1
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Georges T, Ovens JS, Bryce DL. Electrostatic Surface Potentials and Chalcogen-Bonding Motifs of Substituted 2,1,3-Benzoselenadiazoles Probed via 77Se Solid-State NMR Spectroscopy. Chemistry 2024:e202402254. [PMID: 38958873 DOI: 10.1002/chem.202402254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 07/02/2024] [Accepted: 07/03/2024] [Indexed: 07/04/2024]
Abstract
Chalcogen bonds (ChB) are moderately strong, directional, and specific non-covalent interactions that have garnered substantial interest over the last decades. Specifically, the presence of two σ-holes offers great potential for crystal engineering, catalysis, biochemistry, and molecular sensing. However, ChB applications are currently hampered by a lack of methods to characterize and control chalcogen bonds. Here, we report on the influence of various substituents (halogens, cyano, and methyl groups) on the observed self-complementary ChB networks of 2,1,3-benzoselenadiazoles. From molecular electrostatic potential calculations, we show that the electrostatic surface potentials (ESP) of the σ-holes on selenium are largely influenced by the electron-withdrawing character of these substituents. Structural analyses via X-ray diffraction reveal a variety of ChB geometries and binding modes that are rationalized via the computed ESP maps, although the structure of 5,6-dimethyl-2,1,3-benzoselenadiazole also demonstrates the influence of steric interactions. 77Se solid-state magic-angle spinning NMR spectroscopy, in particular the analysis of the selenium chemical shift tensors, is found to be an effective probe able to characterize both structural and electrostatic features of these self-complementary ChB systems. We find a positive correlation between the value of the ESP maxima at the σ-holes and the experimentally measured 77Se isotropic chemical shift, while the skew of the chemical shift tensor is established as a metric which is reflective of the ChB binding motif.
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Affiliation(s)
- Tristan Georges
- Department of Chemistry and Biomolecular Sciences, Centre for Catalysis Research and Innovation, and Nexus for Quantum Technologies, University of Ottawa, 10 Marie Curie Private Ottawa, K1N 6N5, Ontario, Canada
| | - Jeffrey S Ovens
- Department of Chemistry and Biomolecular Sciences, Centre for Catalysis Research and Innovation, and Nexus for Quantum Technologies, University of Ottawa, 10 Marie Curie Private Ottawa, K1N 6N5, Ontario, Canada
| | - David L Bryce
- Department of Chemistry and Biomolecular Sciences, Centre for Catalysis Research and Innovation, and Nexus for Quantum Technologies, University of Ottawa, 10 Marie Curie Private Ottawa, K1N 6N5, Ontario, Canada
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2
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Fellowes T, Sani MA, White JM. Fingerprints of Chalcogen Bonding Revealed Through 77Se-NMR. Chemistry 2024; 30:e202400385. [PMID: 38506412 DOI: 10.1002/chem.202400385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/18/2024] [Accepted: 03/20/2024] [Indexed: 03/21/2024]
Abstract
77Se-NMR is used to characterise several chalcogen bonded complexes of derivatives of the organoselenium drug ebselen, exploring a range of electron demand. NMR titration experiments support the intuitive understanding that chalcogen bond donors bearing more electron withdrawing substituents give rise stronger chalcogen bonds. The chemical shift of the selenium nucleus is also shown to move upfield as it participates in a chalcogen bond. Solid-state NMR is used to explore chalcogen bonding in co-crystals. Due to the lack of molecular reorientation on the NMR timescale in the solid state, the shape of the chemical shift tensor can be determined using this technique. A range of co-crystals are shown to have extremely large chemical shift anisotropy, which suggests a strongly anisotropic electron density distribution around the selenium atom. A single crystal NMR experiment was conducted using one of the co-crystals, affording the absolute orientation of the chemical shift tensor within the crystal. This showed that the selenium nucleus is strongly shielded in the direction of the chalcogen bond (due to the approach of the lone pair of the Lewis base), and strongly deshielded in the perpendicular direction. The orientation of the deshielded axis is consistent with the presence of a second σ-hole which is not participating in a chalcogen bond, showing the profound effect of electron density anisotropy on the chemical shift.
