Photostability of a series of two-photon absorbing flourene derivatives

Kevin D. Belfield; Mykhailo V. Bondar; Olga V. Przhonska; Katherine J. Schafer

doi:10.1016/S1010-6030(03)00393-9

Photostability of a series of two-photon absorbing flourene derivatives

Kevin D. Belfield, Mykhailo V. Bondar, Olga V. Przhonska, Katherine J. Schafer

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

38 Scopus citations

Abstract

The photochemical stability of a series of two-photon absorbing (TPA) fluorene derivatives was investigated in air- and N₂-saturated acetonitrile (ACN) at room temperature. The quantum yields of the photoreactions, Φ, were determined at various concentrations of the fluorene derivatives, oxygen concentration of the solvent, and irradiation wavelength. The absorption and fluorescence spectra of the photoproducts, corresponding to different excitation conditions, were analyzed. Photooxidation and electron transfer processes are proposed as photobleaching mechanisms for the fluorene derivatives in ACN. The relatively low photochemical quantum yields (Φ∼10^-4) make the derivatives particularly promising for linear and nonlinear optical applications.

Original language	English (US)
Pages (from-to)	489-496
Number of pages	8
Journal	Journal of Photochemistry and Photobiology A: Chemistry
Volume	162
Issue number	2-3
DOIs	https://doi.org/10.1016/S1010-6030(03)00393-9
State	Published - Mar 15 2004
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Chemistry
General Chemical Engineering
General Physics and Astronomy

Keywords

Fluorene derivatives
Photochemical quantum yield
Photooxidation
Photostability

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10.1016/S1010-6030(03)00393-9

Cite this

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title = "Photostability of a series of two-photon absorbing flourene derivatives",

abstract = "The photochemical stability of a series of two-photon absorbing (TPA) fluorene derivatives was investigated in air- and N2-saturated acetonitrile (ACN) at room temperature. The quantum yields of the photoreactions, Φ, were determined at various concentrations of the fluorene derivatives, oxygen concentration of the solvent, and irradiation wavelength. The absorption and fluorescence spectra of the photoproducts, corresponding to different excitation conditions, were analyzed. Photooxidation and electron transfer processes are proposed as photobleaching mechanisms for the fluorene derivatives in ACN. The relatively low photochemical quantum yields (Φ∼10-4) make the derivatives particularly promising for linear and nonlinear optical applications.",

keywords = "Fluorene derivatives, Photochemical quantum yield, Photooxidation, Photostability",

author = "Belfield, {Kevin D.} and Bondar, {Mykhailo V.} and Przhonska, {Olga V.} and Schafer, {Katherine J.}",

note = "Funding Information: We wish to acknowledge the donors of The Petroleum Research Fund of the American Chemical Society, the Research Corporation Cottrell College Science program, the National Research Council COBASE award, the National Science Foundation, and the University of Central Florida Presidential Initiative for Major Research Equipment for partial support of this work. ",

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doi = "10.1016/S1010-6030(03)00393-9",

language = "English (US)",

volume = "162",

pages = "489--496",

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publisher = "Elsevier B.V.",

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T1 - Photostability of a series of two-photon absorbing flourene derivatives

AU - Belfield, Kevin D.

AU - Bondar, Mykhailo V.

AU - Przhonska, Olga V.

AU - Schafer, Katherine J.

N1 - Funding Information: We wish to acknowledge the donors of The Petroleum Research Fund of the American Chemical Society, the Research Corporation Cottrell College Science program, the National Research Council COBASE award, the National Science Foundation, and the University of Central Florida Presidential Initiative for Major Research Equipment for partial support of this work.

PY - 2004/3/15

Y1 - 2004/3/15

N2 - The photochemical stability of a series of two-photon absorbing (TPA) fluorene derivatives was investigated in air- and N2-saturated acetonitrile (ACN) at room temperature. The quantum yields of the photoreactions, Φ, were determined at various concentrations of the fluorene derivatives, oxygen concentration of the solvent, and irradiation wavelength. The absorption and fluorescence spectra of the photoproducts, corresponding to different excitation conditions, were analyzed. Photooxidation and electron transfer processes are proposed as photobleaching mechanisms for the fluorene derivatives in ACN. The relatively low photochemical quantum yields (Φ∼10-4) make the derivatives particularly promising for linear and nonlinear optical applications.

AB - The photochemical stability of a series of two-photon absorbing (TPA) fluorene derivatives was investigated in air- and N2-saturated acetonitrile (ACN) at room temperature. The quantum yields of the photoreactions, Φ, were determined at various concentrations of the fluorene derivatives, oxygen concentration of the solvent, and irradiation wavelength. The absorption and fluorescence spectra of the photoproducts, corresponding to different excitation conditions, were analyzed. Photooxidation and electron transfer processes are proposed as photobleaching mechanisms for the fluorene derivatives in ACN. The relatively low photochemical quantum yields (Φ∼10-4) make the derivatives particularly promising for linear and nonlinear optical applications.

KW - Fluorene derivatives

KW - Photochemical quantum yield

KW - Photooxidation

KW - Photostability

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JO - Journal of Photochemistry and Photobiology A: Chemistry

JF - Journal of Photochemistry and Photobiology A: Chemistry

IS - 2-3

ER -

Photostability of a series of two-photon absorbing flourene derivatives

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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