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Improvement of the fluorescence quantum yield of triphenylene by the rotational effect of 4-(trimethylsilyl)phenyl groups

Soichiro Kyushin 1
Soichiro Kyushin
, 
Hidetoshi Fujii 1
Hidetoshi Fujii
, 
Keisuke Negishi 2
Keisuke Negishi
, 
Hideyuki Matsumoto 1
Hideyuki Matsumoto
10.1016/j.mencom.2022.01.028
Published 2022-01-03
Communication , Volume 32, Issue 1, 87-90
4
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Kyushin S. et al. Improvement of the fluorescence quantum yield of triphenylene by the rotational effect of 4-(trimethylsilyl)phenyl groups // Mendeleev Communications. 2022. Vol. 32. No. 1. pp. 87-90.
GOST all authors (up to 50) Copy
Kyushin S., Fujii H., Negishi K., Matsumoto H. Improvement of the fluorescence quantum yield of triphenylene by the rotational effect of 4-(trimethylsilyl)phenyl groups // Mendeleev Communications. 2022. Vol. 32. No. 1. pp. 87-90.
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TY - JOUR
DO - 10.1016/j.mencom.2022.01.028
UR - https://mendcomm.colab.ws/publications/10.1016/j.mencom.2022.01.028
TI - Improvement of the fluorescence quantum yield of triphenylene by the rotational effect of 4-(trimethylsilyl)phenyl groups
T2 - Mendeleev Communications
AU - Kyushin, Soichiro
AU - Fujii, Hidetoshi
AU - Negishi, Keisuke
AU - Matsumoto, Hideyuki
PY - 2022
DA - 2022/01/03
PB - Mendeleev Communications
SP - 87-90
IS - 1
VL - 32
ER -
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@article{2022_Kyushin,
author = {Soichiro Kyushin and Hidetoshi Fujii and Keisuke Negishi and Hideyuki Matsumoto},
title = {Improvement of the fluorescence quantum yield of triphenylene by the rotational effect of 4-(trimethylsilyl)phenyl groups},
journal = {Mendeleev Communications},
year = {2022},
volume = {32},
publisher = {Mendeleev Communications},
month = {Jan},
url = {https://mendcomm.colab.ws/publications/10.1016/j.mencom.2022.01.028},
number = {1},
pages = {87--90},
doi = {10.1016/j.mencom.2022.01.028}
}
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Cite this
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Kyushin, Soichiro, et al. “Improvement of the fluorescence quantum yield of triphenylene by the rotational effect of 4-(trimethylsilyl)phenyl groups.” Mendeleev Communications, vol. 32, no. 1, Jan. 2022, pp. 87-90. https://mendcomm.colab.ws/publications/10.1016/j.mencom.2022.01.028.

Keywords

4-(trimethylsilyl)phenyl group
fluorescence
fluorescence quantum yield
organosilicon compounds
rotation
Suzuki–Miyaura coupling
transition moment
triphenylene

Abstract

The fluorescence quantum yield of triphenylene is low because the transition moment between the HOMOs and the LUMOs is negligibly small. To improve the fluorescence quantum yield, break of the symmetrical structure of triphenylene is necessary. We found that the rotational effect of the 4-(trimethylsilyl)phenyl groups of 2,3,6,7,10,11-hexakis[4-(trimethylsilyl)phenyl]triphenylene is effective to break the symmetry in spite of the symmetrical structure, leading to improvement of the fluorescence quantum yield.

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