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Affiliation(s)
- Thomas Fellowes
- Bio21 Institute and School of Chemistry, University of Melbourne, Parkville, VIC 3010, Australia
| | - Marc A Sani
- Bio21 Institute and School of Chemistry, University of Melbourne, Parkville, VIC 3010, Australia
| | - Jonathan M White
- Bio21 Institute and School of Chemistry, University of Melbourne, Parkville, VIC 3010, Australia
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3
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Dhaka A, Jeon IR, Fourmigué M. Selective Activation of Chalcogen Bonding: An Efficient Structuring Tool toward Crystal Engineering Strategies. Acc Chem Res 2024; 57:362-374. [PMID: 38275221 DOI: 10.1021/acs.accounts.3c00674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
ConspectusAmong the noncovalent interactions available in the toolbox of crystal engineering, chalcogen bonding (ChB) has recently entered the growing family of σ-hole interactions, following the strong developments based on the halogen bonding (XB) interaction over the last 30 years. The monovalent character of halogens provides halogen bonding directionality and strength. Combined with the extensive organic chemistry of Br and I derivatives, it has led to many applications of XB, in solution (organo-catalysis, anion recognition and transport), in the solid state (cocrystals, conducting materials, fluorescent materials, topochemical reactions, ...), in soft matter (liquid crystals, gels,···), and in biochemistry. The recognition of the presence of two σ-holes on divalent chalcogens and the ability to activate them, as in XB, with electron-withdrawing groups (EWG) has fueled more recent interest in chalcogen bonding. However, despite being identified for many years, ChB still struggles to make a mark due to (i) the underdeveloped synthetic chemistry of heavier Se and Te; (ii) the limited stability of organic chalcogenides, especially tellurides; and (iii) the poor predictability of ChB associated with the presence of two σ-holes. It therefore invites a great deal of attention of molecular chemists to design and develop selected ChB donors, for the scrutiny of fundamentals of ChB and their successful use in different applications. This Account aims to summarize our own contributions in this direction that extend from fundamental studies focused on addressing the lack of directionality/predictability in ChB to a systematic demonstration of its potential, specifically in crystal engineering, and particularly toward anionic networks on the one hand, topochemical reactions on the other hand.In this Account, we share our recent results aimed at recovering with ChB the same degree of strength and predictability found with XB, by focusing on divalent Se and Te systems with two different substituents, one of them with an EWG, to strongly unbalance both σ-holes. For that purpose, we explored this dissymmetrization concept within three chemical families, selenocyanates R-SeCN, alkynyl derivatives R-C≡C-(Se/Te)Me, and o-carborane derivatives. Such compounds were systematically engaged in cocrystals with either halides or neutral bipyridines as ChB acceptors, revealing their strong potential to chelate halides as well as their ability to organize reactive molecules such as alkenes and butadiynes toward [2+2] cycloadditions and polydiacetylene formation, respectively. This selective activation concept is not limited to ChB but can be effectively used on all other σ-hole interactions (pnictogen bond, tetrel bond, etc.) where one needs to control the directionality of the interaction.
