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Article

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

1
The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, Thailand
2
Center for Biocomposites and Biomaterials Processing, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON M5S 3B3, Canada
3
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)
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 copper coordination complexes; 3D network complexes; crystal structure; electronic structure; luminescence
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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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