1
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Aragoni M, Arca M, Caltagirone C, Castellano C, Demartin F, Jones PG, Pivetta T, Podda E, Lippolis V, Murgia S, Picci G. Role of the Solvent in the Reactivity of Bis-4-imidazoline-2-selone Derivatives toward I 2: An Experimental and Theoretical Approach. J Org Chem 2022; 87:15448-15465. [DOI: 10.1021/acs.joc.2c01982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- M.Carla Aragoni
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, I-09042 Monserrato, Cagliari, Italy
| | - Massimiliano Arca
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, I-09042 Monserrato, Cagliari, Italy
| | - Claudia Caltagirone
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, I-09042 Monserrato, Cagliari, Italy
| | - Carlo Castellano
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, I-20133Milano, Italy
| | - Francesco Demartin
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, I-20133Milano, Italy
| | - Peter G. Jones
- Institut für Anorganische und Analytische Chemie der Technischen Universität Braunschweig, Hagenring 30, D-38106Braunschweig, Germany
| | - Tiziana Pivetta
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, I-09042 Monserrato, Cagliari, Italy
| | - Enrico Podda
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, I-09042 Monserrato, Cagliari, Italy
- Centro Servizi di Ateneo per la Ricerca-CeSAR, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, 09042 Monserrato, Cagliari, Italy
| | - Vito Lippolis
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, I-09042 Monserrato, Cagliari, Italy
| | - Sergio Murgia
- Dipartimento di Scienze della Vita e dell’ambiente, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, I-09042 Monserrato, Cagliari, Italy
| | - Giacomo Picci
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, I-09042 Monserrato, Cagliari, Italy
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2
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Moussa Z, Kaddoura R, Saadeh HA, Abutaha N, Ahmed SA. Highly bioactive novel aryl-, benzyl-, and piperazine-selenoureas: synthesis, structural characterization and in vitro biological evaluation. Heliyon 2022; 8:e10709. [PMID: 36185149 PMCID: PMC9520223 DOI: 10.1016/j.heliyon.2022.e10709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 07/23/2022] [Accepted: 09/15/2022] [Indexed: 11/29/2022] Open
Abstract
Selenoureas are widespread as useful elements for constructing important species and biologically active molecules. Finding an efficient and straightforward method to prepare this motif and biologically screen derivatives thereof is crucial. Herein, we demonstrate the effectiveness of using ethanol as a solvent in the preparation of various substituted aryl-, benzyl-, and piperazine-selenoureas from isoselenocyanates and amines. The synthetic method includes mild reaction conditions, large substrate scope, and good isolated yields. Biological evaluation of the prepared products on MDA-MB-231 and MCF-7 cancer cell lines revealed several remarkably active compounds (IC50 < 10 μΜ) with the best one exhibiting IC50 values of 1.8 μΜ and 1.2 μΜ observed against the challenging former triple-negative breast cancer cell line and the latter one, respectively. The chemical structures of all new compounds were fully characterized by multinuclear nuclear magnetic resonance (NMR) spectroscopy and high accuracy mass measurements.
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Affiliation(s)
- Ziad Moussa
- Department of Chemistry, College of Science, United Arab Emirates University, P. O. Box 15551, Al Ain, United Arab Emirates
| | - Ranem Kaddoura
- Department of Chemistry, College of Science, United Arab Emirates University, P. O. Box 15551, Al Ain, United Arab Emirates
| | - Haythem A Saadeh
- Department of Chemistry, School of Science, The University of Jordan, Amman 11942, Jordan
| | - Nael Abutaha
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh, Saudi Arabia
| | - Saleh A Ahmed
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah 21955, Saudi Arabia.,Department of Chemistry, Faculty of Science, Assiut University, 71516 Assiut, Egypt
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3
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Rai RK, Karri R, Dubey KD, Roy G. Regulation of Tyrosinase Enzyme Activity by Glutathione Peroxidase Mimics. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:9730-9747. [PMID: 35861245 DOI: 10.1021/acs.jafc.2c02359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Hydrogen peroxide plays a crucial role in the melanogenesis process by regulating the activity of the key melanin-forming enzyme tyrosinase, responsible for the browning of fruits, vegetables, and seafood. Therefore, a molecule with dual activities, both efficient tyrosinase inhibition and strong hydrogen peroxide degrading ability, may act as a promising antibrowning agent. Herein, we report highly efficient selone-based mushroom tyrosinase inhibitors 2 and 3 with remarkable glutathione peroxidase (GPx) enzyme-like activity. The presence of benzimidazole moiety enhances the tyrosinase inhibition efficiency of selone 2 (IC50 = 0.4 μM) by almost 600 times higher than imidazole-based selone 1 (IC50 = 238 μM). Interestingly, the addition of another aromatic ring to the benzimidazole moiety has led to the development of an efficient lipid-soluble tyrosinase inhibitor 3 (IC50 = 2.4 μM). The selenium center and the -NH group of 2 and 3 are extremely crucial to exhibit high GPx-like activity and tyrosinase inhibition potency. The hydrophobic moiety of the inhibitors (2 and 3) further assists them in tightly binding at the active site of the enzyme and facilitates the C═Se group to strongly coordinate with the copper ions. Inhibitor 2 exhibited excellent antibrowning and polyphenol oxidase inhibition properties in banana and apple juice extracts.