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Affiliation(s)
- Arun Dhaka
- Univ Rennes, CNRS, ISCR - UMR 6226 (Institut des Sciences Chimiques de Rennes), Campus de Beaulieu, 35042 Rennes, France
| | - Ie-Rang Jeon
- Univ Rennes, CNRS, ISCR - UMR 6226 (Institut des Sciences Chimiques de Rennes), Campus de Beaulieu, 35042 Rennes, France
| | - Marc Fourmigué
- Univ Rennes, CNRS, ISCR - UMR 6226 (Institut des Sciences Chimiques de Rennes), Campus de Beaulieu, 35042 Rennes, France
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4
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Nag T, Ovens JS, Bryce DL. 77Se and 125Te solid-state NMR and X-ray diffraction structural study of chalcogen-bonded 3,4-dicyano-1,2,5-chalcogenodiazole cocrystals. Acta Crystallogr C Struct Chem 2022; 78:517-523. [PMID: 36196784 DOI: 10.1107/s2053229622008518] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 08/24/2022] [Indexed: 11/10/2022] Open
Abstract
Three novel chalcogen-bonded cocrystals featuring 3,4-dicyano-1,2,5-selenodiazole (C4N4Se) or 3,4-dicyano-1,2,5-tellurodiazole (C4N4Te) as chalcogen-bond donors and hydroquinone (C6H6O2), tetraphenylphosphonium chloride (C24H20P+·Cl-) or tetraethylphosphonium chloride (C8H20P+·Cl-) as chalcogen-bond acceptors have been prepared and characterized by single-crystal X-ray diffraction (XRD), powder X-ray diffraction and 77Se/125Te magic-angle spinning solid-state NMR spectroscopy. The single-crystal XRD results show that the chalcogenodiazole molecules interact with the electron donors through two σ-holes on each of the chalcogen atoms, which results in highly directional and moderately strong chalcogen bonds. Powder XRD confirms that the crystalline phases are preserved upon moderate grinding of the samples for solid-state NMR experiments. Measurement of 77Se and 125Te chemical shift tensors via magic-angle spinning solid-state NMR spectroscopy confirms the number of magnetically unique chalcogen sites in each asymmetric unit and reveals the impact of chalcogen-bond formation on the local electronic structure. These NMR data are further assessed in the context of analogous data for a wider range of crystalline chalcogen-bonded systems.
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Affiliation(s)
- Tamali Nag
- Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie Private, Ottawa, Ontario K1N 6N5, Canada
| | - Jeffrey S Ovens
- Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie Private, Ottawa, Ontario K1N 6N5, Canada
| | - David L Bryce
- Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie Private, Ottawa, Ontario K1N 6N5, Canada
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5
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Alfuth J, Jeannin O, Fourmigué M. Topochemical, Single-Crystal-to-Single-Crystal [2+2] Photocycloadditions Driven by Chalcogen-Bonding Interactions. Angew Chem Int Ed Engl 2022; 61:e202206249. [PMID: 35797220 PMCID: PMC9546344 DOI: 10.1002/anie.202206249] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Indexed: 12/04/2022]
Abstract
The face-to-face association of (E)-1,2-di(4-pyridyl)ethylene (bpen) molecules into rectangular motifs stabilized for the first time by chalcogen bonding (ChB) interactions is shown to provide photoreactive systems leading to cyclobutane formation through single-crystal-to-single-crystal [2+2] photodimerizations. The chelating chalcogen bond donors are based on original aromatic, ortho-substituted bis(selenocyanato)benzene derivatives 1-3, prepared from ortho-diboronic acid bis(pinacol) ester precursors and SeO2 and malononitrile in 75-90 % yield. The very short intramolecular Se⋅⋅⋅Se distance in 1-3 (3.22-3.24 Å), a consequence of a strong intramolecular ChB interaction, expands to 3.52-3.54 Å in the chalcogen-bonded adducts with bpen, a distance (<4 Å) well adapted to the face-to-face association of the bpen molecules into the reactive position toward photochemical dimerization.
