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Jin S, Sanii R, Song BQ, Zaworotko MJ. Crystal Engineering of Ionic Cocrystals Sustained by the Phenol-Phenolate Supramolecular Heterosynthon. CRYSTAL GROWTH & DESIGN 2022; 22:4582-4591. [PMID: 35935703 PMCID: PMC9347308 DOI: 10.1021/acs.cgd.2c00471] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Although crystal engineering strategies are generally well explored in the context of multicomponent crystals (cocrystals) formed by neutral coformers (molecular cocrystals), cocrystals comprised of one or more salts (ionic cocrystals, ICCs) are understudied. We herein address the design, preparation, and structural characterization of ICCs formed by phenolic moieties, a common group in natural products and drug molecules. Organic and inorganic bases were reacted with the following phenolic coformers: phenol, resorcinol, phloroglucinol, 4-methoxyphenol, and 4-isopropylphenol. Nine ICCs were crystallized, each of them sustained by the phenol-phenolate supramolecular heterosynthon (PhOH···PhO-). Such ICCs are of potential utility, and there are numerous examples of phenolic compounds that are biologically active, some of which suffer from low aqueous solubility. The propensity to form ICCs sustained by the PhOH···PhO- supramolecular heterosynthon was evaluated through a combination of Cambridge Structural Database (CSD) mining, structural characterization of nine novel ICCs, and calculation of interaction energies. Our analysis of these 9 ICCs and the 41 relevant entries archived in the CSD revealed that phenol groups can reliably form ICCs through charge-assisted PhOH···PhO- interactions. This conclusion is supported by hydrogen-bond strength calculations derived from CrystalExplorer that reveal the PhOH···PhO- interaction to be around 3 times stronger than the phenol-phenol hydrogen bond. The PhOH···PhO- supramolecular heterosynthon could therefore enable crystal engineering studies of a large number of phenolic pharmaceutical and nutraceutical compounds with their conjugate bases.
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Affiliation(s)
- Shasha Jin
- Department of Chemical Sciences
and Bernal Institute, University of Limerick,
Co., Limerick V94 T9PX, Ireland
| | - Rana Sanii
- Department of Chemical Sciences
and Bernal Institute, University of Limerick,
Co., Limerick V94 T9PX, Ireland
| | - Bai-Qiao Song
- Department of Chemical Sciences
and Bernal Institute, University of Limerick,
Co., Limerick V94 T9PX, Ireland
| | - Michael J. Zaworotko
- Department of Chemical Sciences
and Bernal Institute, University of Limerick,
Co., Limerick V94 T9PX, Ireland
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2
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Weitkamp RF, Neumann B, Stammler HG, Hoge B. Non-Coordinated Phenolate Anions and Their Application in SF 6 Activation. Chemistry 2021; 27:6460-6464. [PMID: 32776547 PMCID: PMC8247349 DOI: 10.1002/chem.202003504] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/04/2020] [Indexed: 11/11/2022]
Abstract
The reaction of the strong monophosphazene base with the weakly acidic phenol leads to the formation of a phenol-phenolate anion with a moderately strong hydrogen bond. Application of the more powerful tetraphosphazene base (Schwesinger base) renders the isolation of the corresponding salt with a free phenolate anion possible. This compound represents the first species featuring the free phenolate anion [H5 C6 -O]- . The deprotonation of phenol derivatives with tetraphosphazene bases represents a great way for the clean preparation of salts featuring free phenolate anions and in addition allows the selective syntheses of hydrogen bonded phenol-phenolate salts. This work presents a phosphazenium phenolate salt with a redox potential of -0.72 V and its capability for the selective activation of the chemically inert greenhouse gas SF6 . The performed two-electron reduction of SF6 leads to phosphazenium pentafluorosulfanide ([SF5 ]- ) and fluoride salts.
