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Yoneda N, Iyama H, Nagata T, Katahira M, Ishii Y, Tada K, Matsumoto K, Hagiwara R. Fluoride Ion in Alcohols: Isopropanol vs Hexafluoroisopropanol. J Phys Chem Lett 2024; 15:1677-1685. [PMID: 38315662 DOI: 10.1021/acs.jpclett.3c03619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
The utility of alcohol as a hydrogen bonding donor is considered a providential avenue for moderating the high basicity and reactivity of the fluoride ion, typically used with large cations. However, the practicality of alcohol-fluoride systems in reactions is hampered by the limited understanding of the pertinent interactions between the OH group and F-. Therefore, this study comparatively investigates the thermal, structural, and physical properties of the CsF-2-propanol and CsF-1,1,1,3,3,3-hexafluoro-2-propanol systems to explicate the effects of the fluoroalkyl group on the interaction of alcohols and F-. The two systems exhibit vastly different phase diagrams despite the similar saturated concentrations. A combination of spectroscopic analyses, alcohol activity coefficient measurements, and theoretical calculations reveal the fluorinated alcohol system harbors the stronger OH···F- interactions between the two systems. The diffusion coefficient and ionic conductivity measurements attribute the present results to disparate states of ion association in the two systems.
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Affiliation(s)
- Nozomi Yoneda
- Graduate School of Energy Science, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Haruka Iyama
- Graduate School of Energy Science, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Takashi Nagata
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Masato Katahira
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Yoshiki Ishii
- School of Frontier Engineering, Kitasato University, 1-15-1 Kitazato, Minami-ku, Sagamihara, Kanagawa 252-0373, Japan
| | - Kohei Tada
- Research Institute of Electrochemical Energy, National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Osaka 563-8577, Japan
| | - Kazuhiko Matsumoto
- Graduate School of Energy Science, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Rika Hagiwara
- Graduate School of Energy Science, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
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Krishnaveni K, Gurusamy S, Rajakumar K, Sathish V, Thanasekaran P, Mathavan A. Aggregation induced emission (AIE), selective fluoride ion sensing and lysozyme interaction properties of Julolidinesulphonyl derived Schiff base. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.113822] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Yang L, Li M, Ruan S, Xu X, Wang Z, Wang S. Highly efficient coumarin-derived colorimetric chemosensors for sensitive sensing of fluoride ions and their applications in logic circuits. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 255:119718. [PMID: 33774418 DOI: 10.1016/j.saa.2021.119718] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 03/09/2021] [Accepted: 03/15/2021] [Indexed: 06/12/2023]
Abstract
In this study, three new compounds 6-substituted-3-acetylcoumarin 4-(2'-isocamphanyl)thiosemicarbazones (3a, 3b, and 3c) were facilely synthesized and employed as colorimetric chemosensors for fluoride ions. The recognition behaviors of receptors 3a, 3b, and 3c toward F- were investigated by using UV-vis absorption spectroscopy. Among them, the receptor 3c displayed more superior sensitivity and rapid response time toward F- with a swift naked-eye color change from colorless to purple, and its detection limit was as low as 6.3 × 10-7 M, and the binding constant was calculated to be 2.58 × 104 M-1. Furthermore, the interaction mechanism between the receptor 3c and F- was studied by 1H NMR, HRMS, and density functional theory (DFT) studies, suggesting that initial formation of a hydrogen-bonded host-guest complex and the subsequent deprotonation of receptor 3c upon the addition of excess F-, which was responsible for the remarkable changes in the absorption spectra of 3c. Besides, a combinatorial logic circuit of IMPLICATION and INHIBITION gates at the molecular level was fabricated using the reversibility of receptor 3c toward F- and Mg2+. Finally, the test strips coated with receptor 3c revealed a good sensitivity for F- in an aqueous medium. Apart from that, the excellent performance of receptor 3c for detecting F- was reconfirmed by grinding them with KBr powder.
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Affiliation(s)
- Lijuan Yang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Mingxin Li
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Shutang Ruan
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Xu Xu
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Zhonglong Wang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China.
| | - Shifa Wang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China.