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Affiliation(s)
- Rakesh Kumar Rai
- Department of Chemistry, Indian Institute of Technology Tirupati, Tirupati, Andhra Pradesh 517506, India
| | - Ramesh Karri
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, Gautam Buddha Nagar, Uttar Pradesh 201314, India
| | - Kshatresh Dutta Dubey
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, Gautam Buddha Nagar, Uttar Pradesh 201314, India
| | - Gouriprasanna Roy
- Department of Chemistry, Indian Institute of Technology Tirupati, Tirupati, Andhra Pradesh 517506, India
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4
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Plaza‐Lozano D, Conde‐Gallardo A, Olguín J. Spin Crossover vs. High‐Spin Iron(II) Complexes in N
4
S
2
Coordination Sphere Containing Picolyl‐Thioether Ligands and NCE (E=S, Se and BH
3
) Co‐Ligands. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100355] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Diego Plaza‐Lozano
- Departamento de Química Centro de Investigación y de Estudios Avanzados del IPN (Cinvestav) Avenida IPN 2508, Col. San Pedro Zacatenco Ciudad de México 07360 México
| | - Agustín Conde‐Gallardo
- Departamento de Física Centro de Investigación y de Estudios Avanzados del IPN (Cinvestav) Avenida IPN 2508, Col. San Pedro Zacatenco Ciudad de México 07360 México
| | - Juan Olguín
- Departamento de Química Centro de Investigación y de Estudios Avanzados del IPN (Cinvestav) Avenida IPN 2508, Col. San Pedro Zacatenco Ciudad de México 07360 México
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5
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Huang L, Huang S, Zhang Z, Cao L, Xu X, Yan X. Mesoionic-Carbene-Stabilized Thiophosphoryl Cation (PS+). Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00071] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Linwei Huang
- Department of Chemistry, Renmin University of China, Beijing 100872, People’s Republic of China
| | - Shiqing Huang
- Department of Chemistry, Renmin University of China, Beijing 100872, People’s Republic of China
| | - Zengyu Zhang
- Department of Chemistry, Renmin University of China, Beijing 100872, People’s Republic of China
| | - Lei Cao
- Department of Chemistry, Renmin University of China, Beijing 100872, People’s Republic of China
| | - Xingyu Xu
- Department of Chemistry, Renmin University of China, Beijing 100872, People’s Republic of China
| | - Xiaoyu Yan
- Department of Chemistry, Renmin University of China, Beijing 100872, People’s Republic of China
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6
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Mannarsamy M, Prabusankar G. Rare proximity enforced copper hydrogen interactions in copper( i)-chalcogenones. NEW J CHEM 2021. [DOI: 10.1039/d1nj00397f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Homoleptic tetra-coordinated copper(i)-chalcogenone complexes have been reported with rare proximity-enforced intramolecular Cu⋯H–C(sp3) hydrogen bonding interactions.
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7
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A physiological examination of the antioxidant ability of super tocopherol derivatives. Struct Chem 2020. [DOI: 10.1007/s11224-020-01585-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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8
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Vaddamanu M, Prabusankar G. Chalcogen Bonding Induced Tetraselenides from Twisted Diselenides. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000275] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Moulali Vaddamanu
- Department of Chemistry Indian Institute of Technology Hyderabad Kandi 502 285 Sangareddy Telangana India
| | - Ganesan Prabusankar
- Department of Chemistry Indian Institute of Technology Hyderabad Kandi 502 285 Sangareddy Telangana India
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9
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Plaza‐Lozano D, Morales‐Martínez D, González FJ, Olguín J. Homoleptic Mononuclear Tris‐Chelate Complexes of Fe
II
, Co
II
, Ni
II
, and Zn
II
Based on a Redox‐Active Imidazolyl‐2‐thione Ligand: Structural and Electrochemical Correlation. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000120] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Diego Plaza‐Lozano
- Departamento de Química Centro de Investigación y de Estudios Avanzados del IPN (Cinvestav) Avenida IPN 2508, Col. San Pedro Zacatenco 07360 Ciudad de México México
| | - Daniel Morales‐Martínez
- Departamento de Química Centro de Investigación y de Estudios Avanzados del IPN (Cinvestav) Avenida IPN 2508, Col. San Pedro Zacatenco 07360 Ciudad de México México
| | - Felipe J. González
- Departamento de Química Centro de Investigación y de Estudios Avanzados del IPN (Cinvestav) Avenida IPN 2508, Col. San Pedro Zacatenco 07360 Ciudad de México México
| | - Juan Olguín
- Departamento de Química Centro de Investigación y de Estudios Avanzados del IPN (Cinvestav) Avenida IPN 2508, Col. San Pedro Zacatenco 07360 Ciudad de México México
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10
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Ho LP, Körner L, Bannenberg T, Tamm M. Chalcogen complexes of anionic N-heterocyclic carbenes. Dalton Trans 2020; 49:13207-13217. [DOI: 10.1039/d0dt02392b] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Chalcogen complexes of anionic N-heterocyclic carbenes were isolated as lithium salts and their protonation and oxidation were studied.
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Affiliation(s)
- Luong Phong Ho
- Institut für Anorganische und Analytische Chemie
- Technische Universität Braunschweig
- 38106 Brauschweig
- Germany
| | - Lukas Körner
- Institut für Anorganische und Analytische Chemie
- Technische Universität Braunschweig
- 38106 Brauschweig
- Germany
| | - Thomas Bannenberg
- Institut für Anorganische und Analytische Chemie
- Technische Universität Braunschweig
- 38106 Brauschweig
- Germany
| | - Matthias Tamm
- Institut für Anorganische und Analytische Chemie
- Technische Universität Braunschweig
- 38106 Brauschweig
- Germany
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11
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Beheshti A, Mousavifard ES, Zargar B, Mayer P, Rezatofighi SE. Synthesis and dye adsorption studies of the {dibromo(1,1′-(1,2-ethanediyl)bis(3-methyl-imidazole-2-thione)dicopper( i)} n polymer and its conversion to CuO nanospheres for photocatalytic and antibacterial applications. NEW J CHEM 2020. [DOI: 10.1039/d0nj01721c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A new copper polymer was used as a dye adsorbent and CuO precursor. The CuO nanospheres showed good performances for photocatalytic and antibacterial applications.
