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Pan D, Don Y, Lu Y, Xiao G, Chi H, Hu Z. AIE fluorescent probe based on tetraphenylethylene and morpholine-thiourea structures for detection of HClO. Anal Chim Acta 2022; 1235:340559. [DOI: 10.1016/j.aca.2022.340559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 10/09/2022] [Accepted: 10/24/2022] [Indexed: 11/26/2022]
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Carmona-Espíndola J, Gázquez JL. Charge transfer excitations and constrained density functional theory. Theor Chem Acc 2021. [DOI: 10.1007/s00214-021-02860-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Colas K, Doloczki S, Posada Urrutia M, Dyrager C. Prevalent Bioimaging Scaffolds: Synthesis, Photophysical Properties and Applications. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001658] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kilian Colas
- Department of Chemistry – BMC Uppsala University Box 576 75123 Uppsala Sweden
| | - Susanne Doloczki
- Department of Chemistry – BMC Uppsala University Box 576 75123 Uppsala Sweden
| | | | - Christine Dyrager
- Department of Chemistry – BMC Uppsala University Box 576 75123 Uppsala Sweden
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Orozco-Valencia U, Gázquez JL, Vela A. Global and local charge transfer in electron donor-acceptor complexes. J Mol Model 2018; 24:250. [PMID: 30141089 DOI: 10.1007/s00894-018-3772-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 07/27/2018] [Indexed: 10/28/2022]
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McFadden PD, Frederick K, Argüello LA, Zhang Y, Vandiver P, Odegaard N, Loy DA. UV Fluorescent Epoxy Adhesives from Noncovalent and Covalent Incorporation of Coumarin Dyes. ACS APPLIED MATERIALS & INTERFACES 2017; 9:10061-10068. [PMID: 28233981 DOI: 10.1021/acsami.6b13218] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Epoxies are commonly used in art conservation as adhesives for artifact reconstruction and repair. However, with the development of colorless epoxies, it has become more difficult to detect repair work. Fluorescent epoxies would allow for easy detection of the epoxy joints by simple visual inspection under UV light while remaining unnoticeable under normal display lighting. Coumarins are natural dyes that can be added in very small amounts to make thermosets fluoresce. Depending on the functionality of the coumarin used, the dye may be physically encapsulated in the cross-linked polymer or it may be bound to the polymer through covalent bonds. In this paper, we examine the efficacy of coumarin (1) and coumarin 480 (2) as physically encapsulated dyes and 7-hydroxycoumarin (3) and 7-glycidyloxycoumarin (4) as covalently bound dyes in a commercial epoxy thermoset, Epo-Tek 301. All four dyes could be used to make the epoxy fluorescent, but coumarins 1 and 2 slightly reduced the lap shear strength of the thermoset and could be extracted with solvent. In contrast, coumarins 3 and 4 had little effect on the mechanical properties of the epoxy and only minute amounts could be extracted.
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Affiliation(s)
- Peter D McFadden
- Department of Chemistry and Biochemistry, ‡Materials Science and Engineering Department, and §Arizona State Museum, The University of Arizona , Tucson, Arizona 85721, United States
| | - Kevin Frederick
- Department of Chemistry and Biochemistry, ‡Materials Science and Engineering Department, and §Arizona State Museum, The University of Arizona , Tucson, Arizona 85721, United States
| | - Liliana A Argüello
- Department of Chemistry and Biochemistry, ‡Materials Science and Engineering Department, and §Arizona State Museum, The University of Arizona , Tucson, Arizona 85721, United States
| | - Yizheng Zhang
- Department of Chemistry and Biochemistry, ‡Materials Science and Engineering Department, and §Arizona State Museum, The University of Arizona , Tucson, Arizona 85721, United States
| | - Pamela Vandiver
- Department of Chemistry and Biochemistry, ‡Materials Science and Engineering Department, and §Arizona State Museum, The University of Arizona , Tucson, Arizona 85721, United States
| | - Nancy Odegaard
- Department of Chemistry and Biochemistry, ‡Materials Science and Engineering Department, and §Arizona State Museum, The University of Arizona , Tucson, Arizona 85721, United States
| | - Douglas A Loy
- Department of Chemistry and Biochemistry, ‡Materials Science and Engineering Department, and §Arizona State Museum, The University of Arizona , Tucson, Arizona 85721, United States
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