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Lv W, Xu Y, Yang T, Wang L, Huang J, Huang H, Feng G. Unveiling the underappreciated: The bonding features of C-H⋯S-S interactions observed from rotational spectroscopy. J Chem Phys 2024; 160:134302. [PMID: 38557843 DOI: 10.1063/5.0200788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 03/18/2024] [Indexed: 04/04/2024] Open
Abstract
The C-H⋯S-S interactions are fundamentally important to understand the stability of biomacromolecules and their binding with small molecules, but they are still underappreciated. Herein, we characterized the C-H⋯S-S interactions in model molecular complexes. The rotational spectra of the complexes of diethyl disulfide with CH2CH2 and CH2CHF were measured and analyzed. All the detected structures are mainly stabilized by a C-H⋯S-S hydrogen bond, providing stabilization energies of 2.3-7.2 kJ mol-1. Incidental C-H⋯π or C-H⋯F interactions enhance the stabilization of the complexes. London dispersion, which accounts for 54%-68% of the total attractions, is the main driving force of stabilization. The provided bonding features of C-H⋯S-S are crucial for understanding the stabilizing role of this type of interaction in diverse processes such as supramolecular recognition, protein stability, and enzyme activity.
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Affiliation(s)
- Wenqi Lv
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Yugao Xu
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Tingting Yang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Liuting Wang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Jinxi Huang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Haiying Huang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Gang Feng
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
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2
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Fargher HA, Delmau LH, Bryantsev VS, Haley MM, Johnson DW, Moyer BA. Disrupting the Hofmeister bias in salt liquid-liquid extraction with an arylethynyl bisurea anion receptor. Chem Sci 2024; 15:5311-5318. [PMID: 38577371 PMCID: PMC10988605 DOI: 10.1039/d3sc05922g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 03/04/2024] [Indexed: 04/06/2024] Open
Abstract
Host-mediated liquid-liquid extraction is a convenient method for the separation of inorganic salts. However, selective extraction of an anion, regardless of its hydrophilicity or lipophilicity as qualitatively described by its place in the Hofmeister series, remains challenging. Herein we report the complete disruption of the Hofmeister-based ordering of anions in host-mediated extraction by a rigidified tweezer-type receptor possessing remarkably strong anion-binding affinity under the conditions examined. Experiments introduce a convenient new method for determination of anion binding using phosphorus inductively coupled plasma mass spectrometry (ICP-MS) to measure extraction of tetra-n-butylphosphonium (TBP+) salts from water into nitrobenzene, specifically examining the disrupting effect of the added arylethynyl bisurea anion receptor. In the absence of the receptor, the salt partitioning follows the expected Hofmeister-type ordering favoring the larger, less hydrated anions; the analysis yields the value -24 kJ mol-1 for the standard Gibbs energy of partitioning of TBP+ cation from water into nitrobenzene at 25 °C. Selectivity is markedly changed by the addition of receptor to the nitrobenzene and is concentration dependent, giving rise to three selectivity regimes. We then used SXLSQI liquid-liquid equilibrium analysis software developed at Oak Ridge National Laboratory to fit host-mediated extraction equilibria for TBP+ salts of Cl-, Br-, I-, and NO3- to the distribution data. While the reverse-Hofmeister 1 : 1 binding of the anions by the receptor effectively cancels the Hofmeister selectivity of the TBPX partitioning into nitrobenzene, formation of unexpected 2 : 1 receptor : anion complexes favoring Cl- and Br- dominates the selectivity at elevated receptor concentrations, producing the unusual order Br- > Cl- > NO3- > I- in anion distribution wherein a middle member of the series is selected and the most lipophilic anion is disfavored. Density functional theory calculations confirmed the likelihood of forming 2 : 1 complexes, where Cl- and Br- are encapsulated by two receptors adopting energetically competitive single or double helix structures. The calculations explain the rare non-Hofmeister preference for Br-. This example shows that anion receptors can be used to control the selectivity and efficiency of salt extraction regardless of the position of the anion in the Hofmeister series.
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Affiliation(s)
- Hazel A Fargher
- Department of Chemistry and Biochemistry, Materials Science Institute, University of Oregon Eugene OR 97403-1253 USA
| | - Lætitia H Delmau
- Radioisotope Science and Technology Division, Oak Ridge National Laboratory Oak Ridge TN 37831-6384 USA
| | | | - Michael M Haley
- Department of Chemistry and Biochemistry, Materials Science Institute, University of Oregon Eugene OR 97403-1253 USA
| | - Darren W Johnson
- Department of Chemistry and Biochemistry, Materials Science Institute, University of Oregon Eugene OR 97403-1253 USA
| | - Bruce A Moyer
- Chemical Sciences Division, Oak Ridge National Laboratory Oak Ridge TN 37831-6119 USA
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3
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Davis AG, Zakharov LN, Pluth MD. Reversible Hydrosulfide (HS -) Binding Using Exclusively C-H Hydrogen-Bonding Interactions in Imidazolium Hosts. Inorg Chem 2024; 63:3057-3062. [PMID: 38286007 DOI: 10.1021/acs.inorgchem.3c03922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2024]
Abstract
H2S is a physiologically important signaling molecule with complex roles in biology and exists primarily as HS- at physiological pH. Despite this anionic character, few investigations have focused on the molecular recognition and reversible binding of this important biological anion. Using a series of imidazole and imidazolium host molecules, we investigate the role of preorganization and charge on HS- binding. Using a macrocyclic bis-imidazolium receptor, we demonstrate the unexpected 2:1 host-guest binding of HS-, which was characterized both in solution and by X-ray crystallography. To the best of our knowledge, this is the first example of this binding stoichiometry for HS- binding. Moreover, the short C-H···S distances of 2.53, 2.54, 2.76, and 2.79 Å are well within the sum of the van der Waals radii of the interacting atoms, which is consistent with strong C-H···S interactions.