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Affiliation(s)
- Jan Alfuth
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), 35000, Rennes, France
- Department of Organic Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 80-233, Gdańsk, Poland
| | - Olivier Jeannin
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), 35000, Rennes, France
| | - Marc Fourmigué
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), 35000, Rennes, France
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7
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Alfuth J, Jeannin O, Fourmigue M. Topochemical, Single‐Crystal‐to‐Single‐Crystal [2+2] Photocycloadditions Driven by Chalcogen‐Bonding Interactions. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jan Alfuth
- Gdańsk University of Technology: Politechnika Gdanska Organic chemistry Gdansk POLAND
| | | | - Marc Fourmigue
- UMR 6226 CNRS-Universite Rennes1 Institut des Sciences Chimiques de Rennes Campus de BeaulieuBatiment 10C 35042 Rennes FRANCE
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8
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Kumar V, Triglav M, Morin VM, Bryce DL. Predictability of Chalcogen-Bond-Driven Crystal Engineering: An X-ray Diffraction and Selenium-77 Solid-State NMR Investigation of Benzylic Selenocyanate Cocrystals. ACS ORGANIC & INORGANIC AU 2022; 2:252-260. [PMID: 36855468 PMCID: PMC9954200 DOI: 10.1021/acsorginorgau.1c00051] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We describe a series of new chalcogen-bonded cocrystals featuring 1,2-bis(selenocyanatomethyl)benzene (DSN) and 1,2,4,5-tetrakis(selenocyanatomethyl)-benzene (TSN) as the donor moieties and a variety of Lewis bases such as onium halides, N-oxides, and pyridine-containing heterocycles as the acceptors. Single-crystal X-ray diffraction demonstrates that, in every case, the selenocyanates consistently interact with the acceptor molecules through strong and directional Se···X chalcogen-bonds (ChBs) (X = halides, oxygen, and nitrogen). 77Se solid-state nuclear magnetic resonance spectroscopy was applied to measure selenium chemical shift tensor magnitudes and to explore potential correlations between these tensor elements and the local ChB geometry. In every case, the isotropic 77Se chemical shift decreases, and the chemical shift tensor span increases upon cocrystallization of DSN with the various ChB acceptors. This work contributes to a growing body of knowledge concerning the predictability and robustness of chalcogen bonds in crystal engineering as well as the NMR response to the establishment of chalcogen bonds. In particular, among the systems studied here, highly linear chalcogen bonds are formed exclusively at the stronger σ-hole of each and every selenium atom regardless of the size, charge, or denticity of the electron donor moiety.
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9
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Navarro-García E, Galmés B, Esquivel JL, Velasco MD, Bastida A, Zapata F, Caballero A, Frontera A. Host-guest complexes vs. supramolecular polymers in chalcogen bonding receptors: an experimental and theoretical study. Dalton Trans 2022; 51:1325-1332. [PMID: 35018911 DOI: 10.1039/d1dt03925c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We describe here a comparative study between two tripodal anion receptors based on selenophene as the binding motif. The receptors use benzene or perfluorobenzene as a spacer. The presence of the electron-withdrawing ring activates the selenium atom for anion recognition inducing the formation of self-assembled supramolecular structures in the presence of chloride or bromide anions, which are bonded by the cooperative action of hydrogen and chalcogen bonding interactions. DOSY NMR and DLS experiments provided evidence for the formation of the supramolecular structures only in the presence of a perfluorobenzene based anion receptor while the analogous benzene one shows the classical anion/receptor complex without the participation of the selenium atom. The energetic and geometric features of the complexes of both receptors with the Cl and Br anions have been studied in solution. These results combined with the molecular electrostatic potential (MEP) surface plots allow us to rationalize the quite different behaviors of both receptors observed experimentally.
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Affiliation(s)
| | - Bartomeu Galmés
- Department of Chemistry, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, 07122 Palma de Mallorca, Spain.
| | - José Luis Esquivel
- Departamento de Química Orgánica, Universidad de Murcia, Campus de Espinardo, 30100, Murcia, Spain.
| | - María D Velasco
- Departamento de Química Orgánica, Universidad de Murcia, Campus de Espinardo, 30100, Murcia, Spain.
| | - Adolfo Bastida
- Departamento de Química Física, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain
| | - Fabiola Zapata
- Departamento de Química Orgánica, Universidad de Murcia, Campus de Espinardo, 30100, Murcia, Spain.
| | - Antonio Caballero
- Departamento de Química Orgánica, Universidad de Murcia, Campus de Espinardo, 30100, Murcia, Spain.
| | - Antonio Frontera
- Department of Chemistry, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, 07122 Palma de Mallorca, Spain.