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Shida N, Takenaka H, Gotou A, Isogai T, Yamauchi A, Kishikawa Y, Nagata Y, Tomita I, Fuchigami T, Inagi S. Alkali Metal Fluorides in Fluorinated Alcohols: Fundamental Properties and Applications to Electrochemical Fluorination. J Org Chem 2021; 86:16128-16133. [PMID: 34197111 DOI: 10.1021/acs.joc.1c00692] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Fundamental properties of alkali metal fluorides (MF, M = Cs, K) dissolved in 1,1,1,3,3,3-hexafluoroisopropanol (HFIP) or in 3,3,3-trifluoroethanol (TFE) are investigated, including solubility, conductivity, and viscosity. Solid-state structures of single crystals obtained from CsF/HFIP and CsF/TFE are described for the first time, giving insights into the multiple interactions between fluorinated alcohols and CsF. Applications in electrochemical fluorination reactions are successfully demonstrated.
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Affiliation(s)
- Naoki Shida
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8502, Japan.,Department of Chemistry and Life Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, Kanagawa 240-8501, Japan
| | - Hiroaki Takenaka
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8502, Japan
| | - Akihiro Gotou
- Daikin Industries Ltd., 1-1 Nishi-Hitotsuya, Settsu, Osaka 566-8585, Japan
| | - Tomohiro Isogai
- Daikin Industries Ltd., 1-1 Nishi-Hitotsuya, Settsu, Osaka 566-8585, Japan
| | - Akiyoshi Yamauchi
- Daikin Industries Ltd., 1-1 Nishi-Hitotsuya, Settsu, Osaka 566-8585, Japan
| | - Yosuke Kishikawa
- Daikin Industries Ltd., 1-1 Nishi-Hitotsuya, Settsu, Osaka 566-8585, Japan
| | - Yuuya Nagata
- Institute for Chemical Reaction Design and Discovery, Hokkaido University, Kita 21 Nishi 10, Kita-Ku, Sapporo, Hokkaido 001-0021, Japan
| | - Ikuyoshi Tomita
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8502, Japan
| | - Toshio Fuchigami
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8502, Japan
| | - Shinsuke Inagi
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8502, Japan.,PRESTO, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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Micro-solvation and counter ion effects on ionic reactions: Activation of potassium fluoride with 18-crown-6 and tert-butanol in aprotic solvents. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114211] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Ibba F, Pupo G, Thompson AL, Brown JM, Claridge TDW, Gouverneur V. Impact of Multiple Hydrogen Bonds with Fluoride on Catalysis: Insight from NMR Spectroscopy. J Am Chem Soc 2020; 142:19731-19744. [PMID: 33166450 PMCID: PMC7677927 DOI: 10.1021/jacs.0c09832] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
![]()
Hydrogen-bonding
interactions have been explored in catalysis,
enabling complex chemical reactions. Recently, enantioselective nucleophilic
fluorination with metal alkali fluoride has been accomplished with
BINAM-derived bisurea catalysts, presenting up to four NH hydrogen-bond
donors (HBDs) for fluoride. These catalysts bring insoluble CsF and
KF into solution, control fluoride nucleophilicity, and provide a
chiral microenvironment for enantioselective fluoride delivery to
the electrophile. These attributes encouraged a 1H/19F NMR study to gain information on hydrogen-bonding networks
with fluoride in solution, as well as how these arrangements impact
the efficiency of catalytic nucleophilic fluorination. Herein, NMR
experiments enabled the determination of the number and magnitude
of HB contacts to fluoride for thirteen bisurea catalysts. These data
supplemented by diagnostic coupling constants 1hJNH···F– give
insight into how multiple H bonds to fluoride influence reaction performance.
In dichloromethane (DCM-d2), nonalkylated
BINAM-derived bisurea catalyst engages two of its four NH groups in
hydrogen bonding with fluoride, an arrangement that allows effective
phase-transfer capability but low control over enantioselectivity
for fluoride delivery. The more efficient N-alkylated BINAM-derived
bisurea catalysts undergo urea isomerization upon fluoride binding
and form dynamically rigid trifurcated hydrogen-bonded fluoride complexes
that are structurally similar to their conformation in the solid state.
Insight into how the countercation influences fluoride complexation
is provided based on NMR data characterizing the species formed in
DCM-d2 when reacting a bisurea catalyst
with tetra-n-butylammonium fluoride (TBAF) or CsF.
Structure–activity analysis reveals that the three hydrogen-bond
contacts with fluoride are not equal in terms of their contribution
to catalyst efficacy, suggesting that tuning individual electronic
environment is a viable approach to control phase-transfer ability
and enantioselectivity.
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Affiliation(s)
- Francesco Ibba
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Gabriele Pupo
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Amber L Thompson
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - John M Brown
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Timothy D W Claridge
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Véronique Gouverneur
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
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