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Affiliation(s)
- Amanda G Davis
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, Institute of Molecular Biology, 1253 University of Oregon. Eugene, Oregon 97403, United States
| | - Lev N Zakharov
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, Institute of Molecular Biology, 1253 University of Oregon. Eugene, Oregon 97403, United States
| | - Michael D Pluth
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, Institute of Molecular Biology, 1253 University of Oregon. Eugene, Oregon 97403, United States
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4
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McNeill JN, Bard JP, Johnson DW, Haley MM. Azaphosphinines and their derivatives. Chem Soc Rev 2023. [PMID: 37997364 DOI: 10.1039/d3cs00737e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2023]
Abstract
Six-membered heterocycles containing one phosphorus and one nitrogen atom, known as azaphosphinines, have existed in the shadows of their single heteroatom-containing analogues for almost 150 years. Despite this, recent chemistry has seen a rapid increase in publications concerning this uncommon scaffold. Azaphosphinines exist in one of six isomers-there are three possible orientations of the pnictogen atoms and in each of these, the phosphorus is in one of two valences (PIIIvs. PV). This review aims to outline and inform on the synthesis and applications of all six isomers. PV-oxo azaphosphinines are of particular interest to this review as many of the discussed heterocycles either form as the pentavalent species directly or oxidize to this over time. In very recent years the published applications of azaphosphinines have blossomed into subjects spanning several fields of chemistry such as asymmetric catalysis, supramolecular association, cellular imaging, and medicinal chemistry.
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Affiliation(s)
- J Nolan McNeill
- Department of Chemistry & Biochemistry and the Materials Science Institute, University of Oregon, Eugene, OR 97403-1253, USA.
| | - Jeremy P Bard
- Department of Chemistry, Washington College, Chestertown, MD 21620-1438, USA.
| | - Darren W Johnson
- Department of Chemistry & Biochemistry and the Materials Science Institute, University of Oregon, Eugene, OR 97403-1253, USA.
| | - Michael M Haley
- Department of Chemistry & Biochemistry and the Materials Science Institute, University of Oregon, Eugene, OR 97403-1253, USA.
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5
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Newton TD, Li K, Sharma J, Champagne PA, Pluth MD. Direct hydrogen selenide (H 2Se) release from activatable selenocarbamates. Chem Sci 2023; 14:7581-7588. [PMID: 37449078 PMCID: PMC10337719 DOI: 10.1039/d3sc01936e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 06/19/2023] [Indexed: 07/18/2023] Open
Abstract
Hydrogen selenide (H2Se) is a possible bioregulator, potential gasotransmitter, and important precursor in biological organoselenium compound synthesis. Early tools for H2Se research have benefitted from available mechanistic understanding of analogous small molecules developed for detecting or delivering H2S. A now common approach for H2S delivery is the use of small molecule thiocarbamates that can be engineered to release COS, which is quickly converted to H2S by carbonic anhydrase. To expand our understanding of the chemical underpinnings that enable H2Se delivery, we investigated whether selenocarbamates undergo similar chemistry to release carbonyl selenide (COSe). Using both light- and hydrolysis-activated systems, we demonstrate that unlike their lighter thiocarbamate congeners, selenocarbamates release H2Se directly with concomitant isocyanate formation rather than by the intermediate release of COSe. This reaction mechanism for direct H2Se release is further supported by computational investigations that identify a ΔΔG‡ ∼ 25 kcal mol-1 between the H2Se and COSe release pathways in the absence of protic solvent. This work highlights fundamentally new approaches for H2Se release from small molecules and advances the understanding of reactivity differences between reactive sulfur and selenium species.