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10
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Beau M, Lee S, Kim S, Han WS, Jeannin O, Fourmigué M, Aubert E, Espinosa E, Jeon IR. Strong σ-Hole Activation on Icosahedral Carborane Derivatives for a Directional Halide Recognition. Angew Chem Int Ed Engl 2021; 60:366-370. [PMID: 32926491 DOI: 10.1002/anie.202010462] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Indexed: 12/14/2022]
Abstract
Crystal engineering based on σ-hole interactions is an emerging approach for realization of new materials with higher complexity. Neutral inorganic clusters derived from 1,2-dicarba-closo-dodecaborane, substituted with -SeMe, -TeMe, and -I moieties on both skeletal carbon vertices are experimentally demonstrated herein as outstanding chalcogen- and halogen-bond donors. In particular, these new molecules strongly interact with halide anions in the solid-state. The halide ions are coordinated by one or two donor groups (μ1 - and μ2 -coordinations), to stabilize a discrete monomer or dimer motifs to 1D supramolecular zig-zag chains. Crucially, the observed chalcogen bond and halogen bond interactions feature remarkably short distances and high directionality. Electrostatic potential calculations further demonstrate the efficiency of the carborane derivatives, with Vs,max being similar or even superior to that of reference organic halogen-bond donors, such as iodopentafluorobenzene.
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Affiliation(s)
- Maxime Beau
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), Campus de Beaulieu, 35000, Rennes, France
| | - Sunhee Lee
- Department of Chemistry, Seoul Women's University, Seoul, 01797, Republic of Korea
| | - Sooyeon Kim
- Department of Chemistry, Seoul Women's University, Seoul, 01797, Republic of Korea
| | - Won-Sik Han
- Department of Chemistry, Seoul Women's University, Seoul, 01797, Republic of Korea
| | - Olivier Jeannin
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), Campus de Beaulieu, 35000, Rennes, France
| | - Marc Fourmigué
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), Campus de Beaulieu, 35000, Rennes, France
| | - Emmanuel Aubert
- Laboratoire CRM2, UMR CNRS 7036, Institut Jean Barriol, Université de Lorraine, BP 70239, 54506, Vandoeuvre-lès-Nancy, France
| | - Enrique Espinosa
- Laboratoire CRM2, UMR CNRS 7036, Institut Jean Barriol, Université de Lorraine, BP 70239, 54506, Vandoeuvre-lès-Nancy, France
| | - Ie-Rang Jeon
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), Campus de Beaulieu, 35000, Rennes, France
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11
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Beau M, Lee S, Kim S, Han W, Jeannin O, Fourmigué M, Aubert E, Espinosa E, Jeon I. Strong
σ
‐Hole Activation on Icosahedral Carborane Derivatives for a Directional Halide Recognition. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202010462] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Maxime Beau
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) Campus de Beaulieu 35000 Rennes France
| | - Sunhee Lee
- Department of Chemistry Seoul Women's University Seoul 01797 Republic of Korea
| | - Sooyeon Kim
- Department of Chemistry Seoul Women's University Seoul 01797 Republic of Korea
| | - Won‐Sik Han
- Department of Chemistry Seoul Women's University Seoul 01797 Republic of Korea
| | - Olivier Jeannin
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) Campus de Beaulieu 35000 Rennes France
| | - Marc Fourmigué
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) Campus de Beaulieu 35000 Rennes France
| | - Emmanuel Aubert
- Laboratoire CRM2 UMR CNRS 7036 Institut Jean Barriol Université de Lorraine BP 70239, 54506 Vandoeuvre-lès-Nancy France
| | - Enrique Espinosa
- Laboratoire CRM2 UMR CNRS 7036 Institut Jean Barriol Université de Lorraine BP 70239, 54506 Vandoeuvre-lès-Nancy France
| | - Ie‐Rang Jeon
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) Campus de Beaulieu 35000 Rennes France
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12
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Huynh HT, Jeannin O, Aubert E, Espinosa E, Fourmigué M. Chalcogen bonding interactions in chelating, chiral bis(selenocyanates). NEW J CHEM 2021. [DOI: 10.1039/d0nj05293k] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Both anti (racemic mixture) and syn (meso) forms of a chiral, chelating chalcogen bond (ChB) donor interact with halides through short Se⋯X− directional interactions.
