Radiation boundary conditions in collisional quenching of fluorescence; determination by frequency-domain fluorometry

Nanda Joshi; Michael L. Johnson; Ignacy Gryczynski; Joseph R. Lakowicz

doi:10.1016/0009-2614(87)85142-4

Radiation boundary conditions in collisional quenching of fluorescence; determination by frequency-domain fluorometry

Nanda Joshi, Michael L. Johnson, Ignacy Gryczynski, Joseph R. Lakowicz

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

54 Scopus citations

Abstract

Quenching of 1,2-benzanthracene (BA) by CBr₄ was studied by frequency-domain fluorometry. The frequency response of the BA emission could not be fit using the Smoluchowski decay law for transient effects in quenching, exp(-t/τ-2bt^{1 2}). However, the data were consistent with the expression for the radiation boundary conditions. We believe these are the first reported data which support the "radiation boundary condition" model for collisional quenching. Our ability to detect the inadequacy of the t^{1 2} model indicates that the frequency-domain method can yield considerable detail about diffusive processes in solution.

Original language	English
Pages (from-to)	200-207
Number of pages	8
Journal	Chemical Physics Letters
Volume	135
Issue number	3
DOIs	https://doi.org/10.1016/0009-2614(87)85142-4
State	Published - 3 Apr 1987

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title = "Radiation boundary conditions in collisional quenching of fluorescence; determination by frequency-domain fluorometry",

abstract = "Quenching of 1,2-benzanthracene (BA) by CBr4 was studied by frequency-domain fluorometry. The frequency response of the BA emission could not be fit using the Smoluchowski decay law for transient effects in quenching, exp(-t/τ-2bt 1 2). However, the data were consistent with the expression for the radiation boundary conditions. We believe these are the first reported data which support the {"}radiation boundary condition{"} model for collisional quenching. Our ability to detect the inadequacy of the t 1 2 model indicates that the frequency-domain method can yield considerable detail about diffusive processes in solution.",

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AU - Joshi, Nanda

AU - Johnson, Michael L.

AU - Gryczynski, Ignacy

AU - Lakowicz, Joseph R.

PY - 1987/4/3

Y1 - 1987/4/3

N2 - Quenching of 1,2-benzanthracene (BA) by CBr4 was studied by frequency-domain fluorometry. The frequency response of the BA emission could not be fit using the Smoluchowski decay law for transient effects in quenching, exp(-t/τ-2bt 1 2). However, the data were consistent with the expression for the radiation boundary conditions. We believe these are the first reported data which support the "radiation boundary condition" model for collisional quenching. Our ability to detect the inadequacy of the t 1 2 model indicates that the frequency-domain method can yield considerable detail about diffusive processes in solution.

AB - Quenching of 1,2-benzanthracene (BA) by CBr4 was studied by frequency-domain fluorometry. The frequency response of the BA emission could not be fit using the Smoluchowski decay law for transient effects in quenching, exp(-t/τ-2bt 1 2). However, the data were consistent with the expression for the radiation boundary conditions. We believe these are the first reported data which support the "radiation boundary condition" model for collisional quenching. Our ability to detect the inadequacy of the t 1 2 model indicates that the frequency-domain method can yield considerable detail about diffusive processes in solution.

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SP - 200

EP - 207

JO - Chemical Physics Letters

JF - Chemical Physics Letters

SN - 0009-2614

IS - 3

ER -

Radiation boundary conditions in collisional quenching of fluorescence; determination by frequency-domain fluorometry

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