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Affiliation(s)
- Azizolla Beheshti
- Department of Chemistry
- Faculty of Sciences
- Shahid Chamran University of Ahvaz
- Ahvaz
- Iran
| | | | - Behrooz Zargar
- Department of Chemistry
- Faculty of Sciences
- Shahid Chamran University of Ahvaz
- Ahvaz
- Iran
| | - Peter Mayer
- LMU München Department Chemie
- Butenandtstrasse
- München
- Germany
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12
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Quinlivan PJ, Chaijan MR, Palmer JH, Shlian DG, Parkin G. Coordination of 1-methyl-1,3-dihydro-2 H-benzimidazole-2-selone to zinc and cadmium: Monotonic and non-monotonic bond length variations for [H(sebenzim Me)] 2MCl 2 complexes (M = Zn, Cd, Hg). Polyhedron 2019; 164:185-194. [PMID: 31333278 PMCID: PMC6644719 DOI: 10.1016/j.poly.2019.01.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The reactions of 1-methyl-1,3-dihydro-2H-benzimidazole-2-selone, H(sebenzimMe), towards the zinc and cadmium halides, MX2 (M = Zn, Cd; X = Cl, Br, I), afford the adducts, [H(sebenzimMe)]2MX2, which have been structurally characterized by X-ray diffraction. The halide ligands of each of these complexes participate in hydrogen bonding interactions with the imidazole N-H moieties, although the nature of the interactions depends on the halide. Specifically, the chloride and bromide derivatives, [H(sebenzimMe)]2ZnX2 and [H(sebenzimMe)]2CdX2 (X = Cl, Br), exhibit two intramolecular N-H•••X interactions, whereas the iodide derivatives, [H(sebenzimMe)]2ZnI2 and [H(sebenzimMe)]2CdI2, exhibit only one intramolecular N-H•••I interaction. Comparison of the M-Se and M-Cl bond lengths of the chloride series, [H(sebenzimMe)]2MCl2 (M = Zn, Cd, Hg), indicates that while the average M-Cl bond lengths progressively increase as the metal becomes heavier, the variation in M-Se bond length exhibits a non-monotonic trend, with the Cd-Se bond being the longest. These different trends provide an interesting subtlety concerned with use of covalent radii in predicting bond length differences. In addition to tetrahedral [H(sebenzimMe)]2CdCl2, [H(sebenzimMe)]3,CdCl2•[H(sebenzim)Me]4CdCl2, which features both five-coordinate and six-coordinate coordinate centers, has also been structurally characterized. Finally, the reaction between CdI2 and H(sebenzimMe) at elevated temperatures affords the 1-methylbenzimidazole complex, [H(sebenzimMe)]-[H(benzimMe)]CdI2, a transformation that is associated with cleavage of the C-Se bond.
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Affiliation(s)
| | | | - Joshua H Palmer
- Department of Chemistry, Columbia University, New York, New York 10027, USA
| | - Daniel G Shlian
- Department of Chemistry, Columbia University, New York, New York 10027, USA
| | - Gerard Parkin
- Department of Chemistry, Columbia University, New York, New York 10027, USA
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13
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Doddi A, Peters M, Tamm M. N-Heterocyclic Carbene Adducts of Main Group Elements and Their Use as Ligands in Transition Metal Chemistry. Chem Rev 2019; 119:6994-7112. [PMID: 30983327 DOI: 10.1021/acs.chemrev.8b00791] [Citation(s) in RCA: 290] [Impact Index Per Article: 58.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
N-Heterocyclic carbenes (NHC) are nowadays ubiquitous and indispensable in many research fields, and it is not possible to imagine modern transition metal and main group element chemistry without the plethora of available NHCs with tailor-made electronic and steric properties. While their suitability to act as strong ligands toward transition metals has led to numerous applications of NHC complexes in homogeneous catalysis, their strong σ-donating and adaptable π-accepting abilities have also contributed to an impressive vitalization of main group chemistry with the isolation and characterization of NHC adducts of almost any element. Formally, NHC coordination to Lewis acids affords a transfer of nucleophilicity from the carbene carbon atom to the attached exocyclic moiety, and low-valent and low-coordinate adducts of the p-block elements with available lone pairs and/or polarized carbon-element π-bonds are able to act themselves as Lewis basic donor ligands toward transition metals. Accordingly, the availability of a large number of novel NHC adducts has not only produced new varieties of already existing ligand classes but has also allowed establishment of numerous complexes with unusual and often unprecedented element-metal bonds. This review aims at summarizing this development comprehensively and covers the usage of N-heterocyclic carbene adducts of the p-block elements as ligands in transition metal chemistry.
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Affiliation(s)
- Adinarayana Doddi
- Technische Universität Braunschweig, Institut für Anorganische und Analytische Chemie, Hagenring 30, 38106 Braunschweig, Germany
| | - Marius Peters
- Technische Universität Braunschweig, Institut für Anorganische und Analytische Chemie, Hagenring 30, 38106 Braunschweig, Germany
| | - Matthias Tamm
- Technische Universität Braunschweig, Institut für Anorganische und Analytische Chemie, Hagenring 30, 38106 Braunschweig, Germany
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14
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Jeong H, Kang Y, Kim J, Kim BK, Hong S. Factors that determine thione(thiol)-disulfide interconversion in a bis(thiosemicarbazone) copper(ii) complex. RSC Adv 2019; 9:9049-9052. [PMID: 35517656 PMCID: PMC9062045 DOI: 10.1039/c9ra01115c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 03/07/2019] [Indexed: 11/21/2022] Open
Abstract
Solvent-, acidity-, and redox-responsive thione(thiol)-disulfide interconversion were achieved by a dinuclear copper(ii) complex bearing a bis(thiosemicarbazone) (bTSC) ligand. The role of copper(ii) ion coordination was rationalized by parallel comparison with a bare bTSC ligand and zinc(ii) bTSC complexes under identical reaction conditions.
