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Mutual orientation of the n→π* and π → π* transition dipole moments in azo compounds : Determination by light-induced optical anisotropy. / Grebenkin, S. Yu; Syutkin, V. M.; Baranov, Denis S.

In: Journal of Photochemistry and Photobiology A: Chemistry, Vol. 344, 01.07.2017, p. 1-7.

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

Harvard

Grebenkin, SY, Syutkin, VM & Baranov, DS 2017, 'Mutual orientation of the n→π* and π → π* transition dipole moments in azo compounds: Determination by light-induced optical anisotropy', Journal of Photochemistry and Photobiology A: Chemistry, vol. 344, pp. 1-7. https://doi.org/10.1016/j.jphotochem.2017.04.031

APA

Grebenkin, S. Y., Syutkin, V. M., & Baranov, D. S. (2017). Mutual orientation of the n→π* and π → π* transition dipole moments in azo compounds: Determination by light-induced optical anisotropy. Journal of Photochemistry and Photobiology A: Chemistry, 344, 1-7. https://doi.org/10.1016/j.jphotochem.2017.04.031

Vancouver

Grebenkin SY, Syutkin VM, Baranov DS. Mutual orientation of the n→π* and π → π* transition dipole moments in azo compounds: Determination by light-induced optical anisotropy. Journal of Photochemistry and Photobiology A: Chemistry. 2017 Jul 1;344:1-7. doi: 10.1016/j.jphotochem.2017.04.031

Author

Grebenkin, S. Yu ; Syutkin, V. M. ; Baranov, Denis S. / Mutual orientation of the n→π* and π → π* transition dipole moments in azo compounds : Determination by light-induced optical anisotropy. In: Journal of Photochemistry and Photobiology A: Chemistry. 2017 ; Vol. 344. pp. 1-7.

BibTeX

@article{6cb036bbefcd4795846c000b7beef714,
title = "Mutual orientation of the n→π* and π → π* transition dipole moments in azo compounds: Determination by light-induced optical anisotropy",
abstract = "Photonic applications of azo compounds often require to know the polarization of molecular absorption bands. In this study, we demonstrate how the kinetics of light-induced anisotropy can be used to determine the mutual orientation of transition dipole moments pertaining to different absorption bands of an azo compound. The time profiles of light-induced anisotropy of the polymeric films doped with azo compounds p-azotoluene (AT) and 1-naphthyl-p-azo-methoxybenzene (NAMB) are analysed using commonly accepted models of photo-orientation. It is found that under irradiation of the films containing NAMB in the n → π* band of NAMB, the anisotropy level is too low compared to the anisotropy formed under irradiation in the π → π* band. The data are interpreted as demonstrating that the dipole moments of the n → π* and π → π* transitions of the NAMB molecule are not collinear. The angle between them was estimated to be 32.5 ± 5°.",
keywords = "Azotoluene spectra, Optical anisotropy, Polymers, Transition dipole moment, MECHANISM, CIS PHOTOISOMERIZATION, HETEROGENEOUS DYNAMICS, PHOTOORIENTATION, AZO-DYE, MOLECULES, CONTAINING POLYMERS, MATRICES, AZOBENZENE, LIQUID-CRYSTAL SYSTEMS",
author = "Grebenkin, {S. Yu} and Syutkin, {V. M.} and Baranov, {Denis S.}",
year = "2017",
month = jul,
day = "1",
doi = "10.1016/j.jphotochem.2017.04.031",
language = "English",
volume = "344",
pages = "1--7",
journal = "Journal of Photochemistry and Photobiology A: Chemistry",
issn = "1010-6030",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Mutual orientation of the n→π* and π → π* transition dipole moments in azo compounds

T2 - Determination by light-induced optical anisotropy

AU - Grebenkin, S. Yu

AU - Syutkin, V. M.

AU - Baranov, Denis S.

PY - 2017/7/1

Y1 - 2017/7/1

N2 - Photonic applications of azo compounds often require to know the polarization of molecular absorption bands. In this study, we demonstrate how the kinetics of light-induced anisotropy can be used to determine the mutual orientation of transition dipole moments pertaining to different absorption bands of an azo compound. The time profiles of light-induced anisotropy of the polymeric films doped with azo compounds p-azotoluene (AT) and 1-naphthyl-p-azo-methoxybenzene (NAMB) are analysed using commonly accepted models of photo-orientation. It is found that under irradiation of the films containing NAMB in the n → π* band of NAMB, the anisotropy level is too low compared to the anisotropy formed under irradiation in the π → π* band. The data are interpreted as demonstrating that the dipole moments of the n → π* and π → π* transitions of the NAMB molecule are not collinear. The angle between them was estimated to be 32.5 ± 5°.

AB - Photonic applications of azo compounds often require to know the polarization of molecular absorption bands. In this study, we demonstrate how the kinetics of light-induced anisotropy can be used to determine the mutual orientation of transition dipole moments pertaining to different absorption bands of an azo compound. The time profiles of light-induced anisotropy of the polymeric films doped with azo compounds p-azotoluene (AT) and 1-naphthyl-p-azo-methoxybenzene (NAMB) are analysed using commonly accepted models of photo-orientation. It is found that under irradiation of the films containing NAMB in the n → π* band of NAMB, the anisotropy level is too low compared to the anisotropy formed under irradiation in the π → π* band. The data are interpreted as demonstrating that the dipole moments of the n → π* and π → π* transitions of the NAMB molecule are not collinear. The angle between them was estimated to be 32.5 ± 5°.

KW - Azotoluene spectra

KW - Optical anisotropy

KW - Polymers

KW - Transition dipole moment

KW - MECHANISM

KW - CIS PHOTOISOMERIZATION

KW - HETEROGENEOUS DYNAMICS

KW - PHOTOORIENTATION

KW - AZO-DYE

KW - MOLECULES

KW - CONTAINING POLYMERS

KW - MATRICES

KW - AZOBENZENE

KW - LIQUID-CRYSTAL SYSTEMS

UR - http://www.scopus.com/inward/record.url?scp=85018729153&partnerID=8YFLogxK

U2 - 10.1016/j.jphotochem.2017.04.031

DO - 10.1016/j.jphotochem.2017.04.031

M3 - Article

AN - SCOPUS:85018729153

VL - 344

SP - 1

EP - 7

JO - Journal of Photochemistry and Photobiology A: Chemistry

JF - Journal of Photochemistry and Photobiology A: Chemistry

SN - 1010-6030

ER -

ID: 10256587