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Affiliation(s)
- Turner D Newton
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, Institute of Molecular Biology, University of Oregon Eugene Oregon 97403-1253 USA
| | - Keyan Li
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, Institute of Molecular Biology, University of Oregon Eugene Oregon 97403-1253 USA
| | - Jyoti Sharma
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology Newark New Jersey 07103 USA
| | - Pier Alexandre Champagne
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology Newark New Jersey 07103 USA
| | - Michael D Pluth
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, Institute of Molecular Biology, University of Oregon Eugene Oregon 97403-1253 USA
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6
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Li J, Wang C, Mo Y. Selectivity Rule of Cryptands for Anions: Molecular Rigidity and Bonding Site. Chemistry 2023; 29:e202203558. [PMID: 36538660 DOI: 10.1002/chem.202203558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/15/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022]
Abstract
Cryptands utilize inside CH or NH groups as hydrogen bond (H-bond) donors to capture anions such as halides. In this work, the nature and selectivity of confined hydrogen bonds inside cryptands were computationally analyzed with the energy decomposition scheme based on the block-localized wavefunction method (BLW-ED), aiming at an elucidation of governing factors in the binding between cryptands and anions. It was revealed that the intrinsic strengths of inward hydrogen bonds are dominated by the electrostatic attraction, while the anion preferences (selectivity) of inner CH and NH hydrogen bonds are governed by the Pauli exchange repulsion and electrostatic interaction, respectively. Typical conformers of cages are classified into two groups, including the C3(h) -symmetrical conformers, in which all halide anions are located near the centroids of cages, and the "semi-open" conformers, which exhibit shifted bonding sites for different halide anions. Accordingly, the difference in governing factors of selectivity is attributed to either the rigidity of cages or the binding site of anions for these two groups. In details, the C3 conformers of NH cryptands can be enlarged more remarkably than the C3(h) -symmetrical conformers of CH cryptands as the size of anion (ionic radius) increases, resulting in the relaxation of the Pauli repulsion and a dramatic reduction in electrostatic attraction, which eventually rules the selectivity of NH cryptands for halide anions. By contrary, the CH cryptands are more rigid and cannot effectively reduce the Pauli repulsion, which subsequently governs the anion preference. Unlike C3 conformers whose rigidity determines the selectivity, semi-open conformers exhibit different binding sites for different anions. From F- to I- , the bonding site shifts toward the outside end of the pocket inside the semi-open NH cryptand, leading to the significant reduction of the electrostatic interaction that dominates the anion preference. Differently, binding sites are much less affected by the size of anion inside the semi-open CH cryptand, in which the Pauli exchange repulsion remains the key factor for the selectivity of inner hydrogen bonds.
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Affiliation(s)
- Jiayao Li
- Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Changwei Wang
- Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Yirong Mo
- Department of Nanoscience, Joint School of Nanoscience & Nanoengineering, University of North Carolina at Greensboro, Greensboro, NC, 27401, USA
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7
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Cysteine-Activated Small-Molecule H 2Se Donors Inspired by Synthetic H 2S Donors. J Am Chem Soc 2022; 144:3957-3967. [PMID: 35192764 DOI: 10.1021/jacs.1c12006] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The importance of selenium (Se) in biology and health has become increasingly clear. Hydrogen selenide (H2Se), the biologically available and active form of Se, is suggested to be an emerging nitric oxide (NO)-like signaling molecule. Nevertheless, the research on H2Se chemical biology has technique difficulties due to the lack of well-characterized and controllable H2Se donors under physiological conditions, as well as a robust assay for direct H2Se quantification. Motivated by these needs, here, we demonstrate that selenocyclopropenones and selenoamides are tunable donor motifs that release H2Se upon reaction with cysteine (Cys) at pH 7.4 and that structural modifications enable the rate of Cys-mediated H2Se release to be tuned. We monitored the reaction pathways for the H2Se release and confirmed H2Se generation qualitatively using different methods. We further developed a quantitative assay for direct H2Se trapping and quantitation in an aqueous solution, which should also be operative for investigating future H2Se donor motifs. In addition, we demonstrate that arylselenoamide has the capability of Cys-mediated H2Se release in cellular environments. Importantly, mechanistic investigations and density functional theory (DFT) calculations illustrate the plausible pathways of Cys-activated H2Se release from arylselenoamides in detail, which may help understand the mechanistic issues of the H2S release from pharmacologically important arylthioamides. We anticipate that the well-defined chemistries of Cys-activated H2Se donor motifs will be useful for studying Se biology and for development of new H2Se donors and bioconjugate techniques.
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8
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Fargher HA, Sherbow TJ, Haley MM, Johnson DW, Pluth MD. C-H⋯S hydrogen bonding interactions. Chem Soc Rev 2022; 51:1454-1469. [PMID: 35103265 PMCID: PMC9088610 DOI: 10.1039/d1cs00838b] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The short C-H⋯S contacts found in available structural data for both small molecules and larger biomolecular systems suggest that such contacts are an often overlooked yet important stabilizing interaction. Moreover, many of these short C-H⋯S contacts meet the definition of a hydrogen bonding interaction. Using available structural data from the Cambridge Structural Database (CSD), as well as selected examples from the literature in which important C-H⋯S contacts may have been overlooked, we highlight the generality of C-H⋯S hydrogen bonding as an important stabilizing interaction. To uncover and establish the generality of these interactions, we compare C-H⋯S contacts with other traditional hydrogen bond donors and acceptors as well as investigate how coordination number and metal bonding affect the preferred geometry of interactions in the solid state. This work establishes that the C-H⋯S bond meets the definition of a hydrogen bond and serves as a guide to identify C-H⋯S hydrogen bonds in diverse systems.