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Affiliation(s)
- Huu-Tri Huynh
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F-35000 Rennes
- France
| | - Olivier Jeannin
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F-35000 Rennes
- France
| | | | | | - Marc Fourmigué
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F-35000 Rennes
- France
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13
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Alfuth J, Zadykowicz B, Sikorski A, Połoński T, Eichstaedt K, Olszewska T. Effect of Aromatic System Expansion on Crystal Structures of 1,2,5-Thia- and 1,2,5-Selenadiazoles and Their Quaternary Salts: Synthesis, Structure, and Spectroscopic Properties. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4908. [PMID: 33142898 PMCID: PMC7663733 DOI: 10.3390/ma13214908] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/23/2020] [Accepted: 10/28/2020] [Indexed: 01/22/2023]
Abstract
Rational manipulation of secondary bonding interactions is a crucial factor in the construction of new chalcogenadiazole-based materials. This article reports detailed experimental studies on phenanthro[9,10-c][1,2,5]chalcogenadiazolium and 2,1,3-benzochalcogenadiazolium salts and their precursors. The compounds were synthesized, characterized employing NMR and UV-Vis spectroscopy. TD-DFT calculations were also performed. The influence of the size of the aromatic system on the molecular motifs formed by the compounds in the solid state has been studied by means of single-crystal X-ray diffraction. In case of the salts, the nature of an anion was also taken into consideration. The results show that cyclic [E···N]2 supramolecular synthon connects neighboring molecules of phenanthro[9,10-c][1,2,5]chalcogenadiazoles, with a relatively large aromatic system, in dimers regardless of the chalcogen atom in the molecule. Both N-methyl-2,1,3-benzothiadiazolium and N-methylphenanthro[9,10-c][1,2,5]chalcogenadiazolium cations have a strong affinity for triflate and iodide anions, therefore the formation of S···N or Se···N secondary bonding interactions is observed only in two out of the eight quaternary salts. Less coordinating anions must be used to enable the building blocks studied to form cyclic [E···N]2 synthons. Moreover, for two of the triflate salts, which are isostructural, a new supramolecular motif has been observed.
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Affiliation(s)
- Jan Alfuth
- Department of Organic Chemistry, Gdańsk University of Technology, 80-233 Gdańsk, Poland; (J.A.); (T.P.); (K.E.)
| | - Beata Zadykowicz
- Luminescence Research Group, Faculty of Chemistry, University of Gdańsk, 80-308 Gdańsk, Poland;
| | - Artur Sikorski
- Laboratory of Crystallochemistry, Faculty of Chemistry, University of Gdańsk, 80-308 Gdańsk, Poland;
| | - Tadeusz Połoński
- Department of Organic Chemistry, Gdańsk University of Technology, 80-233 Gdańsk, Poland; (J.A.); (T.P.); (K.E.)
| | - Katarzyna Eichstaedt
- Department of Organic Chemistry, Gdańsk University of Technology, 80-233 Gdańsk, Poland; (J.A.); (T.P.); (K.E.)
| | - Teresa Olszewska
- Department of Organic Chemistry, Gdańsk University of Technology, 80-233 Gdańsk, Poland; (J.A.); (T.P.); (K.E.)