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Affiliation(s)
- Haewon Jeong
- Department of Chemistry, Sookmyung Women's University Seoul 04310 Korea
| | - Yeji Kang
- Department of Chemistry, Sookmyung Women's University Seoul 04310 Korea
| | - Jin Kim
- Western Seoul Centre, Korea Basic Science Institute Seoul 03759 Republic of Korea
| | - Byung-Kwon Kim
- Department of Chemistry, Sookmyung Women's University Seoul 04310 Korea
| | - Seungwoo Hong
- Department of Chemistry, Sookmyung Women's University Seoul 04310 Korea
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15
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A Computational Investigation of the Binding of the Selenium Analogues of Ergothioneine and Ovothiol to Cu(I) and Cu(II) and the Effect of Binding on the Redox Potential of the Cu(II)/Cu(I) Redox Couple. J CHEM-NY 2019. [DOI: 10.1155/2019/9593467] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The complexes formed from the binding of ovoselenol (OSeH) and ergoseloneine (ESeH) to Cu(II) and Cu(I) have been investigated with DFT methods. From the calculated thermodynamics, the binding of OSeH and ESeH to Cu(II) and Cu(I) ions increases the reduction potential for the Cu(II)/Cu(I) redox couple. The calculated reduction potentials for the Cu(II)(OSe)2/Cu(I)(OSeH)3+ and Cu(II)(ESe)2/Cu(I)(ESeH)3+ redox couples were found to be 1.15 V and 1.24 V in a dilute aqueous solution. By combining the half reactions for the oxidation of OSeH to the diselenide OSeSeO with the reduction of Cu(II)(OSe)2 to Cu(I)(OSeH)3+, the calculated EMF was 0.90 V. For the oxidation of ESeH to the diselenide ESeSeE with the concomitant reduction of Cu(II)(ESe)2 to Cu(I)(ESeH)3+, the calculated EMF was 0.67 V. Thus, for both systems, the reduction of Cu(II) to Cu(I) with concomitant formation of either diselenide is thermodynamically favourable, and it is expected that both OSeH and ESeH are suitable for the protection against copper induced oxidative damage. As a result, the inhibition of the recycling of Cu(I) to Cu(II) is thermodynamically favourable in the presence of OSeH and ESeH.
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16
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Chalana A, Karri R, Das R, Kumar B, Rai RK, Saxena H, Gupta A, Banerjee M, Jha KK, Roy G. Copper-Driven Deselenization: A Strategy for Selective Conversion of Copper Ion to Nanozyme and Its Implication for Copper-Related Disorders. ACS APPLIED MATERIALS & INTERFACES 2019; 11:4766-4776. [PMID: 30644707 DOI: 10.1021/acsami.8b16786] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Synthetic organic molecules, which can selectively convert excess intracellular copper (Cu) ions to nanozymes with an ability to protect cells from oxidative stress, are highly significant in developing therapeutic agents against Cu-related disorder like Wilson's disease. Here, we report 1,3-bis(2-hydroxyethyl)-1 H-benzoimidazole-2-selenone (1), which shows a remarkable ability to remove Cu ion from glutathione, a major cytosolic Cu-binding ligand, and thereafter converts it into copper selenide (CuSe) nanozyme that exhibits remarkable glutathione peroxidase-like activity, at cellular level of H2O2 concentration, with excellent cytoprotective effect against oxidative stress in hepatocyte. Cu-driven deselenization of 1, under physiologically relevant conditions, occurred in two steps. The activation of C═Se bond by metal ion is the crucial first step, followed by cleavage of the metal-activated C═Se bond, initiated by the OH group of N-(CH2)2OH substituent through neighboring group participation (deselenization step), resulted in the controlled synthesis of various types of Cu2-xSe nanocrystals (NCs) (nanodisks, nanocubes, and nanosheets) and tetragonal Cu3Se2 NCs, depending upon the oxidation state of the Cu ion used to activate the C═Se bond. Deselenization of 1 is highly metal-selective. Except Cu, other essential metal ions, including Mn2+, Fe2+, Co2+, Ni2+, or Zn2+, failed to produce metal selenide under identical reaction conditions. Moreover, no significant change in the expression level of Cu-metabolism-related genes, including metallothioneines MT1A, is observed in liver cells co-treated with Cu and 1, as opposed to the large increase in the concentrations of these genes observed in cells treated with Cu alone, suggesting the participation of 1 in Cu homeostasis in hepatocyte.
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17
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Kashyap C, Mazumder LJ, Rohman SS, Ullah SS, Guha AK. Re-visiting the Antioxidant Activity of Se- and Te- Carbohydrates: A Theoretical Study. ChemistrySelect 2019. [DOI: 10.1002/slct.201803814] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Chayanika Kashyap
- Department of Chemistry; Cotton University, Panbazar, Guwahati, Assam; India-781001
| | | | - Shahnaz S. Rohman
- Department of Chemistry; Cotton University, Panbazar, Guwahati, Assam; India-781001
| | - Sabnam S. Ullah
- Department of Chemistry; Cotton University, Panbazar, Guwahati, Assam; India-781001
| | - Ankur Kanti Guha
- Department of Chemistry; Cotton University, Panbazar, Guwahati, Assam; India-781001
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18
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Karri R, Chalana A, Das R, Rai RK, Roy G. Cytoprotective effects of imidazole-based [S 1] and [S 2]-donor ligands against mercury toxicity: a bioinorganic approach. Metallomics 2019; 11:213-225. [PMID: 30488926 DOI: 10.1039/c8mt00237a] [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
Here we report the coordination behaviour of an imidazole-based [S1]-donor ligand, 1,3-dimethyl-imidazole-2(3H)-thione (L1), and [S2]-donor ligand, 3,3'-methylenebis(1-methyl-imidazole-2(3H)-thione) (L2) or 4,4'-(3,3'-methylenebis-(2-thioxo-2,3-dihydro-imidazole-3,1-diyl))dibutanoic acid (L3), with HgX2 (X = Cl, Br or I) in solution and the solid state. NMR, UV-Vis spectroscopic, and single crystal X-ray studies demonstrated that L1 or L2 coordinated rapidly and reversibly to the mercury center of HgX2 through the thione moiety. Treatment of L2 with HgCl2 or HgBr2 afforded 16-membered metallacycle k1-(L2)2Hg2Cl4 or k1-(L2)2Hg2Br4 where two Cl or Br atoms are located inside the ring. In contrast, treatment of L2 with HgI2 afforded a chain-like structure of k1-[L2Hgl2]n, possibly due to the large size of the iodine atom. Interestingly, [S1] and [S2]-donor ligands (L1, L2, and L3) showed an excellent efficacy to protect liver cells against HgCl2 induced toxicity and the strength of their efficacy is in the order of L3 > L2 > L1. 30% decrease of ROS production was observed when liver cells were co-treated with HgCl2 and L1 in comparison to those cells treated with HgCl2 only. In contrast, 45% and 60% decrease of ROS production was observed in the case of cells co-treated with HgCl2 and thiones L2 and L3, respectively, indicating that [S2]-donor ligands L2 and L3 have better cytoprotective effects against oxidative stress induced by HgCl2 than [S1]-donor ligand L1. Water-soluble ligand L3 with N-(CH2)3CO2H substituents showed a better cytoprotective effect against HgCl2 toxicity than L2 in liver cells.