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Affiliation(s)
- Hazel A. Fargher
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, and Institute of Molecular Biology, University of Oregon, Eugene, Oregon, 97403-1253, USA
| | - Tobias J. Sherbow
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, and Institute of Molecular Biology, University of Oregon, Eugene, Oregon, 97403-1253, USA
| | - Michael M. Haley
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, and Institute of Molecular Biology, University of Oregon, Eugene, Oregon, 97403-1253, USA
| | - Darren W. Johnson
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, and Institute of Molecular Biology, University of Oregon, Eugene, Oregon, 97403-1253, USA
| | - Michael D. Pluth
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, and Institute of Molecular Biology, University of Oregon, Eugene, Oregon, 97403-1253, USA
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9
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Zeng W, Wu L, Ishigaki Y, Harimoto T, Hu Y, Sun Y, Wang Y, Suzuki T, Chen H, Ye D. An Activatable Afterglow/MRI Bimodal Nanoprobe with Fast Response to H
2
S for In Vivo Imaging of Acute Hepatitis. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202111759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wenhui Zeng
- State Key Laboratory of Analytical Chemistry for Life Science Chemistry and Biomedicine Innovation Center (ChemBIC) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Luyan Wu
- State Key Laboratory of Analytical Chemistry for Life Science Chemistry and Biomedicine Innovation Center (ChemBIC) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Yusuke Ishigaki
- Department of Chemistry Faculty of Science Hokkaido University N10 W8, North-ward Sapporo 060–0810 Japan
| | - Takashi Harimoto
- Department of Chemistry Faculty of Science Hokkaido University N10 W8, North-ward Sapporo 060–0810 Japan
| | - Yuxuan Hu
- State Key Laboratory of Analytical Chemistry for Life Science Chemistry and Biomedicine Innovation Center (ChemBIC) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Yidan Sun
- State Key Laboratory of Analytical Chemistry for Life Science Chemistry and Biomedicine Innovation Center (ChemBIC) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Yuqi Wang
- State Key Laboratory of Analytical Chemistry for Life Science Chemistry and Biomedicine Innovation Center (ChemBIC) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Takanori Suzuki
- Department of Chemistry Faculty of Science Hokkaido University N10 W8, North-ward Sapporo 060–0810 Japan
| | - Hong‐Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science Chemistry and Biomedicine Innovation Center (ChemBIC) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Deju Ye
- State Key Laboratory of Analytical Chemistry for Life Science Chemistry and Biomedicine Innovation Center (ChemBIC) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
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10
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Macreadie LK, Gilchrist AM, McNaughton DA, Ryder WG, Fares M, Gale PA. Progress in anion receptor chemistry. Chem 2022. [DOI: 10.1016/j.chempr.2021.10.029] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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11
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Newton TD, Bolton SG, Garcia AC, Chouinard JE, Golledge SL, Zakharov LN, Pluth MD. Hydrolysis-Based Small-Molecule Hydrogen Selenide (H 2Se) Donors for Intracellular H 2Se Delivery. J Am Chem Soc 2021; 143:19542-19550. [PMID: 34752701 DOI: 10.1021/jacs.1c09525] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Hydrogen selenide (H2Se) is a central metabolite in the biological processing of selenium for incorporation into selenoproteins, which play crucial antioxidant roles in biological systems. Despite being integral to proper physiological function, this reactive selenium species (RSeS) has received limited attention. We recently reported an early example of a H2Se donor (TDN1042) that exhibited slow, sustained release through hydrolysis. Here we expand that technology based on the P═Se motif to develop cyclic-PSe compounds with increased rates of hydrolysis and function through well-defined mechanisms as monitored by 31P and 77Se NMR spectroscopy. In addition, we report a colorimetric method based on the reaction of H2Se with NBD-Cl to generate NBD-SeH (λmax = 551 nm), which can be used to detect free H2Se. Furthermore, we use TOF-SIMS (time of flight secondary ion mass spectroscopy) to demonstrate that these H2Se donors are cell permeable and use this technique for spatial mapping of the intracellular Se content after H2Se delivery. Moreover, these H2Se donors reduce endogenous intracellular reactive oxygen species (ROS) levels. Taken together, this work expands the toolbox of H2Se donor technology and sets the stage for future work focused on the biological activity and beneficial applications of H2Se and related bioinorganic RSeS.