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Affiliation(s)
- Robin F Weitkamp
- Centrum für Molekulare Materialien, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Beate Neumann
- Centrum für Molekulare Materialien, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Hans-Georg Stammler
- Centrum für Molekulare Materialien, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Berthold Hoge
- Centrum für Molekulare Materialien, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany
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3
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Panja SK, Verma S, Saha S. Probing phenol dimer in molecular complex: Role of nitro group and stabilizing agent. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.05.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Solid state structure and photophysical properties of monoanionic 2-(2′-hydroxyphenyl)benzimidazole as an anionic core in rhenium complex. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.03.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Li R, Gu X, Liang X, Hou S, Hu D. Aggregation of Gold Nanoparticles Caused in Two Different Ways Involved in 4-Mercaptophenylboronic Acidand Hydrogen Peroxide. MATERIALS 2019; 12:ma12111802. [PMID: 31163635 PMCID: PMC6600739 DOI: 10.3390/ma12111802] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 05/24/2019] [Accepted: 05/31/2019] [Indexed: 11/30/2022]
Abstract
The difference in gold nanoparticle (AuNPs) aggregation caused by different mixing orders of AuNPs, 4-mercaptophenylboronic acid (4-MPBA), and hydrogen peroxide (H2O2) has been scarcely reported. We have found that the color change of a ((4-MPBA + AuNPs) + H2O2) mixture caused by H2O2 is more sensitive than that of a ((4-MPBA + H2O2) + AuNPs) mixture. For the former mixture, the color changes obviously with H2O2 concentrations in the range of 0~0.025%. However, for the latter mixture, the corresponding H2O2 concentration is in the range of 0~1.93%. The mechanisms on the color change originating from the aggregation of AuNPs occurring in the two mixtures were investigated in detail. For the ((4-MPBA + H2O2) + AuNPs) mixture, free 4-MPBA is oxidized by H2O2 to form bis(4-hydroxyphenyl) disulfide (BHPD) and peroxoboric acid. However, for the ((4-MPBA+AuNPs) + H2O2) mixture, immobilized 4-MPBA is oxidized by H2O2 to form 4-hydroxythiophenol (4-HTP) and boric acid. The decrease in charge on the surface of AuNPs caused by BHPD, which has alarger steric hindrance, is poorer than that caused by -4-HTP, and this is mainly responsible for the difference in the aggregation of AuNPs in the two mixtures. The formation of boric acid and peroxoboric acid in the reaction between 4-MPBA and H2O2 can alter the pH of the medium, and the effect of the pH change on the aggregation of AuNPs should not be ignored. These findings not only offer a new strategy in colorimetric assays to expand the detection range of hydrogen peroxide concentrations but also assist in deepening the understanding of the aggregation of citrate-capped AuNPs involved in 4-MPBA and H2O2, as well as in developing other probes.
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Affiliation(s)
- Runmei Li
- Engineering Research Center of Historical and Cultural Heritage Protection, Ministry of Education, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710062, China.
| | - Xuefan Gu
- College of Chemistry and Chemical Engineering, Xi'an Shiyou University, Xi'an 710065, China.
| | - Xingtang Liang
- Engineering Research Center of Historical and Cultural Heritage Protection, Ministry of Education, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710062, China.
| | - Shi Hou
- Engineering Research Center of Historical and Cultural Heritage Protection, Ministry of Education, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710062, China.
| | - Daodao Hu
- Engineering Research Center of Historical and Cultural Heritage Protection, Ministry of Education, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710062, China.
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Karas LJ, Batista PR, Viesser RV, Tormena CF, Rittner R, de Oliveira PR. Trends of intramolecular hydrogen bonding in substituted alcohols: a deeper investigation. Phys Chem Chem Phys 2017. [DOI: 10.1039/c7cp03572a] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
NBO analyses were used to perform a deeper investigation on the effects that drive IAHB strength in substituted acyclic alcohols.