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Affiliation(s)
- Ramesh Karri
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, NH91, Dadri, Gautam Buddha Nagar, UP 201314, India.
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19
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Donsbach C, Dehnen S. Formation of [(C
n
C
1
imTe)
4
Hg]
2+
(
n
= 6, 8) upon in‐situ Generation of Dialkylimidazole‐2‐Tellurones in Ionic Liquids at Room Temperature. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800771] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Carsten Donsbach
- Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften (WZMW) Philipps‐Universität Marburg Hans‐Meerwein‐Straße 4 35043 Marburg Germany
| | - Stefanie Dehnen
- Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften (WZMW) Philipps‐Universität Marburg Hans‐Meerwein‐Straße 4 35043 Marburg Germany
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20
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Ritch JS. Synthesis and coordination chemistry of cyclic seleno- and telluroureas. PHYSICAL SCIENCES REVIEWS 2018. [DOI: 10.1515/psr-2017-0128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Abstract
Chalcogenated derivatives of N-heterocyclic carbene ligands have received increasing attention due to their diverse chemical reactivity and potential applications in fields such as medicine and materials chemistry. This chapter summarizes the synthetic methods for the preparation of cyclic heavy chalcogenoureas featuring heterocyclic cores and explores their diverse coordination chemistry with p- and d-block metals.
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Affiliation(s)
- Jamie S. Ritch
- Department of Chemistry , The University of Winnipeg , 515 Portage Avenue , Winnipeg , Manitoba R3B 2E9 , Canada
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21
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Nesterov V, Reiter D, Bag P, Frisch P, Holzner R, Porzelt A, Inoue S. NHCs in Main Group Chemistry. Chem Rev 2018; 118:9678-9842. [PMID: 29969239 DOI: 10.1021/acs.chemrev.8b00079] [Citation(s) in RCA: 515] [Impact Index Per Article: 85.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Since the discovery of the first stable N-heterocyclic carbene (NHC) in the beginning of the 1990s, these divalent carbon species have become a common and available class of compounds, which have found numerous applications in academic and industrial research. Their important role as two-electron donor ligands, especially in transition metal chemistry and catalysis, is difficult to overestimate. In the past decade, there has been tremendous research attention given to the chemistry of low-coordinate main group element compounds. Significant progress has been achieved in stabilization and isolation of such species as Lewis acid/base adducts with highly tunable NHC ligands. This has allowed investigation of numerous novel types of compounds with unique electronic structures and opened new opportunities in the rational design of novel organic catalysts and materials. This Review gives a general overview of this research, basic synthetic approaches, key features of NHC-main group element adducts, and might be useful for the broad research community.
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Affiliation(s)
- Vitaly Nesterov
- Department of Chemistry, WACKER-Institute of Silicon Chemistry and Catalysis Research Center , Technische Universität München , Lichtenbergstrasse 4 , Garching bei München 85748 , Germany
| | - Dominik Reiter
- Department of Chemistry, WACKER-Institute of Silicon Chemistry and Catalysis Research Center , Technische Universität München , Lichtenbergstrasse 4 , Garching bei München 85748 , Germany
| | - Prasenjit Bag
- Department of Chemistry, WACKER-Institute of Silicon Chemistry and Catalysis Research Center , Technische Universität München , Lichtenbergstrasse 4 , Garching bei München 85748 , Germany
| | - Philipp Frisch
- Department of Chemistry, WACKER-Institute of Silicon Chemistry and Catalysis Research Center , Technische Universität München , Lichtenbergstrasse 4 , Garching bei München 85748 , Germany
| | - Richard Holzner
- Department of Chemistry, WACKER-Institute of Silicon Chemistry and Catalysis Research Center , Technische Universität München , Lichtenbergstrasse 4 , Garching bei München 85748 , Germany
| | - Amelie Porzelt
- Department of Chemistry, WACKER-Institute of Silicon Chemistry and Catalysis Research Center , Technische Universität München , Lichtenbergstrasse 4 , Garching bei München 85748 , Germany
| | - Shigeyoshi Inoue
- Department of Chemistry, WACKER-Institute of Silicon Chemistry and Catalysis Research Center , Technische Universität München , Lichtenbergstrasse 4 , Garching bei München 85748 , Germany
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22
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Accurate Ionization Energies for Mononuclear Copper Complexes Remain a Challenge for Density Functional Theory. Chemphyschem 2018; 19:959-966. [DOI: 10.1002/cphc.201701334] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Indexed: 12/21/2022]
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23
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Srinivas K, Prabusankar G. Role of C, S, Se and P donor ligands in copper(i) mediated C–N and C–Si bond formation reactions. RSC Adv 2018; 8:32269-32282. [PMID: 35547503 PMCID: PMC9086264 DOI: 10.1039/c8ra06057f] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 08/31/2018] [Indexed: 11/23/2022] Open
Abstract
The first comparative study of C, S, Se and P donor ligands-supported copper(i) complexes for C–N and C–Si bond formation reactions are described. The syntheses and characterization of eight mononuclear copper(i) chalcogenone complexes, two polynuclear copper(i) chalcogenone complexes and one tetranuclear copper(i) phosphine complex are reported. All these new complexes were characterized by CHN analysis, FT-IR, UV-vis, multinuclear NMR and single crystal X-ray diffraction techniques. The single crystal X-ray structures of these complexes depict the existence of a wide range of coordination environments for the copper(i) center. This is the first comparative study of metal–phosphine, metal–NHC and metal–imidazolin-2-chalcogenones in C–N and C–Si bond formation reactions. Among all the catalysts, mononuclear copper(i) thione, mononuclear copper(i) N-heterocyclic carbene and tetranuclear copper(i) phosphine are exceedingly active towards the synthesis of 1,2,3-triazoles as well as for the cross-dehydrogenative coupling of alkynes with silanes. The cross-dehydrogenative coupling of terminal alkynes with silanes represents the first report of a catalytic process mediated by metal–imidazolin-2-chalcogenones. The first comparative study of C, S, Se and P donor ligands-supported copper(i) complexes for C–N and C–Si bond formation reactions.![]()
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Affiliation(s)
- Katam Srinivas
- Department of Chemistry
- Indian Institute of Technology Hyderabad
- India-502 285
| | - Ganesan Prabusankar
- Department of Chemistry
- Indian Institute of Technology Hyderabad
- India-502 285
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24
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Perras JH, Mezibroski SMJ, Wiebe MA, Ritch JS. Diverse silver(i) coordination chemistry with cyclic selenourea ligands. Dalton Trans 2018; 47:1471-1478. [DOI: 10.1039/c7dt04243d] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The reactions of cyclic selenoureas with silver(i) salts yield new coordination complexes with sterically-controlled solid state aggregation.