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Affiliation(s)
- Turner D Newton
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, Institute of Molecular Biology, University of Oregon, Eugene, Oregon 97403, United States
| | - Sarah G Bolton
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, Institute of Molecular Biology, University of Oregon, Eugene, Oregon 97403, United States
| | - Arman C Garcia
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, Institute of Molecular Biology, University of Oregon, Eugene, Oregon 97403, United States
| | - Julie E Chouinard
- Center for Advanced Materials Characterization in Oregon (CAMCOR), University of Oregon, Eugene, Oregon 97403, United States
| | - Stephen L Golledge
- Center for Advanced Materials Characterization in Oregon (CAMCOR), University of Oregon, Eugene, Oregon 97403, United States
| | - Lev N Zakharov
- Center for Advanced Materials Characterization in Oregon (CAMCOR), University of Oregon, Eugene, Oregon 97403, United States
| | - Michael D Pluth
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, Institute of Molecular Biology, University of Oregon, Eugene, Oregon 97403, United States
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12
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Zeng W, Wu L, Ishigaki Y, Harimoto T, Hu Y, Sun Y, Wang Y, Suzuki T, Chen HY, Ye D. An Activatable Afterglow/MRI Bimodal Nanoprobe with Fast Response to H 2 S for In Vivo Imaging of Acute Hepatitis. Angew Chem Int Ed Engl 2021; 61:e202111759. [PMID: 34791772 DOI: 10.1002/anie.202111759] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/20/2021] [Indexed: 11/12/2022]
Abstract
Accurate detection of hepatic hydrogen sulfide (H2 S) to monitor H2 S-related enzymes' activity is critical for acute hepatitis diagnosis, but remains a challenge due to the dynamic and transient nature of H2 S. Here, we report a H2 S-activatable near-infrared afterglow/MRI bimodal probe F1-GdNP, which shows an "always-on" MRI signal and "off-on" afterglow signal toward H2 S. F1-GdNP shows fast response, high sensitivity and specificity toward H2 S, permitting afterglow imaging of H2 S and evaluation of cystathionine γ-lyase (CSE)'s activity in living mice. We further employ the high spatial-resolution MRI signal of F1-GdNP to track its delivery and accumulation in liver. Importantly, F1-GdNP offers a high signal-to-background ratio (SBR=86.2±12.0) to sensitively report on the increased hepatic H2 S level in the acute hepatitis mice via afterglow imaging, which correlated well with the upregulated CSE activity in the liver, showcasing the good potential of F1-GdNP for monitoring of acute hepatitis process in vivo.
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Affiliation(s)
- Wenhui Zeng
- State Key Laboratory of Analytical Chemistry for Life Science, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Luyan Wu
- State Key Laboratory of Analytical Chemistry for Life Science, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Yusuke Ishigaki
- Department of Chemistry, Faculty of Science, Hokkaido University, N10 W8, North-ward, Sapporo, 060-0810, Japan
| | - Takashi Harimoto
- Department of Chemistry, Faculty of Science, Hokkaido University, N10 W8, North-ward, Sapporo, 060-0810, Japan
| | - Yuxuan Hu
- State Key Laboratory of Analytical Chemistry for Life Science, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Yidan Sun
- State Key Laboratory of Analytical Chemistry for Life Science, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Yuqi Wang
- State Key Laboratory of Analytical Chemistry for Life Science, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Takanori Suzuki
- Department of Chemistry, Faculty of Science, Hokkaido University, N10 W8, North-ward, Sapporo, 060-0810, Japan
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Deju Ye
- State Key Laboratory of Analytical Chemistry for Life Science, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
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13
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Fargher HA, Nickels RA, de Faria TP, Haley MM, Pluth MD, Johnson DW. Deuterium equilibrium isotope effects in a supramolecular receptor for the hydrochalcogenide and halide anions. RSC Adv 2021; 11:26581-26585. [PMID: 35479978 PMCID: PMC9037421 DOI: 10.1039/d1ra05711a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 11/29/2022] Open
Abstract
We highlight a convenient synthesis to selectively deuterate an aryl C-H hydrogen bond donor in an arylethynyl bisurea supramolecular anion receptor and use the Perrin method of competitive titrations to study the deuterium equilibrium isotope effects (DEIE) of anion binding for HS-, Cl-, and Br-. This work highlights the utility and also challenges in using this method to determine EIE with highly reactive and/or weakly binding anions.
