovoltage spectra show peaks at 450 nm due to the formation of H-aggregate, which underwent a blue-shift about 30 nm than that of monomer intramolecular charge transfer(ICT) band in chloroform. The fluorescence emission band of excimer of H-aggregate in solid and at a high concentration in chloroform solution occurs at 620 nm and near 610 nm, respectively. The band at 620 nm underwent a red-shift about 3 000 cm-1 than that of monomer. In addition, intermolecular π-π interactions of such D-π-A molecules possesing strong electron donor and acceptor are discussed.

AB - D-π-A molecules bearing strong electron donor and acceptor, 5-(4-N,N-dimethyl amino-benzylidene)-(1H, 3H)-2,4,6-pyrimidinetrione(AB1) and 5-(4-N, N-dioctadecylaminobenzylidene)-(1H, 3H)-2,4,6-pyrimidinetrione(AB18) were synthesized and their spectral properties were investigated. For AB1 and AB18 their UV-visible absorption spectra in cyclohexane and surface photovoltage spectra show peaks at 450 nm due to the formation of H-aggregate, which underwent a blue-shift about 30 nm than that of monomer intramolecular charge transfer(ICT) band in chloroform. The fluorescence emission band of excimer of H-aggregate in solid and at a high concentration in chloroform solution occurs at 620 nm and near 610 nm, respectively. The band at 620 nm underwent a red-shift about 3 000 cm-1 than that of monomer. In addition, intermolecular π-π interactions of such D-π-A molecules possesing strong electron donor and acceptor are discussed.

KW - D-π-A molecules

KW - Excimer

KW - Fluorescence emission spectra

KW - H-aggregate

KW - ICT excited state

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AN - SCOPUS:0346490396

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JO - Kao Teng Hsueh Hsiao Hua Heush Hsueh Pao/ Chemical Journal of Chinese Universities

JF - Kao Teng Hsueh Hsiao Hua Heush Hsueh Pao/ Chemical Journal of Chinese Universities

IS - 2

ER -

Spectral Studies of H-Aggregate of D-π-A Molecule

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