Study on photophysical properties of intramolecular charge transfer (ICT) compound: 4-(diphenylamino)biphenyl-4′-boronic acid

Yue Hong Pang; Shao Min Shuang; Ricky M S WONG; Zhong Hui Li; Chuan Dong

doi:10.1016/j.jphotochem.2004.08.001

Study on photophysical properties of intramolecular charge transfer (ICT) compound: 4-(diphenylamino)biphenyl-4′-boronic acid

Yue Hong Pang, Shao Min Shuang^*, Ricky M S WONG, Zhong Hui Li, Chuan Dong

^*Corresponding author for this work

Department of Chemistry

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

24 Citations (Scopus)

Abstract

A new compound 4-(diphenylamino) biphenyl-4′-boronic acid (DBBA) was synthesized. The optical properties including fluorescence quantum yields and change in the dipole moment in various solvents at room temperature were characterized by the absorption and steady-state fluorescence technique. The emission wavelength of DBBA was very sensitive to the polarity of solvents. The magnitude of change in the dipole moment was calculated based on the Lippert-Mataga equation. DBBA has an increase of dipole moment of 4.9 D units on excitation to the lowest singlet state. A high fluorescence quantum yields (φ_f) and short fluorescence decay times (τ_f) were determined in all solvents tested. The bathochromic shift of the emission spectra and the increase in the excited state dipole moment occurred. These gave the evidence about the intramolecular charge transfer (ICT) character in the emitting singlet state of DBBA.

Original language	English
Pages (from-to)	15-19
Number of pages	5
Journal	Journal of Photochemistry and Photobiology A: Chemistry
Volume	170
Issue number	1
DOIs	https://doi.org/10.1016/j.jphotochem.2004.08.001
Publication status	Published - 28 Feb 2005

Scopus Subject Areas

Chemistry(all)
Chemical Engineering(all)
Physics and Astronomy(all)

User-Defined Keywords

Dipole moment
Fluorescence
Intramolecular charge transfer

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10.1016/j.jphotochem.2004.08.001

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title = "Study on photophysical properties of intramolecular charge transfer (ICT) compound: 4-(diphenylamino)biphenyl-4′-boronic acid",

abstract = "A new compound 4-(diphenylamino) biphenyl-4′-boronic acid (DBBA) was synthesized. The optical properties including fluorescence quantum yields and change in the dipole moment in various solvents at room temperature were characterized by the absorption and steady-state fluorescence technique. The emission wavelength of DBBA was very sensitive to the polarity of solvents. The magnitude of change in the dipole moment was calculated based on the Lippert-Mataga equation. DBBA has an increase of dipole moment of 4.9 D units on excitation to the lowest singlet state. A high fluorescence quantum yields (φf) and short fluorescence decay times (τf) were determined in all solvents tested. The bathochromic shift of the emission spectra and the increase in the excited state dipole moment occurred. These gave the evidence about the intramolecular charge transfer (ICT) character in the emitting singlet state of DBBA.",

keywords = "Dipole moment, Fluorescence, Intramolecular charge transfer",

author = "Pang, {Yue Hong} and Shuang, {Shao Min} and WONG, {Ricky M S} and Li, {Zhong Hui} and Chuan Dong",

note = "Funding Information: This project gets the supports of the National Science Foundation of China (NNSFC: 20172035 and 20275022). Meanwhile, it was also supported by the National Education Committee Foundation for the Outstanding Younger Teachers and the Foundation of Shanxi Province. All the authors express their deep thanks. ",

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doi = "10.1016/j.jphotochem.2004.08.001",

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T2 - 4-(diphenylamino)biphenyl-4′-boronic acid

AU - Pang, Yue Hong

AU - Shuang, Shao Min

AU - WONG, Ricky M S

AU - Li, Zhong Hui

AU - Dong, Chuan

N1 - Funding Information: This project gets the supports of the National Science Foundation of China (NNSFC: 20172035 and 20275022). Meanwhile, it was also supported by the National Education Committee Foundation for the Outstanding Younger Teachers and the Foundation of Shanxi Province. All the authors express their deep thanks.

PY - 2005/2/28

Y1 - 2005/2/28

N2 - A new compound 4-(diphenylamino) biphenyl-4′-boronic acid (DBBA) was synthesized. The optical properties including fluorescence quantum yields and change in the dipole moment in various solvents at room temperature were characterized by the absorption and steady-state fluorescence technique. The emission wavelength of DBBA was very sensitive to the polarity of solvents. The magnitude of change in the dipole moment was calculated based on the Lippert-Mataga equation. DBBA has an increase of dipole moment of 4.9 D units on excitation to the lowest singlet state. A high fluorescence quantum yields (φf) and short fluorescence decay times (τf) were determined in all solvents tested. The bathochromic shift of the emission spectra and the increase in the excited state dipole moment occurred. These gave the evidence about the intramolecular charge transfer (ICT) character in the emitting singlet state of DBBA.

AB - A new compound 4-(diphenylamino) biphenyl-4′-boronic acid (DBBA) was synthesized. The optical properties including fluorescence quantum yields and change in the dipole moment in various solvents at room temperature were characterized by the absorption and steady-state fluorescence technique. The emission wavelength of DBBA was very sensitive to the polarity of solvents. The magnitude of change in the dipole moment was calculated based on the Lippert-Mataga equation. DBBA has an increase of dipole moment of 4.9 D units on excitation to the lowest singlet state. A high fluorescence quantum yields (φf) and short fluorescence decay times (τf) were determined in all solvents tested. The bathochromic shift of the emission spectra and the increase in the excited state dipole moment occurred. These gave the evidence about the intramolecular charge transfer (ICT) character in the emitting singlet state of DBBA.

KW - Dipole moment

KW - Fluorescence

KW - Intramolecular charge transfer

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U2 - 10.1016/j.jphotochem.2004.08.001

DO - 10.1016/j.jphotochem.2004.08.001

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AN - SCOPUS:13544263493

SN - 1010-6030

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SP - 15

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JO - Journal of Photochemistry and Photobiology A: Chemistry

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Study on photophysical properties of intramolecular charge transfer (ICT) compound: 4-(diphenylamino)biphenyl-4′-boronic acid

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