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Affiliation(s)
- Hazel A Fargher
- Department of Chemistry & Biochemistry, Materials Science Institute, and Knight Campus for Accelerating Scientific Impact, University of Oregon Eugene OR 97403-1253 USA
| | - Russell A Nickels
- Department of Chemistry & Biochemistry, Materials Science Institute, and Knight Campus for Accelerating Scientific Impact, University of Oregon Eugene OR 97403-1253 USA
| | - Thaís P de Faria
- Department of Chemistry & Biochemistry, Materials Science Institute, and Knight Campus for Accelerating Scientific Impact, University of Oregon Eugene OR 97403-1253 USA
| | - Michael M Haley
- Department of Chemistry & Biochemistry, Materials Science Institute, and Knight Campus for Accelerating Scientific Impact, University of Oregon Eugene OR 97403-1253 USA
| | - Michael D Pluth
- Department of Chemistry & Biochemistry, Materials Science Institute, and Knight Campus for Accelerating Scientific Impact, University of Oregon Eugene OR 97403-1253 USA
| | - Darren W Johnson
- Department of Chemistry & Biochemistry, Materials Science Institute, and Knight Campus for Accelerating Scientific Impact, University of Oregon Eugene OR 97403-1253 USA
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14
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Guschlbauer J, Vollgraff T, Finger LH, Harms K, Sundermeyer J. Chalcogenido-Dimethylgallates and -Indates DMPyr 2 [Me 2 M(μ 2 -E)] 2 (M=Ga, In; E=S, Se): Building Blocks for Higher and Lower Order Chalcogenidoindates. ChemistryOpen 2021; 10:83-91. [PMID: 33565735 PMCID: PMC7874246 DOI: 10.1002/open.202000347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 12/16/2020] [Indexed: 11/08/2022] Open
Abstract
Metalation of the anions in the ionic liquids DMPyr[SH] and DMPyr[SeH] (DMPyr=1,1-dimethylpyrrolidinium) by trimethylgallium and trimethylindium is investigated. The reaction proceeds via pre-coordination of [EH]- , methane elimination and formation of an unprecedented series of chalcogenido metalates DMPyr2 [Me2 M(μ2 -E)]2 (M=Ga, In; E=S, Se). These show the presences of dinuclear dianions with four-membered ring structures displaying highly nucleophilic bridging chalcogenide ligands in their crystallographically determined molecular structures. Some representative reactions of these building blocks with amphoteric electrophiles were studied: Addition of two equivalents of E(SiMe3 )2 (E=S, Se) to the indates DMPyr2 [Me2 In(μ2 -S)]2 and DMPyr2 [Me2 In(μ2 -Se)]2 leads to a cleavage of the ring, E silylation and formation of mononuclear, monoanionic indates DMPyr[Me2 In(SSiMe3 )2 ], DMPyr[Me2 In(SeSiMe3 )2 ], and even a mixed sulfido-selenido dimethylindate DMPyr[Me2 In(SSiMe3 )(SeSiMe3 )]. Reaction of DMPyr2 [Me2 In(μ2 -S)]2 with two equivalents of Lewis acid Me3 In leads to charge delocalization, ring expansion and formation of six-membered ring DMPyr3 [Me2 In(μ2 -S-InMe3 )]3 . The latter is a key intermediate in the formation of dianionic sulfidoindate DMPyr2 [(Me2 In)6 (μ3 -S)4 ] displaying an unusual inverse heteroadamantane cage structure with four capping sulfido ligands.
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Affiliation(s)
- Jannick Guschlbauer
- Fachbereich Chemie and Materials Science CenterPhilipps-UniversitätHans-Meerwein-Str. 435032MarburgGermany
| | - Tobias Vollgraff
- Fachbereich Chemie and Materials Science CenterPhilipps-UniversitätHans-Meerwein-Str. 435032MarburgGermany
| | - Lars H. Finger
- Fachbereich Chemie and Materials Science CenterPhilipps-UniversitätHans-Meerwein-Str. 435032MarburgGermany
| | - Klaus Harms
- Fachbereich Chemie and Materials Science CenterPhilipps-UniversitätHans-Meerwein-Str. 435032MarburgGermany
| | - Jörg Sundermeyer
- Fachbereich Chemie and Materials Science CenterPhilipps-UniversitätHans-Meerwein-Str. 435032MarburgGermany
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15
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Liu P, Wang H, Zeng H, Hong X, Huang F. A [1 5]paracyclophenone and its fluorenone-containing derivatives: syntheses and binding to nerve agent mimics via aryl-CH hydrogen bonding interactions. Org Chem Front 2021. [DOI: 10.1039/d0qo00456a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A [15]paracyclophenone and its fluorenone-containing derivatives were synthesized. The novel macrocyclic host I binds nerve agent mimics through the ‘non-traditional’ aryl-CH hydrogen bonding interactions.