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14
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Hernández-Ayala LF, Reina M, Flores-Alamo M, Ruiz-Azuara L. Pyridyl based mono and di-selenoethers: Synthesis, characterization and DFT study. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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Navarro-García E, Galmés B, Velasco MD, Frontera A, Caballero A. Anion Recognition by Neutral Chalcogen Bonding Receptors: Experimental and Theoretical Investigations. Chemistry 2020; 26:4706-4713. [PMID: 31957917 DOI: 10.1002/chem.201905786] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/19/2020] [Indexed: 12/14/2022]
Abstract
The utilization of neutral receptors for the molecular recognition of anions based on chalcogen bonding (ChB) is an undeveloped area of host-guest chemistry. In this manuscript, the synthesis of two new families of sulfur, selenium, and tellurium-based ChB binding motifs are reported. The stability of the thiophene, selenophene, and tellurophene binding motifs has enabled the determination of the association constants for ChB halide anion binding in the polar aprotic solvent THF by 1 H, 77 Se, and 125 Te NMR experiments. Two different aromatic cores are used and one or two Ch-binding motifs are incorporated with the purpose of encapsulating the anion, offering up to two concurrent chalcogen bonds. Theoretical calculations and NMR experiments reveal that, for S and Se receptors, hydrogen-bonding interactions involving the acidic H atom adjacent to the chalcogen atom are energetically favored over the ChB interaction. However, for the tellurophene binding motif, the σ-hole interaction is competitive and more favored than the hydrogen bond.
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Affiliation(s)
| | - Bartomeu Galmés
- Department of Chemistry, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, 07122, Palma, de Mallorca, Spain
| | - María D Velasco
- Departamento de Química Orgánica, Universidad de Murcia, Campus de Espinardo, 30100, Murcia, Spain
| | - Antonio Frontera
- Department of Chemistry, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, 07122, Palma, de Mallorca, Spain
| | - Antonio Caballero
- Departamento de Química Orgánica, Universidad de Murcia, Campus de Espinardo, 30100, Murcia, Spain
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16
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Kumar V, Xu Y, Bryce DL. Double Chalcogen Bonds: Crystal Engineering Stratagems via Diffraction and Multinuclear Solid-State Magnetic Resonance Spectroscopy. Chemistry 2020; 26:3275-3286. [PMID: 31794082 DOI: 10.1002/chem.201904795] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Indexed: 12/22/2022]
Abstract
Group 16 chalcogens potentially provide Lewis-acidic σ-holes, which are able to form attractive supramolecular interactions with electron rich partners through chalcogen bonds. Here, a multifaceted experimental and computational study of a large series of novel chalcogen-bonded cocrystals, prepared using the principles of crystal engineering, is presented. Single-crystal X-ray diffraction studies reveal that dicyanoselenadiazole and dicyanotelluradiazole derivatives work as promising supramolecular synthons with the ability to form double chalcogen bonds with a wide range of electron donors including halides and oxygen- and nitrogen-containing heterocycles. Extensive 77 Se and 125 Te solid-state nuclear magnetic resonance spectroscopic investigations of cocrystals establish correlations between the NMR parameters of selenium and tellurium and the local chalcogen bonding geometry. The relationships between the electronic environment of the chalcogen bond and the 77 Se and 125 Te chemical shift tensors were elucidated through a natural localized molecular orbital density functional theory analysis. This systematic study of chalcogen-bond-based crystal engineering lays the foundations for the preparation of the various multicomponent systems and establishes solid-state NMR protocols to detect these interactions in powdered materials.
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Affiliation(s)
- Vijith Kumar
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie Private, Ottawa, Ontario, K1N 6N5, Canada
| | - Yijue Xu
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie Private, Ottawa, Ontario, K1N 6N5, Canada
| | - David L Bryce
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie Private, Ottawa, Ontario, K1N 6N5, Canada
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17
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Kumar V, Xu Y, Leroy C, Bryce DL. Direct investigation of chalcogen bonds by multinuclear solid-state magnetic resonance and vibrational spectroscopy. Phys Chem Chem Phys 2020; 22:3817-3824. [DOI: 10.1039/c9cp06267j] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We report a multifaceted experimental and computational study of three self-complementary chalcogen-bond donors as well as a series of seven chalcogen bonded cocrystals.
