A Series of Quinolinol-Based Indium Luminophores: A Rational Design Approach for Manipulating Photophysical Properties

Sang Woo Kwak; Moon Bae Kim; Heuiseok Shin; Ji Hye Lee; Hyonseok Hwang; Ji Yeon Ryu; Junseong Lee; Min Kim; Yongseog Chung; Joong Chul Choe; Youngjo Kim; Kang Mun Lee; Myung Hwan Park

doi:10.1021/acs.inorgchem.9b00802

A Series of Quinolinol-Based Indium Luminophores: A Rational Design Approach for Manipulating Photophysical Properties

Sang Woo Kwak, Moon Bae Kim, Heuiseok Shin, Ji Hye Lee, Hyonseok Hwang, Ji Yeon Ryu, Junseong Lee, Min Kim, Yongseog Chung, Joong Chul Choe, Youngjo Kim, Kang Mun Lee, Myung Hwan Park

Department of Chemistry

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12 Scopus citations

Abstract

An approach to the design of a series of quinolinol-based indium complexes that can exhibit different optical properties is proposed. Mono-incorporated (Inq₁ and InMeq₁), bis-incorporated (InMeq₂), and tris-incorporated (Inq₃ and InMeq₃) indium quinolinate complexes have been prepared. These complexes have also been characterized by X-ray crystallography. The photophysical properties of these complexes have also been examined by a combination of experimental and theoretical techniques. The indium complexes with a single quinolinol ligand (Inq₁ and InMeq₁) showed higher quantum efficiency than those with two or three quinolinate ligands; in particular, InMeq₁ exhibited the highest quantum yield [φ_PL = 59% in poly(methyl methacrylate) film]. The insights into the nature of these findings were obtained by the sequential synthesis of the quinolinol-based indium luminophores and a detailed investigation of their structural stability.

Original language	English
Pages (from-to)	8056-8063
Number of pages	8
Journal	Inorganic Chemistry
Volume	58
Issue number	12
DOIs	https://doi.org/10.1021/acs.inorgchem.9b00802
State	Published - 17 Jun 2019

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title = "A Series of Quinolinol-Based Indium Luminophores: A Rational Design Approach for Manipulating Photophysical Properties",

abstract = "An approach to the design of a series of quinolinol-based indium complexes that can exhibit different optical properties is proposed. Mono-incorporated (Inq1 and InMeq1), bis-incorporated (InMeq2), and tris-incorporated (Inq3 and InMeq3) indium quinolinate complexes have been prepared. These complexes have also been characterized by X-ray crystallography. The photophysical properties of these complexes have also been examined by a combination of experimental and theoretical techniques. The indium complexes with a single quinolinol ligand (Inq1 and InMeq1) showed higher quantum efficiency than those with two or three quinolinate ligands; in particular, InMeq1 exhibited the highest quantum yield [φPL = 59% in poly(methyl methacrylate) film]. The insights into the nature of these findings were obtained by the sequential synthesis of the quinolinol-based indium luminophores and a detailed investigation of their structural stability.",

author = "Kwak, {Sang Woo} and Kim, {Moon Bae} and Heuiseok Shin and Lee, {Ji Hye} and Hyonseok Hwang and Ryu, {Ji Yeon} and Junseong Lee and Min Kim and Yongseog Chung and Choe, {Joong Chul} and Youngjo Kim and Lee, {Kang Mun} and Park, {Myung Hwan}",

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year = "2019",

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doi = "10.1021/acs.inorgchem.9b00802",

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T1 - A Series of Quinolinol-Based Indium Luminophores

T2 - A Rational Design Approach for Manipulating Photophysical Properties

AU - Kwak, Sang Woo

AU - Kim, Moon Bae

AU - Shin, Heuiseok

AU - Lee, Ji Hye

AU - Hwang, Hyonseok

AU - Ryu, Ji Yeon

AU - Lee, Junseong

AU - Kim, Min

AU - Chung, Yongseog

AU - Choe, Joong Chul

AU - Kim, Youngjo

AU - Lee, Kang Mun

AU - Park, Myung Hwan

PY - 2019/6/17

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N2 - An approach to the design of a series of quinolinol-based indium complexes that can exhibit different optical properties is proposed. Mono-incorporated (Inq1 and InMeq1), bis-incorporated (InMeq2), and tris-incorporated (Inq3 and InMeq3) indium quinolinate complexes have been prepared. These complexes have also been characterized by X-ray crystallography. The photophysical properties of these complexes have also been examined by a combination of experimental and theoretical techniques. The indium complexes with a single quinolinol ligand (Inq1 and InMeq1) showed higher quantum efficiency than those with two or three quinolinate ligands; in particular, InMeq1 exhibited the highest quantum yield [φPL = 59% in poly(methyl methacrylate) film]. The insights into the nature of these findings were obtained by the sequential synthesis of the quinolinol-based indium luminophores and a detailed investigation of their structural stability.

AB - An approach to the design of a series of quinolinol-based indium complexes that can exhibit different optical properties is proposed. Mono-incorporated (Inq1 and InMeq1), bis-incorporated (InMeq2), and tris-incorporated (Inq3 and InMeq3) indium quinolinate complexes have been prepared. These complexes have also been characterized by X-ray crystallography. The photophysical properties of these complexes have also been examined by a combination of experimental and theoretical techniques. The indium complexes with a single quinolinol ligand (Inq1 and InMeq1) showed higher quantum efficiency than those with two or three quinolinate ligands; in particular, InMeq1 exhibited the highest quantum yield [φPL = 59% in poly(methyl methacrylate) film]. The insights into the nature of these findings were obtained by the sequential synthesis of the quinolinol-based indium luminophores and a detailed investigation of their structural stability.

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DO - 10.1021/acs.inorgchem.9b00802

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SN - 0020-1669

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EP - 8063

JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 12

ER -

A Series of Quinolinol-Based Indium Luminophores: A Rational Design Approach for Manipulating Photophysical Properties

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