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Affiliation(s)
- Peiren Liu
- State Key Laboratory of Chemical Engineering
- Center for Chemistry of High- Performance & Novel Materials
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
| | - Hongliang Wang
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Hong Zeng
- State Key Laboratory of Chemical Engineering
- Center for Chemistry of High- Performance & Novel Materials
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
| | - Xin Hong
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Feihe Huang
- State Key Laboratory of Chemical Engineering
- Center for Chemistry of High- Performance & Novel Materials
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
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16
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Johnson DW, Haley MM, Bard JP. Bumpy Roads Lead to Beautiful Places: The Twists and Turns in Developing a New Class of PN-Heterocycles. Synlett 2020. [DOI: 10.1055/s-0040-1707168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The Haley and Johnson labs at the University of Oregon have been collaborating since 2006, combining skillsets in synthetic organic, physical organic, and supramolecular chemistries. This joint project has produced many examples of host molecules that bind anionic guests and give chemical, photophysical, and/or electrical responses. Many of these receptors utilize two-armed arylethynyl backbones that have a variety of hydrogen- or halogen-bonding functional groups appended. However, in attempts to produce a bisamide-containing host using a peptide-coupling protocol with P(OPh)3 present, we isolated something unexpected – a heterocycle containing neighboring P and N atoms. This ‘failed’ reaction turned into a surprisingly robust synthesis of phosphaquinolinones, an unusual class of PN-heterocycles. This Account article tells the rollercoaster story of these heterocycles in our lab. It will highlight our key works to this field, including a suite of fundamental studies of both the original PN-naphthalene moiety, as well as a variety of structural modifications to the arene backbone. It will also discuss the major step forward the project took when we developed a phosphaquinolinone-containing receptor molecule capable of binding HSO4
– selectively, reversibly, and with recyclability. With these findings, the project has gone from hospice care to making a full, robust recovery.1 Introduction2 Initial Discovery3 Setbacks Breathe New Life4 A New Dynamic Duo Develops Dozens of Derivatives5 Physicochemical Characterization5.1 Fluorescence5.2 Molecular Structures5.3 Solution Dimerization Studies6 Applying What We Have Learned6.1 Development of Supramolecular Host6.2 Use of PN Moiety as an Impressive Fluorophore7 Conclusions and Outlook
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17
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Fargher HA, Lau N, Richardson HC, Cheong PHY, Haley MM, Pluth MD, Johnson DW. Tuning Supramolecular Selectivity for Hydrosulfide: Linear Free Energy Relationships Reveal Preferential C-H Hydrogen Bond Interactions. J Am Chem Soc 2020; 142:8243-8251. [PMID: 32283020 DOI: 10.1021/jacs.0c00441] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Supramolecular anion receptors can be used to study the molecular recognition properties of the reactive yet biologically critical hydrochalcogenide anions (HCh-). Achieving selectivity for HCh- over the halides is challenging but necessary for not only developing future supramolecular probes for HCh- binding and detection, but also for understanding the fundamental properties that govern these binding and recognition events. Here we demonstrate that linear free energy relationships (LFERs)-including Hammett and Swain-Lupton plots-reveal a clear difference in sensitivity to the polarity of an aryl C-H hydrogen bond (HB) donor for HS- over other HCh- and halides. Analysis using electrostatic potential maps highlights that this difference in sensitivity results from a preference of the aryl C-H HB donor for HS- in this host scaffold. From this study, we demonstrate that LFERs are a powerful tool to gain interpretative insight into motif design for future anion-selective supramolecular receptors and highlight the importance of C-H HB donors for HS- recognition. From our results, we suggest that aryl C-H HB donors should be investigated in the next generation of HS- selective receptors based on the enhanced HS- selectivity over other competing anions in this system.
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Affiliation(s)
- Hazel A Fargher
- Department of Chemistry & Biochemistry, Materials Science Institute, and Knight Campus for Accelerating Scientific Impact, University of Oregon, Eugene, Oregon 97403-1253, United States
| | - Nathanael Lau
- Department of Chemistry & Biochemistry, Materials Science Institute, and Knight Campus for Accelerating Scientific Impact, University of Oregon, Eugene, Oregon 97403-1253, United States
| | - H Camille Richardson
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon 97331, United States
| | - Paul Ha-Yeon Cheong
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon 97331, United States
| | - Michael M Haley
- Department of Chemistry & Biochemistry, Materials Science Institute, and Knight Campus for Accelerating Scientific Impact, University of Oregon, Eugene, Oregon 97403-1253, United States
| | - Michael D Pluth
- Department of Chemistry & Biochemistry, Materials Science Institute, and Knight Campus for Accelerating Scientific Impact, University of Oregon, Eugene, Oregon 97403-1253, United States
| | - Darren W Johnson
- Department of Chemistry & Biochemistry, Materials Science Institute, and Knight Campus for Accelerating Scientific Impact, University of Oregon, Eugene, Oregon 97403-1253, United States
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18
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Newton TD, Pluth MD. Development of a hydrolysis-based small-molecule hydrogen selenide (H 2Se) donor. Chem Sci 2019; 10:10723-10727. [PMID: 32110352 PMCID: PMC7006510 DOI: 10.1039/c9sc04616j] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 10/11/2019] [Indexed: 12/16/2022] Open
Abstract
Selenium is essential to human physiology and has recently shown potential in the treatment of common pathophysiological conditions ranging from arsenic poisoning to cancer. Although the precise metabolic and chemical pathways of selenium incorporation into biomolecules remain somewhat unclear, many such pathways proceed through hydrogen selenide (H2Se/HSe-) formation. Despite this importance, well-characterized chemistry that enables H2Se release under controlled conditions remains lacking. Motivated by this need, we report here the development of a hydrolysis-based H2Se donor (TDN1042). Utilizing 31P and 77Se NMR experiments, we demonstrate the pH dependence of H2Se release and characterize observed reaction intermediates during the hydrolysis mechanism. Finally, we confirm H2Se release using electrophilic trapping reagents, which not only demonstrates the fidelity of this donor platform but also provides an efficient method for investigating future H2Se donor motifs. Taken together, this work provides an early example of an H2Se donor that functions through a well-defined and characterized mechanism.
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Affiliation(s)
- Turner D Newton
- Department of Chemistry and Biochemistry , Materials Science Institute , Institute of Molecular Biology , University of Oregon , Eugene , OR 97403 , USA .
| | - Michael D Pluth
- Department of Chemistry and Biochemistry , Materials Science Institute , Institute of Molecular Biology , University of Oregon , Eugene , OR 97403 , USA .
