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Ullah Z, Sonawane PM, Nguyen TS, Garai M, Churchill DG, Yavuz CT. Bisphenol-based cyanide sensing: Selectivity, reversibility, facile synthesis, bilateral "OFF-ON" fluorescence, C 2ν structural and conformational analysis. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 259:119881. [PMID: 33971439 DOI: 10.1016/j.saa.2021.119881] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 04/18/2021] [Accepted: 04/22/2021] [Indexed: 06/12/2023]
Abstract
A structurally characterized novel dual-pocketed tetra-conjugated bisphenol-based chromophore (fluorescence = 652 nm) was synthesized in gram scale in ~90% yield from its tetraaldehyde. Highly selective, naked-eye detection of CN- (DMSO/H2O) was confirmed by interferent testing. A detection limit of 0.38 µM, within the permissible limit of CN- concentration in drinking water was achieved as mandated by WHO. The "reversibility" study shows potential applicability and reusability of Sen. Moreover, cost-effective and on-site interfaces, application tools such as fabricated cotton swabs, plastic Petri dishes, and filter papers further demonstrated the specific selectivity of Sen for the toxic CN-. In addition, an easily available and handy smartphone-assisted "Color Picker" app was utilized to help estimate the concentration of CN- ion present. A dual phenol deprotonation mechanism is active and supported by 1H NMR spectroscopic data and DFT calculation results.
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Affiliation(s)
- Zakir Ullah
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea; Graduate School of Energy, Environment, Water and Sustainability (EEWS), KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Prasad M Sonawane
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Thien S Nguyen
- Advanced Membranes and Porous Materials (AMPM) Center, Physical Science & Engineering, King Abdullah University of Science and Technology (KAUST), 4700 Thuwal, 23955-6900 Kingdom of Saudi Arabia
| | - Mousumi Garai
- Graduate School of Energy, Environment, Water and Sustainability (EEWS), KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - David G Churchill
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea; KAIST Institute for Health Science and Technology (KIHST) (Therapeutic Bioengineering Section), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
| | - Cafer T Yavuz
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea; Graduate School of Energy, Environment, Water and Sustainability (EEWS), KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea; Advanced Membranes and Porous Materials (AMPM) Center, Physical Science & Engineering, King Abdullah University of Science and Technology (KAUST), 4700 Thuwal, 23955-6900 Kingdom of Saudi Arabia.
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Kediya S, Manhas A, Jha PC. Benzothiazole‐based chemosensor: a quick dip into its anion sensing mechanism. J PHYS ORG CHEM 2021. [DOI: 10.1002/poc.4283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Siddhi Kediya
- School of Applied Material Sciences Central University of Gujarat Gandhinagar India
| | - Anu Manhas
- Department of Chemistry Pandit Deendayal Energy University (formerly PDPU) Gandhinagar India
| | - Prakash C. Jha
- School of Applied Material Sciences Central University of Gujarat Gandhinagar India
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Xia Y, Li M, Xu A, Zhang Z, Sun A, Ding S, Liu Y. Sensing mechanism of fluorogenic urea with fluoride in solvent media: A new fluorescence quenching mechanism. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 246:118992. [PMID: 33038861 DOI: 10.1016/j.saa.2020.118992] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 08/29/2020] [Accepted: 09/19/2020] [Indexed: 06/11/2023]
Abstract
The interaction of 1-Phenyl-3-(pyren-1-yl) urea (LH) and fluoride anion (F-) with a unique ON1-OFF-ON2 fluorescent response has been investigated by the density functional theory (DFT) and time-dependent density functional theory (TDDFT) calculations. The hydrogen-bonding dynamics and photophysical properties of the complex LH-F, as well as its isolated receptor LH and anion form L-H1, have been studied in detail. We demonstrate that the intermolecular hydrogen bond (N-H…F) of the complex LH-F is greatly enhanced in the electronically excited state. The nonradiative deactivation via electron transfer and internal conversion rather than excited-state intramolecular proton transfer (ESIPT) can be facilitated by the excited state hydrogen bond strengthening. The results have been cross-validated by molecular structure, electronic spectra, frontier molecular orbitals, and infrared spectra as well as hydrogen bond binding energy. These results indicate that the current calculations completely reproduce the experimental results and provide compelling evidence for the sensing mechanism of LH for F-.
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Affiliation(s)
- Yong Xia
- Hunan Key Laboratory of Biomass Fiber Functional Materials, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China; College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China.
| | - Mengyao Li
- Hunan Key Laboratory of Biomass Fiber Functional Materials, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China
| | - Aixiang Xu
- School of Civil Engineering, Hunan University of Technology, Zhuzhou 412007, China
| | - Zhe Zhang
- School of Civil Engineering, Hunan University of Technology, Zhuzhou 412007, China
| | - Aokui Sun
- Hunan Key Laboratory of Biomass Fiber Functional Materials, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China
| | - Sha Ding
- Hunan Key Laboratory of Biomass Fiber Functional Materials, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China; School of Civil Engineering, Hunan University of Technology, Zhuzhou 412007, China.
| | - Yuejun Liu
- Hunan Key Laboratory of Biomass Fiber Functional Materials, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China
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Yang G, Wang G, Chen K, Yang D. Sensing of fluoride anion based on desilylation and intramolecular charge transfer of 2‐[2‐(tert‐butyl‐diphenyl‐silanyloxy)‐phenyl]‐4,5‐diphenyl‐1H‐imidazole. J PHYS ORG CHEM 2020. [DOI: 10.1002/poc.4162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Guang Yang
- Basic Teaching Department Jiaozuo University Jiaozuo China
| | - Gang Wang
- Basic Teaching Department Jiaozuo University Jiaozuo China
| | - Kaifeng Chen
- Basic Teaching Department Jiaozuo University Jiaozuo China
| | - Dapeng Yang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian China
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