A three-coordinate cuprous complex exhibiting both photochromic and fluorescent sensing properties, and some TD-DFT calculations

Jia, Yifan; Song, Li; Xu, Wenfang; Jin, Hongxiao; Zhu, Yuying; Lai, Juanhua; Shen, Hangyan; Chai, Wenxiang

doi:10.1016/j.molstruc.2023.136134

Cited by 5 publications

(1 citation statement)

References 62 publications

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“…CuI is a wide bandgap semiconductor (3.1 eV) which makes it an attractive component of optoelectronics, such as solar cells, photodetectors, and light-emitting diodes (LEDs) ( RUSOP et al, 2004 ; Sankapal et al, 2004 ; Wang et al, 2017 ; Yin et al, 2021 ; Vora-ud et al, 2022 ). As well, CuI readily reacts with volatile organic compounds and may act as a reversible sensor for the detection of gases and monitoring temperature and pressure ( Safko et al, 2012 ; Kondo et al, 2020 ; Dai et al, 2023 ; Jia et al, 2023 ).…”

Section: Introductionmentioning

confidence: 99%

Photoluminescent copper(I) iodide alkylpyridine thin films as sensors for volatile halogenated compounds

Jamshidi,

Bouheriche,

Gardner

2023

Front. Chem.

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The paper presents the fabrication and characterization of [CuI(L)]n thin films, where L represents various alkylpyridine ligands including 4-methylpyridine, 3-methylpyridine, 2-methylpyridine, 4-tbutylpyridine, 3,4-dimethylpyridine, and 3,5-dimethylpyridine. The thin films were synthesized by exposing the corresponding ligands to CuI thin films through vapor deposition. The coordination reactions occurring on the films were investigated using PXRD and time-dependent photoluminescence spectroscopy, and a comparison was made between the structures of the thin films and the corresponding powder phases. The films showed primarly blue emission (λem = 457–515 nm) and polymeric structures with excited state lifetimes ranging from 0.6 to 5.5 μs. Significantly, the studied compounds exhibited fast reversible luminescence quenching when exposed to vapors of dichloromethane and dibromomethane (15 and 30 min respectively), and the luminescence was restored upon re-exposure to the alkylpyridine ligand (after 20 min). These findings indicate that these thin films hold promise for applications as sensors (with sensitive and reversible detection capability) for volatile halogen-based compounds (VHC).

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Section: Introductionmentioning

confidence: 99%

Photoluminescent copper(I) iodide alkylpyridine thin films as sensors for volatile halogenated compounds

Jamshidi,

Bouheriche,

Gardner

2023

Front. Chem.

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Heteroleptic Cu(I) complex with vapochromism and its application as electrochromic material

Kharabe,

Ghosh,

Pandey

et al. 2024

Applied Organom Chemis

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Cu(I) complexes have garnered substantial attention in recent years because of their intriguing photophysical properties and their applications in different fields. Herein, we have reported a new four‐coordinated heteroleptic Cu(I) complex using dicnq, a 1,10‐phenanthroline‐based cyno‐substituted ligand, and Xantphos, a bulky as well as rigid chelating diphosphine ligand. The synthesized complex is characterized by multinuclear NMR and HRMS and described as [Cu (Xantphos)(dicnq)]PF6 (1). Complex 1 exhibits absorption within the range of 380–500 nm and emits around 700 nm, attributed to the metal‐to‐ligand charge transfer transition. Theoretical calculations suggest that the HOMO is predominantly located on the Cu(I) center, whereas LUMO is associated with the dicnq ligand. Further, 1 was found to show vapochromic behavior and blue‐shifted emission was observed in the presence of solvent vapors which can show π–π interaction with dicnq. Notably, the complex demonstrates electrochromic activity, prompting the fabrication of a device (ITO/P3HT/Cu complex/ITO) for an in‐depth exploration of its electrochromic properties. The working potential range for the device was found to be ±3 V. On and Off states show the device has an impressive contrast ratio of ~40% and 38% at 520 and 800 nm, respectively. In addition to this, the device shows rapid coloration and bleaching times of 0.8 and 0.5 s, respectively. In terms of contrast, switching speed, stability, and efficiency values at two different wavelengths, the device shows good electrochromic results.

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Bright insights: Examining fluorescence behavior using 5,7‐dibromo‐8‐hydroxyquinoline in organic–inorganic hybrid materials

Bogdan,

Sierański,

Świątkowski

et al. 2024

Applied Organom Chemis

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Expanding on prior research with 8‐hydroxyquinoline (8hq) derivatives, this study investigates 5,7‐dibromo‐8‐hydroxyquinoline (8hqBr2) as a ligand in organic–inorganic hybrid materials (OIHMs). A series of 19 compounds and two of its salts were synthesized, employing d‐ and p‐block metal halides to explore the effect of solid‐state supramolecular structures on emission properties. Through the use of density functional theory (DFT), this work emphasizes the critical role of the bromine position within the ligand, contrasting with its effect when located exclusively in halogenometallate anions. The findings reveal that emission is profoundly influenced by π–π stacking, anion‐π interactions, and the configuration of metal cations and bromine substituents. This study not only provides insights into the specific impact of bromine positioning in 8hqBr2 on fluorescence but also contributes to the development of advanced emitters for optoelectronics and sensing, enhancing the understanding of fluorescence modulation in 8‐hydroxyquinoline‐based OIHMs.

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A three-coordinate cuprous complex exhibiting both photochromic and fluorescent sensing properties, and some TD-DFT calculations

Cited by 5 publications

References 62 publications

Photoluminescent copper(I) iodide alkylpyridine thin films as sensors for volatile halogenated compounds

Photoluminescent copper(I) iodide alkylpyridine thin films as sensors for volatile halogenated compounds

Heteroleptic Cu(I) complex with vapochromism and its application as electrochromic material

Bright insights: Examining fluorescence behavior using 5,7‐dibromo‐8‐hydroxyquinoline in organic–inorganic hybrid materials

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