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19
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Kharma A, Grman M, Misak A, Domínguez-Álvarez E, Nasim MJ, Ondrias K, Chovanec M, Jacob C. Inorganic Polysulfides and Related Reactive Sulfur–Selenium Species from the Perspective of Chemistry. Molecules 2019; 24:molecules24071359. [PMID: 30959902 PMCID: PMC6479598 DOI: 10.3390/molecules24071359] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 03/28/2019] [Accepted: 03/29/2019] [Indexed: 12/15/2022] Open
Abstract
Polysulfides (H₂Sx) represent a class of reactive sulfur species (RSS) which includes molecules such as H₂S₂, H₂S₃, H₂S₄, and H₂S5, and whose presence and impact in biological systems, when compared to other sulfur compounds, has only recently attracted the wider attention of researchers. Studies in this field have revealed a facet-rich chemistry and biological activity associated with such chemically simple, still unusual inorganic molecules. Despite their chemical simplicity, these inorganic species, as reductants and oxidants, metal binders, surfactant-like "cork screws" for membranes, components of perthiol signalling and reservoirs for inorganic hydrogen sulfide (H₂S), are at the centre of complicated formation and transformation pathways which affect numerous cellular processes. Starting from their chemistry, the hidden presence and various roles of polysulfides in biology may become more apparent, despite their lack of clear analytical fingerprints and often murky biochemical footprints. Indeed, the biological chemistry of H₂Sx follows many unexplored paths and today, the relationship between H₂S and its oxidized H₂Sx species needs to be clarified as a matter of "unmistaken identity". Simultaneously, emerging species, such as HSSeSH and SenS8-n, also need to be considered in earnest.
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Affiliation(s)
- Ammar Kharma
- Division of Bioorganic Chemistry, School of Pharmacy, University of Saarland, D-66123 Saarbruecken, Germany.
| | - Marian Grman
- Institute of Clinical and Translational Research, Biomedical Research Centre, University Science Park for Biomedicine, Slovak Academy of Sciences, 845 05 Bratislava, Slovak.
| | - Anton Misak
- Institute of Clinical and Translational Research, Biomedical Research Centre, University Science Park for Biomedicine, Slovak Academy of Sciences, 845 05 Bratislava, Slovak.
| | - Enrique Domínguez-Álvarez
- Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas (IQOG-CSIC), 28006 Madrid, Spain.
| | - Muhammad Jawad Nasim
- Division of Bioorganic Chemistry, School of Pharmacy, University of Saarland, D-66123 Saarbruecken, Germany.
| | - Karol Ondrias
- Institute of Clinical and Translational Research, Biomedical Research Centre, University Science Park for Biomedicine, Slovak Academy of Sciences, 845 05 Bratislava, Slovak.
| | - Miroslav Chovanec
- Cancer Research Institute, Biomedical Research Centre, University Science Park for Biomedicine, Slovak Academy of Sciences, 845 05 Bratislava, Slovak.
| | - Claus Jacob
- Division of Bioorganic Chemistry, School of Pharmacy, University of Saarland, D-66123 Saarbruecken, Germany.
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20
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Eytel LM, Fargher HA, Haley MM, Johnson DW. The road to aryl CHanion binding was paved with good intentions: fundamental studies, host design, and historical perspectives in CH hydrogen bonding. Chem Commun (Camb) 2019; 55:5195-5206. [PMID: 30944916 DOI: 10.1039/c9cc01460h] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Throughout the design and development of supramolecular receptors for anion binding, many different non-covalent anion-binding motifs have been employed. One motif seen in many host-guest systems is the sometimes weaker, 'non-traditional' aryl CH hydrogen bond. From June Sutor's discovery of the interaction and its subsequent dismissal by the field in the 1960s to today's use of the aryl CH hydrogen bond in synthetic anion receptors, the path our lab took to begin studying this interaction has been influenced by many other researchers in the field. This feature article highlights the history and properties of the CH hydrogen bond, with a particular focus on aryl CH hydrogen bonds in anion recognition. We highlight select recent developments in the field of anion receptors utilizing aryl CH hydrogen bonds, with an emphasis on how this has influenced the evolution of our approach in designing fundamental studies on CH hydrogen bonding and exploiting this interaction in efforts aimed toward preferential anion binding.
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Affiliation(s)
- Lisa M Eytel
- Department of Chemistry & Biochemistry and the Materials Science Institute, University of Oregon, Eugene, OR 97403-1253, USA.
| | - Hazel A Fargher
- Department of Chemistry & Biochemistry and the Materials Science Institute, University of Oregon, Eugene, OR 97403-1253, USA.
| | - Michael M Haley
- Department of Chemistry & Biochemistry and the Materials Science Institute, University of Oregon, Eugene, OR 97403-1253, USA.
| | - Darren W Johnson
- Department of Chemistry & Biochemistry and the Materials Science Institute, University of Oregon, Eugene, OR 97403-1253, USA.
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