A Single Crystal Hybrid Ligand Framework of Copper(II) with Stable Intrinsic Blue-Light Luminescence in Aqueous Solution

A Single Crystal Hybrid Ligand Framework of Copper(II) with Stable Intrinsic Blue-Light Luminescence in Aqueous Solution

Single-crystal solid–liquid dual-phase hybrid organic–inorganic ligand frameworks with reversible sensing response facilitated by external stimuli have received significant attention in recent years. This report presents a significant leap in designing electronic structures that display reversible d...

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Main Authors: Suwitra Charoensuk, Jing Tan, Mohini Sain, Hathaikarn Manuspiya
Format: Article
Language:English
Published: MDPI AG 2021-09-01
Series:Nanomaterials
Subjects:
copper coordination complexes
3D network complexes
crystal structure
electronic structure
luminescence
Online Access:https://www.mdpi.com/2079-4991/11/9/2281
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spelling doaj-f0175609c33b457190e876878df1e8d92021-09-26T00:48:31ZengMDPI AGNanomaterials2079-49912021-09-01112281228110.3390/nano11092281A Single Crystal Hybrid Ligand Framework of Copper(II) with Stable Intrinsic Blue-Light Luminescence in Aqueous SolutionSuwitra Charoensuk0Jing Tan1Mohini Sain2Hathaikarn Manuspiya3The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, ThailandCenter for Biocomposites and Biomaterials Processing, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON M5S 3B3, CanadaCenter for Biocomposites and Biomaterials Processing, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON M5S 3B3, CanadaThe Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, ThailandSingle-crystal solid–liquid dual-phase hybrid organic–inorganic ligand frameworks with reversible sensing response facilitated by external stimuli have received significant attention in recent years. This report presents a significant leap in designing electronic structures that display reversible dual-phase photoluminescence properties from single-crystal hybrid ligand frameworks. Three-dimensional Cu(C<sub>3</sub>N<sub>2</sub>H<sub>4</sub>)<sub>4</sub>Cl<sub>2</sub> complex frameworks were formed through the intermolecular hydrogen bonding and π⋯π stacking supramolecular interactions. The absorption band peaks at 627 nm were assigned to d–d transition showing 10Dq = 15,949 cm<sup>−1</sup> and crystal field stabilization energy (CFSE) = 0.6 × 10Dq = 114.4 kJmol<sup>−1</sup>, while the ligand-to-metal charge transfer (LMCT) of complexes was displayed at 292 nm. The intense luminescence band results from LMCT present at 397 nm. Considering its structure, air stability, framework forming and stable luminescence in aqueous solution, the Cu(C<sub>3</sub>N<sub>2</sub>H<sub>4</sub>)<sub>4</sub>Cl<sub>2</sub> complex shows potential for luminescence Cu-based sensors using emission intensity to detect heavy metal ion species.https://www.mdpi.com/2079-4991/11/9/2281copper coordination complexes3D network complexescrystal structureelectronic structureluminescence
collection DOAJ
language English
format Article
sources DOAJ
author Suwitra Charoensuk
Jing Tan
Mohini Sain
Hathaikarn Manuspiya
spellingShingle Suwitra Charoensuk
Jing Tan
Mohini Sain
Hathaikarn Manuspiya
A Single Crystal Hybrid Ligand Framework of Copper(II) with Stable Intrinsic Blue-Light Luminescence in Aqueous Solution
Nanomaterials
copper coordination complexes
3D network complexes
crystal structure
electronic structure
luminescence
author_facet Suwitra Charoensuk
Jing Tan
Mohini Sain
Hathaikarn Manuspiya
author_sort Suwitra Charoensuk
title A Single Crystal Hybrid Ligand Framework of Copper(II) with Stable Intrinsic Blue-Light Luminescence in Aqueous Solution
title_short A Single Crystal Hybrid Ligand Framework of Copper(II) with Stable Intrinsic Blue-Light Luminescence in Aqueous Solution
title_full A Single Crystal Hybrid Ligand Framework of Copper(II) with Stable Intrinsic Blue-Light Luminescence in Aqueous Solution
title_fullStr A Single Crystal Hybrid Ligand Framework of Copper(II) with Stable Intrinsic Blue-Light Luminescence in Aqueous Solution
title_full_unstemmed A Single Crystal Hybrid Ligand Framework of Copper(II) with Stable Intrinsic Blue-Light Luminescence in Aqueous Solution
title_sort single crystal hybrid ligand framework of copper(ii) with stable intrinsic blue-light luminescence in aqueous solution
publisher MDPI AG
series Nanomaterials
issn 2079-4991
publishDate 2021-09-01
description Single-crystal solid–liquid dual-phase hybrid organic–inorganic ligand frameworks with reversible sensing response facilitated by external stimuli have received significant attention in recent years. This report presents a significant leap in designing electronic structures that display reversible dual-phase photoluminescence properties from single-crystal hybrid ligand frameworks. Three-dimensional Cu(C<sub>3</sub>N<sub>2</sub>H<sub>4</sub>)<sub>4</sub>Cl<sub>2</sub> complex frameworks were formed through the intermolecular hydrogen bonding and π⋯π stacking supramolecular interactions. The absorption band peaks at 627 nm were assigned to d–d transition showing 10Dq = 15,949 cm<sup>−1</sup> and crystal field stabilization energy (CFSE) = 0.6 × 10Dq = 114.4 kJmol<sup>−1</sup>, while the ligand-to-metal charge transfer (LMCT) of complexes was displayed at 292 nm. The intense luminescence band results from LMCT present at 397 nm. Considering its structure, air stability, framework forming and stable luminescence in aqueous solution, the Cu(C<sub>3</sub>N<sub>2</sub>H<sub>4</sub>)<sub>4</sub>Cl<sub>2</sub> complex shows potential for luminescence Cu-based sensors using emission intensity to detect heavy metal ion species.
topic copper coordination complexes
3D network complexes
crystal structure
electronic structure
luminescence
url https://www.mdpi.com/2079-4991/11/9/2281
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