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Affiliation(s)
| | | | | | - Jamie S. Ritch
- Department of Chemistry
- The University of Winnipeg
- Winnipeg
- Canada
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25
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Nahra F, Van Hecke K, Kennedy AR, Nelson DJ. Coinage metal complexes of selenoureas derived from N-heterocyclic carbenes. Dalton Trans 2018; 47:10671-10684. [DOI: 10.1039/c8dt01506f] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The coordination chemistry of selenoureas derived from N-heterocyclic carbenes with copper and silver is explored, and compared to previous work with gold.
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Affiliation(s)
- Fady Nahra
- Department of Chemistry and Centre for Sustainable Chemistry
- Ghent University
- 9000 Ghent
- Belgium
| | - Kristof Van Hecke
- Department of Chemistry and Centre for Sustainable Chemistry
- Ghent University
- 9000 Ghent
- Belgium
| | - Alan R. Kennedy
- WestCHEM Department of Pure & Applied Chemistry
- University of Strathclyde
- Glasgow
- UK
| | - David J. Nelson
- WestCHEM Department of Pure & Applied Chemistry
- University of Strathclyde
- Glasgow
- UK
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26
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Rani V, Singh HB, Butcher RJ. Bis(selone) Complexes of Palladium(II), Platinum(II), and Gold(III): Synthesis and Structural Studies. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700377] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Varsha Rani
- Department of Chemistry; Indian Institute of Technology Bombay; 400076 Mumbai India
| | - Harkesh B. Singh
- Department of Chemistry; Indian Institute of Technology Bombay; 400076 Mumbai India
| | - Ray J. Butcher
- Department of Chemistry; Howard University; 525 College Street NW 20059 Washington DC USA
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27
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Yadav S, Singh HB, Butcher RJ. Synthesis and Reactivity of Selones and Dihaloselones: Complexation of Selones with d8
- and d10
-Metal Ions. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700218] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Sangeeta Yadav
- Department of Chemistry; Indian Institute of Technology Bombay; 400076 Mumbai India
| | - Harkesh B. Singh
- Department of Chemistry; Indian Institute of Technology Bombay; 400076 Mumbai India
| | - Ray J. Butcher
- Department of Chemistry; Howard University; 20059 Washington DC USA
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28
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Viana RB. On the structure of the simplest triselenide compound model and the stabilizing effect of water molecules. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.03.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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29
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Lim JYC, Marques I, Thompson AL, Christensen KE, Félix V, Beer PD. Chalcogen Bonding Macrocycles and [2]Rotaxanes for Anion Recognition. J Am Chem Soc 2017; 139:3122-3133. [PMID: 28140582 DOI: 10.1021/jacs.6b12745] [Citation(s) in RCA: 154] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Electron-deficient heavy chalcogen atoms contain Lewis acidic σ-holes which are able to form attractive supramolecular interactions, known as chalcogen bonding (ChB), with Lewis bases. However, their potential in solution-phase anion binding applications is only just beginning to be realized in simple acyclic systems. Herein, we explore the 5-(methylchalcogeno)-1,2,3-triazole (chalcogen = Se, Te) motif as a novel ChB donor for anion binding. Other than being chemically robust enough to be incorporated into macrocyclic structures, thereby significantly expanding the scope and complexity of ChB host systems, we also demonstrate, by 1H NMR and DFT calculations, that the chalcogen atoms oriented within the macrocycle cavity are able to chelate copper(I) endotopically. Exploiting this property, the first examples of mechanically interlocked [2]rotaxanes containing ChB-donor groups are prepared via an active metal template strategy. Solution-phase 1H NMR and molecular modeling studies provide compelling evidence for the dominant influence of ChB in anion binding by these interlocked host systems. In addition, unprecedented charge-assisted ChB-mediated anion binding was also studied in aqueous solvent mixtures, which revealed considerable differences in anion recognition behavior in comparison with chalcogen-free host analogues. Moreover, DFT calculations and molecular dynamics simulations in aqueous solvent mixtures indicate that the selectivity is determined by the different hydrophilic characters of the anions allied to the hydration of the binding units in the presence of the anions. Exploiting the NMR-active nuclei of the ChB-donor chalcogen atoms, heteronuclear 77Se and 125Te NMR were used to directly study how anion recognition influences the local electronic environment of the chalcogen atoms in the mechanically bonded rotaxane binding sites in organic and aqueous solvent mixtures.
