The Effect of Solvent Environment on Molecular Electronic Transition Moment Directions: Symmetri Lowering in Pyrene

F. W. Langkilde; E. W. Thulstrup; J. Michl

doi:10.1063/1.445213

The Effect of Solvent Environment on Molecular Electronic Transition Moment Directions: Symmetri Lowering in Pyrene

F. W. Langkilde, E. W. Thulstrup, J. Michl

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Abstract

Measurements of polarized fluorescence and phosphorescence of pyrene, 2‐fluoropyrene, and 2‐methylpyrene in 3‐methylpentane glass at 77 K reveal significant differences among the three molecules. These are interpreted in terms of solvent‐induced mixing of the Lb and La states. It is proposed that such symmetry‐lowering effects of the solvent environment may well be important contributors to the often observed discrepancies between the theoretical limiting values of polarization ratios and the values actually observed.

Original language	English
Journal	Journal of Chemical Physics
Volume	78
Issue number	6
ISSN	0021-9606
DOIs	https://doi.org/10.1063/1.445213
Publication status	Published - 1983

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title = "The Effect of Solvent Environment on Molecular Electronic Transition Moment Directions: Symmetri Lowering in Pyrene",

abstract = "Measurements of polarized fluorescence and phosphorescence of pyrene, 2‐fluoropyrene, and 2‐methylpyrene in 3‐methylpentane glass at 77 K reveal significant differences among the three molecules. These are interpreted in terms of solvent‐induced mixing of the Lb and La states. It is proposed that such symmetry‐lowering effects of the solvent environment may well be important contributors to the often observed discrepancies between the theoretical limiting values of polarization ratios and the values actually observed.",

author = "Langkilde, {F. W.} and Thulstrup, {E. W.} and J. Michl",

year = "1983",

doi = "10.1063/1.445213",

language = "English",

volume = "78",

journal = "Journal of Chemical Physics",

issn = "0021-9606",

publisher = "American Institute of Physics",

number = "6",

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T1 - The Effect of Solvent Environment on Molecular Electronic Transition Moment Directions

T2 - Symmetri Lowering in Pyrene

AU - Langkilde, F. W.

AU - Thulstrup, E. W.

AU - Michl, J.

PY - 1983

Y1 - 1983

N2 - Measurements of polarized fluorescence and phosphorescence of pyrene, 2‐fluoropyrene, and 2‐methylpyrene in 3‐methylpentane glass at 77 K reveal significant differences among the three molecules. These are interpreted in terms of solvent‐induced mixing of the Lb and La states. It is proposed that such symmetry‐lowering effects of the solvent environment may well be important contributors to the often observed discrepancies between the theoretical limiting values of polarization ratios and the values actually observed.

AB - Measurements of polarized fluorescence and phosphorescence of pyrene, 2‐fluoropyrene, and 2‐methylpyrene in 3‐methylpentane glass at 77 K reveal significant differences among the three molecules. These are interpreted in terms of solvent‐induced mixing of the Lb and La states. It is proposed that such symmetry‐lowering effects of the solvent environment may well be important contributors to the often observed discrepancies between the theoretical limiting values of polarization ratios and the values actually observed.

U2 - 10.1063/1.445213

DO - 10.1063/1.445213

M3 - Journal article

SN - 0021-9606

VL - 78

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

IS - 6

ER -

The Effect of Solvent Environment on Molecular Electronic Transition Moment Directions: Symmetri Lowering in Pyrene

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