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Affiliation(s)
- Lucas J. Karas
- Conformational Analysis and Renewable Resources Laboratory
- Department of Chemistry and Biology
- Federal University of Technology-Paraná
- Curitiba
- Brazil
| | - Patrick R. Batista
- Conformational Analysis and Renewable Resources Laboratory
- Department of Chemistry and Biology
- Federal University of Technology-Paraná
- Curitiba
- Brazil
| | - Renan V. Viesser
- Physical Organic Chemistry Laboratory
- Institute of Chemistry
- University of Campinas
- 13083-970 Campinas
- Brazil
| | - Cláudio F. Tormena
- Physical Organic Chemistry Laboratory
- Institute of Chemistry
- University of Campinas
- 13083-970 Campinas
- Brazil
| | - Roberto Rittner
- Physical Organic Chemistry Laboratory
- Institute of Chemistry
- University of Campinas
- 13083-970 Campinas
- Brazil
| | - Paulo R. de Oliveira
- Conformational Analysis and Renewable Resources Laboratory
- Department of Chemistry and Biology
- Federal University of Technology-Paraná
- Curitiba
- Brazil
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Takeshima K, Mizuno K, Nakahashi H, Aoki H, Kanekiyo Y. Ratiometric Sensing of Hydrogen Peroxide Utilizing Conformational Change in Fluorescent Boronic Acid Polymers. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2017; 2017:7829438. [PMID: 29093982 PMCID: PMC5637826 DOI: 10.1155/2017/7829438] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 07/31/2017] [Accepted: 08/17/2017] [Indexed: 05/21/2023]
Abstract
We demonstrate that the copolymers containing boronic acid and pyrene units can be utilized for the fluorometric sensing of hydrogen peroxide (H2O2) in aqueous solutions. The copolymer exists in a relatively extended conformation in the absence of H2O2, whereas the polymer chain is contracted by the reaction of boronic acid moieties with H2O2 to form phenol groups. This conformational change induces aggregation of the originally isolated pyrene groups. As a result, relative intensity of excimer emission with respect to monomer emission increases with H2O2 concentration. Accordingly, the present methodology enables us to measure H2O2 by means of ratiometric fluorescence change in the range of 0-30 μM.
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Affiliation(s)
- Kan Takeshima
- Department of Biotechnology and Environmental Chemistry, Kitami Institute of Technology, 165 Koen-cho, Kitami, Hokkaido 090-8507, Japan
| | - Kanako Mizuno
- Department of Biotechnology and Environmental Chemistry, Kitami Institute of Technology, 165 Koen-cho, Kitami, Hokkaido 090-8507, Japan
| | - Hitoshi Nakahashi
- Department of Biotechnology and Environmental Chemistry, Kitami Institute of Technology, 165 Koen-cho, Kitami, Hokkaido 090-8507, Japan
| | - Hiroshi Aoki
- National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan
| | - Yasumasa Kanekiyo
- Department of Biotechnology and Environmental Chemistry, Kitami Institute of Technology, 165 Koen-cho, Kitami, Hokkaido 090-8507, Japan
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Hou GL, Valiev M, Wang XB. Deprotonated Dicarboxylic Acid Homodimers: Hydrogen Bonds and Atmospheric Implications. J Phys Chem A 2016; 120:2342-9. [DOI: 10.1021/acs.jpca.6b01166] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gao-Lei Hou
- Physical Sciences
Division and ‡Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, 902 Battelle Boulevard, P.O. Box
999, Richland, Washington 99352, United States
| | - Marat Valiev
- Physical Sciences
Division and ‡Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, 902 Battelle Boulevard, P.O. Box
999, Richland, Washington 99352, United States
| | - Xue-Bin Wang
- Physical Sciences
Division and ‡Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, 902 Battelle Boulevard, P.O. Box
999, Richland, Washington 99352, United States
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Nachimuthu S, Chen WC, Leggesse EG, Jiang JC. First principles study of organic sensitizers for dye sensitized solar cells: effects of anchoring groups on optoelectronic properties and dye aggregation. Phys Chem Chem Phys 2016; 18:1071-81. [DOI: 10.1039/c5cp04877j] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Efficient organic sensitizers with improved spectral properties and less aggregation have been proposed for practical DSSCs based on theoretical calculations.
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Affiliation(s)
- Santhanamoorthi Nachimuthu
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei 106
- Republic of China
| | - Wei-Chieh Chen
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei 106
- Republic of China
| | - Ermias Girma Leggesse
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei 106
- Republic of China
- Department of Chemistry
| | - Jyh-Chiang Jiang
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei 106
- Republic of China
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10
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Panja SK, Dwivedi N, Saha S. Manipulating the proton transfer process in molecular complexes: synthesis and spectroscopic studies. Phys Chem Chem Phys 2016; 18:21600-9. [DOI: 10.1039/c6cp03797f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The proton transfer process in carefully designed molecular complexes has been investigated directly in the solid and solution phase.
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Affiliation(s)
- Sumit Kumar Panja
- Department of Chemistry
- Centre for Advanced Studies
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
| | - Nidhi Dwivedi
- Department of Chemistry
- Centre for Advanced Studies
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
| | - Satyen Saha
- Department of Chemistry
- Centre for Advanced Studies
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
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