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Affiliation(s)
- Jason Y C Lim
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford , Mansfield Road, Oxford OX1 3TA, U.K
| | | | - Amber L Thompson
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford , Mansfield Road, Oxford OX1 3TA, U.K
| | - Kirsten E Christensen
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford , Mansfield Road, Oxford OX1 3TA, U.K
| | | | - Paul D Beer
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford , Mansfield Road, Oxford OX1 3TA, U.K
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30
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Rishu R, Prashanth B, Bawari D, Mandal U, Verma A, Choudhury AR, Singh S. Hg(ii) and Pd(ii) complexes with a new selenoether bridged biscarbene ligand: efficient mono- and bis-arylation of methyl acrylate with a pincer biscarbene Pd(ii) precatalyst. Dalton Trans 2017; 46:6291-6302. [DOI: 10.1039/c6dt04505g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New selenoether (CSeC) bridged carbene complexes of Hg(ii) and Pd(ii) have been prepared; a pincer Pd(ii) complex showed catalytic activity in mono- and double-Heck reactions.
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Affiliation(s)
- Rishu Rishu
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Mohali
- Mohali 140306
- India
| | - Billa Prashanth
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Mohali
- Mohali 140306
- India
| | - Deependra Bawari
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Mohali
- Mohali 140306
- India
| | - Ushnish Mandal
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur – 741246
- India
| | - Aditya Verma
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Mohali
- Mohali 140306
- India
| | - Angshuman Roy Choudhury
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Mohali
- Mohali 140306
- India
| | - Sanjay Singh
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Mohali
- Mohali 140306
- India
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31
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Stadelman BS, Kimani MM, Bayse CA, McMillen CD, Brumaghim JL. Synthesis, characterization, DFT calculations, and electrochemical comparison of novel iron(ii) complexes with thione and selone ligands. Dalton Trans 2016; 45:4697-711. [DOI: 10.1039/c5dt03384e] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Characterization of Fe(ii)–thone and –selone complexes revealed that these ligands oxidize before Fe(ii), suggesting an iron-binding mechanism for similar antioxidants.
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Affiliation(s)
| | | | - Craig A. Bayse
- Department of Chemistry and Biochemistry
- Old Dominion University
- Norfolk
- USA
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32
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Palmer J, Parkin G. Protolytic cleavage of Hg-C bonds induced by 1-methyl-1,3-dihydro-2H-benzimidazole-2-selone: synthesis and structural characterization of mercury complexes. J Am Chem Soc 2015; 137:4503-16. [PMID: 25822075 PMCID: PMC4415037 DOI: 10.1021/jacs.5b00840] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2015] [Indexed: 12/22/2022]
Abstract
Multinuclear ((1)H, (77)Se, and (199)Hg) NMR spectroscopy demonstrates that 1-methyl-1,3-dihydro-2H-benzimidazole-2-selone, H(sebenzim(Me)), a structural analogue of the selenoamino acid, selenoneine, binds rapidly and reversibly to the mercury centers of HgX2 (X = Cl, Br, I), while X-ray diffraction studies provide evidence for the existence of adducts of composition [H(sebenzim(Me))]xHgX2 (X = Cl, x = 2, 3, 4; X = I, x = 2) in the solid state. H(sebenzim(Me)) also reacts with methylmercury halides, but the reaction is accompanied by elimination of methane resulting from protolytic cleavage of the Hg-C bond, an observation that is of relevance to the report that selenoneine demethylates CysHgMe, thereby providing a mechanism for mercury detoxification. Interestingly, the structures of [H(sebenzim(Me))]xHgX2 exhibit a variety of different hydrogen bonding patterns resulting from the ability of the N-H groups to form hydrogen bonds with chlorine, iodine, and selenium.
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Affiliation(s)
- Joshua
H. Palmer
- Department
of Chemistry, Columbia University, New York, New York 10027, United States
| | - Gerard Parkin
- Department
of Chemistry, Columbia University, New York, New York 10027, United States
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33
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Gupta V, Karthik V, Anantharaman G. Labile dioxy-functionalised zwitterionic imidazolinium salt: access to zwitterionic and neutral imidazolidin-2-ylidene derivatives and π-acceptor properties of imidazolidine-2-selones. RSC Adv 2015. [DOI: 10.1039/c5ra15333f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
The synthesis of the title compound and effect of backbone oxy-derivatisation in imidazolidine derivatives on the π-acceptor property are reported.
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Affiliation(s)
- Vivek Gupta
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur–208016
- India
| | - Vedhagiri Karthik
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur–208016
- India
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34
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Srinivas K, Naga Babu C, Prabusankar G. Linear Cu(i) chalcogenones: synthesis and application in borylation of unsymmetrical alkynes. Dalton Trans 2015; 44:15636-44. [DOI: 10.1039/c5dt02320c] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The synthesis, properties and catalytic application of homoleptic copper(i) imidazoline-2-chalcogenone complexes are described.
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Affiliation(s)
- Katam Srinivas
- Department of Chemistry
- Indian Institute of Technology Hyderabad
- Yeddumailaram
- India
| | - Chatla Naga Babu
- Department of Chemistry
- Indian Institute of Technology Hyderabad
- Yeddumailaram
- India
| | - Ganesan Prabusankar
- Department of Chemistry
- Indian Institute of Technology Hyderabad
- Yeddumailaram
- India
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35
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Ghavale N, Manjare ST, Singh HB, Butcher RJ. Bis(chalcogenones) as pincer ligands: isolation and Heck activity of the selone-ligated unsymmetrical C,C,Se–Pd pincer complex. Dalton Trans 2015; 44:11893-900. [DOI: 10.1039/c5dt01565k] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of meta-phenylene-bis(1-methyl-1H-imidazole-2(3H)-selone) with [Pd2(μ-Cl)2(2-C6H4CH2NMe2)2] in dry benzene and glacial acetic acid resulted in the formation of an unsymmetrical 5,6-membered C,C,Se–Pd(ii) pincer complex.