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Affiliation(s)
- Vijith Kumar
- Department of Chemistry and Biomolecular Sciences
- University of Ottawa
- 10 Marie Curie Private
- Ottawa
- Canada
| | - Yijue Xu
- Department of Chemistry and Biomolecular Sciences
- University of Ottawa
- 10 Marie Curie Private
- Ottawa
- Canada
| | - César Leroy
- Department of Chemistry and Biomolecular Sciences
- University of Ottawa
- 10 Marie Curie Private
- Ottawa
- Canada
| | - David L. Bryce
- Department of Chemistry and Biomolecular Sciences
- University of Ottawa
- 10 Marie Curie Private
- Ottawa
- Canada
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18
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Fourmigué M, Dhaka A. Chalcogen bonding in crystalline diselenides and selenocyanates: From molecules of pharmaceutical interest to conducting materials. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2019.213084] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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19
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Daolio A, Scilabra P, Di Pietro ME, Resnati C, Rissanen K, Resnati G. Binding motif of ebselen in solution: chalcogen and hydrogen bonds team up. NEW J CHEM 2020. [DOI: 10.1039/d0nj04647g] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Ebselen, a compound active against SARS-CoV-2, forms a bifurcated supramolecular synthon thanks to chalcogen bond and hydrogen bond cooperation.
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Affiliation(s)
- Andrea Daolio
- Department of Chemistry
- Materials
- Chemical Engineering “Giulio Natta”
- Milano I-20131
- Italy
| | - Patrick Scilabra
- Department of Chemistry
- Materials
- Chemical Engineering “Giulio Natta”
- Milano I-20131
- Italy
| | | | - Chiara Resnati
- Recidency Program Clinical Pharmacology & Toxicology
- Università degli Studi della Campania “Luigi Vanvitelli”
- Napoli I-80138
- Italy
| | - Kari Rissanen
- Department Chemistry
- University of Jyväskylä
- Jyväskylä
- Finland
| | - Giuseppe Resnati
- Department of Chemistry
- Materials
- Chemical Engineering “Giulio Natta”
- Milano I-20131
- Italy
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20
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Lee LM, Corless V, Luu H, He A, Jenkins H, Britten JF, Adam Pani F, Vargas-Baca I. Synthetic and structural investigations of bis(N-alkyl-benzoselenadiazolium) cations. Dalton Trans 2019; 48:12541-12548. [DOI: 10.1039/c9dt02311a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A variety of supramolecular structures is formed by selenadiazolium cations linked by hydrocarbon bridges.
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Affiliation(s)
- Lucia Myongwon Lee
- McMaster University
- Department of Chemistry and Chemical Biology
- Hamilton
- Canada L8S 4 M1
| | - Victoria Corless
- McMaster University
- Department of Chemistry and Chemical Biology
- Hamilton
- Canada L8S 4 M1
| | - Helen Luu
- McMaster University
- Department of Chemistry and Chemical Biology
- Hamilton
- Canada L8S 4 M1
| | - Allan He
- McMaster University
- Department of Chemistry and Chemical Biology
- Hamilton
- Canada L8S 4 M1
| | - Hilary Jenkins
- McMaster University
- Department of Chemistry and Chemical Biology
- Hamilton
- Canada L8S 4 M1
| | - James F. Britten
- McMaster University
- Department of Chemistry and Chemical Biology
- Hamilton
- Canada L8S 4 M1
| | - Faisal Adam Pani
- McMaster University
- Department of Chemistry and Chemical Biology
- Hamilton
- Canada L8S 4 M1
| | - Ignacio Vargas-Baca
- McMaster University
- Department of Chemistry and Chemical Biology
- Hamilton
- Canada L8S 4 M1
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