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

Center for Biocomposites and Biomaterials Processing, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON M5S 3B3, Canada

Center of Excellence in Petrochemical and Materials Technology, Bangkok 10330, Thailand

Authors to whom correspondence should be addressed.

Academic Editors: Sotirios Baskoutas and Marcin Runowski

Nanomaterials 2021, 11(9), 2281; https://doi.org/10.3390/nano11092281

Received: 30 July 2021 / Revised: 25 August 2021 / Accepted: 26 August 2021 / Published: 2 September 2021

(This article belongs to the Section Inorganic Materials and Metal-Organic Frameworks)

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Abstract

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(C₃N₂H₄)₄Cl₂ 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⁻¹ and crystal field stabilization energy (CFSE) = 0.6 × 10Dq = 114.4 kJmol⁻¹, 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(C₃N₂H₄)₄Cl₂ complex shows potential for luminescence Cu-based sensors using emission intensity to detect heavy metal ion species. View Full-Text

Keywords: copper coordination complexes; 3D network complexes; crystal structure; electronic structure; luminescence

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Charoensuk, S.; Tan, J.; Sain, M.; Manuspiya, H. A Single Crystal Hybrid Ligand Framework of Copper(II) with Stable Intrinsic Blue-Light Luminescence in Aqueous Solution. Nanomaterials 2021, 11, 2281. https://doi.org/10.3390/nano11092281

AMA Style

Charoensuk S, Tan J, Sain M, Manuspiya H. A Single Crystal Hybrid Ligand Framework of Copper(II) with Stable Intrinsic Blue-Light Luminescence in Aqueous Solution. Nanomaterials. 2021; 11(9):2281. https://doi.org/10.3390/nano11092281

Chicago/Turabian Style

Charoensuk, Suwitra, Jing Tan, Mohini Sain, and Hathaikarn Manuspiya. 2021. "A Single Crystal Hybrid Ligand Framework of Copper(II) with Stable Intrinsic Blue-Light Luminescence in Aqueous Solution" Nanomaterials 11, no. 9: 2281. https://doi.org/10.3390/nano11092281

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

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