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Affiliation(s)
- Ninad Ghavale
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - Sudesh T. Manjare
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
- Department of Chemistry
| | - Harkesh B. Singh
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - Ray J. Butcher
- Department of Chemistry
- Howard University
- Washington, D. C. 20059
- USA
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36
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Zhang L, Yan T, Han YF, Hahn FE, Jin GX. Synthesis of a new type of alkene metal complex using face-capping thione-alkene ligands. Dalton Trans 2015; 44:8797-800. [DOI: 10.1039/c5dt01311a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of complexes of novel chelating thione-alkene S(η2-CC)S tridentate ligands bound to late transition metals (Ir, Rh, Pd) were isolated and characterised.
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Affiliation(s)
- Long Zhang
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Department of Chemistry
- Fudan University
- 200433 Shanghai
- People's Republic of China
| | - Tao Yan
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Department of Chemistry
- Fudan University
- 200433 Shanghai
- People's Republic of China
| | - Ying-Feng Han
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Department of Chemistry
- Fudan University
- 200433 Shanghai
- People's Republic of China
| | - F. Ekkehardt Hahn
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Department of Chemistry
- Fudan University
- 200433 Shanghai
- People's Republic of China
| | - Guo-Xin Jin
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Department of Chemistry
- Fudan University
- 200433 Shanghai
- People's Republic of China
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37
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Zimmerman MT, Bayse CA, Ramoutar RR, Brumaghim JL. Sulfur and selenium antioxidants: challenging radical scavenging mechanisms and developing structure-activity relationships based on metal binding. J Inorg Biochem 2014; 145:30-40. [PMID: 25600984 DOI: 10.1016/j.jinorgbio.2014.12.020] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Revised: 12/17/2014] [Accepted: 12/19/2014] [Indexed: 11/30/2022]
Abstract
Because sulfur and selenium antioxidants can prevent oxidative damage, numerous animal and clinical trials have investigated the ability of these compounds to prevent the oxidative stress that is an underlying cause of cardiovascular disease, Alzheimer's disease, and cancer, among others. One of the most common sources of oxidative damage is metal-generated hydroxyl radical; however, very little research has focused on determining the metal-binding abilities and structural attributes that affect oxidative damage prevention by sulfur and selenium compounds. In this review, we describe our ongoing investigations into sulfur and selenium antioxidant prevention of iron- and copper-mediated oxidative DNA damage. We determined that many sulfur and selenium compounds inhibit Cu(I)-mediated DNA damage and that DNA damage prevention varies dramatically when Fe(II) is used in place of Cu(I) to generate hydroxyl radical. Oxidation potentials of the sulfur or selenium compounds do not correlate with their ability to prevent DNA damage, highlighting the importance of metal coordination rather than reactive oxygen species scavenging as an antioxidant mechanism. Additional gel electrophoresis, mass spectrometry, and UV-visible studies confirmed sulfur and selenium antioxidant binding to Cu(I) and Fe(II). Ultimately, our studies established that both the hydroxyl-radical-generating metal ion and the chemical environment of the sulfur or selenium significantly affect DNA damage prevention and that metal coordination is an essential mechanism for these antioxidants.
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Affiliation(s)
| | - Craig A Bayse
- Department of Chemistry and Biochemistry, Old Dominion University, Hampton Boulevard, Norfolk, VA 23529, USA
| | - Ria R Ramoutar
- Department of Chemistry, Clemson University, Clemson, SC 29634-0973, USA
| | - Julia L Brumaghim
- Department of Chemistry, Clemson University, Clemson, SC 29634-0973, USA.
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38
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Nelson DJ, Nahra F, Patrick SR, Cordes DB, Slawin AMZ, Nolan SP. Exploring the Coordination of Cyclic Selenoureas to Gold(I). Organometallics 2014. [DOI: 10.1021/om500610w] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- David J. Nelson
- EaStCHEM
School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife KY16 9ST, U.K
| | - Fady Nahra
- EaStCHEM
School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife KY16 9ST, U.K
| | - Scott R. Patrick
- EaStCHEM
School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife KY16 9ST, U.K
| | - David B. Cordes
- EaStCHEM
School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife KY16 9ST, U.K
| | - Alexandra M. Z. Slawin
- EaStCHEM
School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife KY16 9ST, U.K
| | - Steven P. Nolan
- EaStCHEM
School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife KY16 9ST, U.K
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39
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Thione- and Selone-Containing Compounds, Their Late First Row Transition Metal Coordination Chemistry, and Their Biological Potential. ACTA ACUST UNITED AC 2013. [DOI: 10.1021/bk-2013-1152.ch003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
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40
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Rong Y, Al-Harbi A, Kriegel B, Parkin G. Structural Characterization of 2-Imidazolones: Comparison with their Heavier Chalcogen Counterparts. Inorg Chem 2013; 52:7172-82. [DOI: 10.1021/ic400788g] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yi Rong
- Department of Chemistry, Columbia University, New York, New York 10027, United
States
| | - Ahmed Al-Harbi
- Department of Chemistry, Columbia University, New York, New York 10027, United
States
| | - Benjamin Kriegel
- Department of Chemistry, Columbia University, New York, New York 10027, United
States
| | - Gerard Parkin
- Department of Chemistry, Columbia University, New York, New York 10027, United
States
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41
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De Luna P, Bushnell EAC, Gauld JW. A Density Functional Theory Investigation into the Binding of the Antioxidants Ergothioneine and Ovothiol to Copper. J Phys Chem A 2013; 117:4057-65. [DOI: 10.1021/jp402514w] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Phil De Luna
- Department
of Chemistry and Biochemistry, University of Windsor, Windsor, Ontario N9B 3P4, Canada
| | - Eric A. C. Bushnell
- Department
of Chemistry and Biochemistry, University of Windsor, Windsor, Ontario N9B 3P4, Canada
| | - James W. Gauld
- Department
of Chemistry and Biochemistry, University of Windsor, Windsor, Ontario N9B 3P4, Canada
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