Synthesis and Photophysical Properties of a Series of Dimeric Indium Quinolinates

Sang Woo Kwak; Ju Hyun Hong; Sang Hoon Lee; Min Kim; Yongseog Chung; Kang Mun Lee; Youngjo Kim; Myung Hwan Park

doi:10.3390/molecules26010034

Molecules (Dec 2020)

Synthesis and Photophysical Properties of a Series of Dimeric Indium Quinolinates

Sang Woo Kwak,
Ju Hyun Hong,
Sang Hoon Lee,
Min Kim,
Yongseog Chung,
Kang Mun Lee,
Youngjo Kim,
Myung Hwan Park

Affiliations

Sang Woo Kwak: Department of Chemistry, Chungbuk National University, Cheongju 28644, Korea
Ju Hyun Hong: Department of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, Korea
Sang Hoon Lee: Department of Chemistry, Chungbuk National University, Cheongju 28644, Korea
Min Kim: Department of Chemistry, Chungbuk National University, Cheongju 28644, Korea
Yongseog Chung: Department of Chemistry, Chungbuk National University, Cheongju 28644, Korea
Kang Mun Lee: Department of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, Korea
Youngjo Kim: Department of Chemistry, Chungbuk National University, Cheongju 28644, Korea
Myung Hwan Park: Department of Chemistry Education, Chungbuk National University, Cheongju 28644, Korea

DOI: https://doi.org/10.3390/molecules26010034
Journal volume & issue: Vol. 26, no. 1
p. 34

Abstract

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A novel class of quinolinol-based dimeric indium complexes (1–6) was synthesized and characterized using 1H and 13C(1H) NMR spectroscopy and elemental analysis. Compounds 1–6 exhibited typical low-energy absorption bands assignable to quinolinol-centered π–π* charge transfer (CT) transition. The emission spectra of 1–6 exhibited slight bathochromic shifts with increasing solvent polarity (p-xylene PL) of compounds 1 (11.2% in THF and 17.2% in film) and 4 (17.8% in THF and 36.2% in film) with methyl substituents at the C5 position of the quinoline moieties were higher than those of the indium complexes with other substituents.

Published in Molecules

ISSN: 1420-3049 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry: Organic chemistry
Website: http://www.mdpi.com/journal/molecules

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