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Chiaverini L, Notarstefano V, Tolbatov I, Umari P, Giorgini E, Ciccone L, Di Leo R, Trincavelli L, Giacomelli C, Marchetti L, Marzo T, La Mendola D, Marrone A. Dimolybdenum (II,II) paddlewheel complexes bearing non-steroidal anti-inflammatory drug ligands: Insights into the chemico-physical profile and first biological assessment. J Inorg Biochem 2024; 260:112697. [PMID: 39146672 DOI: 10.1016/j.jinorgbio.2024.112697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Revised: 07/25/2024] [Accepted: 08/11/2024] [Indexed: 08/17/2024]
Abstract
Multinuclear complexes are metal compounds featured by adjacent bound metal centers that can lead to unconventional reactivity. Some M2L4-type paddlewheel dinuclear complexes with monoanionic bridging ligands feature promising properties, including therapeutic ones. Molybdenum has been studied for the formation of multiple-bonded M2+ compounds due to their unique scaffold, redox, and spectroscopic properties as well as for applications in several fields including catalysis and biology. These latter are much less explored and only sporadic studies have been carried out. Here, a series of four dimolybdenum (II,II) carboxylate paddlewheel complexes were synthesized using different Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) as ligands. The reaction of (NH4)5[Mo2Cl9]·H2O with the selected NSAIDs in methanol produced the complexes Mo2(μ-O2CR)4 where RCO2 is ibuprofen (1), naproxen (2), aspirin (3) and indomethacin (4). The products were obtained in good yields and extensively characterized with integrated techniques. Stability and solution behaviour were studied using a mixed experimental and computational approach. Finally, the biological activity of 1 and 3 (i.e. the most reactive and the most stable compounds of the series, respectively) was preliminarily assessed confirming the disassembling of the molecules in the biological milieu. Overall, some very interesting results emerged for these unconventional compounds from a mechanistic point of view.
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Affiliation(s)
- Lorenzo Chiaverini
- Department of Pharmacy, University of Pisa, Via Bonanno Pisano 6, 56126 Pisa, Italy
| | - Valentina Notarstefano
- Department of Life and Environmental Sciences, DiSVA, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | - Iogann Tolbatov
- Department of Physics and Astronomy, University of Padova, via F. Marzolo 8, 35131 Padova, Italy; Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, av. Paisos Catalans 16, 43007 Tarragona, Spain.
| | - Paolo Umari
- Department of Physics and Astronomy, University of Padova, via F. Marzolo 8, 35131 Padova, Italy
| | - Elisabetta Giorgini
- Department of Life and Environmental Sciences, DiSVA, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Lidia Ciccone
- Department of Pharmacy, University of Pisa, Via Bonanno Pisano 6, 56126 Pisa, Italy
| | - Riccardo Di Leo
- Department of Pharmacy, University of Pisa, Via Bonanno Pisano 6, 56126 Pisa, Italy
| | - Letizia Trincavelli
- Department of Pharmacy, University of Pisa, Via Bonanno Pisano 6, 56126 Pisa, Italy
| | - Chiara Giacomelli
- Department of Pharmacy, University of Pisa, Via Bonanno Pisano 6, 56126 Pisa, Italy
| | - Laura Marchetti
- Department of Pharmacy, University of Pisa, Via Bonanno Pisano 6, 56126 Pisa, Italy
| | - Tiziano Marzo
- Department of Pharmacy, University of Pisa, Via Bonanno Pisano 6, 56126 Pisa, Italy.
| | - Diego La Mendola
- Department of Pharmacy, University of Pisa, Via Bonanno Pisano 6, 56126 Pisa, Italy
| | - Alessandro Marrone
- Dipartimento di Farmacia, Università degli Studi "G. D'Annunzio" Chieti-Pescara, Via dei Vestini, 66100 Chieti, Italy
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Ojo OS, Sale H, Symes MD, Wilson C. Synthesis of a chiral dinuclear Cu(II)-benzothiazolamine complex: evidence of cuprophilic interaction in its structure and exploration of its electrochemical properties and catalytic performance. Dalton Trans 2023. [PMID: 37902024 DOI: 10.1039/d3dt02994h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
The synthesis of a chiral dinuclear [Cu(OAc)2(L1)]2 complex (A) and its analogues Cu(OAc)2(L1)2 (B), Cu(OAc)2(L1)PPh3 (C), CuBr(L1)PPh3 (D), and Cu(OAc)2(L2) (E) is described. The X-ray structure of A reveals a cuprophilic interaction (2.65 Å) and shows that L1 behaves as a monodentate ligand. The stereogenic centre in L1 aligns the NH group to form non-covalent interactions with the paddle-wheel acetate groups at variable distances (2.4-2.5 Å and 2.2-2.7 Å). Thermogravimetric analysis confirmed our hypothesis that two equivalents of L1 (B) or a combination of L1 and PPh3 (C) would disrupt the cuprophilic interaction. All complexes, except D, showed irreversible redox waves by cyclic voltammetry. Complexes C and E have lower oxidative peaks (at 10 V s-1) than complex A between +0.40 and +0.60 V. This highlights the influence of ligand(s) on the redox behaviour of Cu(II) complexes. The significance of this electrochemical behaviour was evident in the Chan-Lam (CL) coupling reaction, where 2.5 mol% of A successfully facilitated the formation of a C-N bond. This study showcased the structure, thermal stability, electrochemical properties and catalytic performance of a chiral dinuclear copper(II)-benzothiazolamine complex.
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Affiliation(s)
- O Stephen Ojo
- WestCHEM, School of Chemistry, The Joseph Black Building, University of Glasgow, Glasgow, G12 8QQ, UK.
| | - Halilu Sale
- WestCHEM, School of Chemistry, The Joseph Black Building, University of Glasgow, Glasgow, G12 8QQ, UK.
| | - Mark D Symes
- WestCHEM, School of Chemistry, The Joseph Black Building, University of Glasgow, Glasgow, G12 8QQ, UK.
| | - Claire Wilson
- WestCHEM, School of Chemistry, The Joseph Black Building, University of Glasgow, Glasgow, G12 8QQ, UK.
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Bivián-Castro EY, Flores-Alamo M, Escudero R, Gómez-Vidal V, Segoviano-Garfias JJN, Castañeda-Contreras J, Saavedra-Arroyo QE. Synthesis and Characterization of a New Cu(II) Paddle-Wheel-like Complex with 4-Vinylbenzoate as an Inorganic Node for Metal-Organic Framework Material Design. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4866. [PMID: 37445180 DOI: 10.3390/ma16134866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/25/2023] [Accepted: 06/29/2023] [Indexed: 07/15/2023]
Abstract
A new Cu(II) paddle-wheel-like complex with 4-vinylbenzoate was synthesized using acetonitrile as the solvent. The complex was characterized by X-ray crystal diffraction, FT-IR, diffuse reflectance spectroscopy, thermogravimetric, differential scanning calorimetric, magnetic susceptibility, and electronic paramagnetic resonance analyses. The X-ray crystal diffraction analysis indicated that each copper ion was bound at an equatorial position to four oxygen atoms from the carboxylate groups of the 4-vinylbenzoate ligand in a square-based pyramidal geometry. The distance between the copper ions was 2.640(9) Å. The acetonitrile molecules were coordinated at the axial position to the copper ions. Exposure of the Cu(II) complex to humid air promoted the gradual replacement of the coordinated acetonitrile by water molecules, but the complex structure integrity remained. The EPR spectra exhibited signals attributed to the presence of a mixture of the monomeric (S = ½) and dimeric (S = 1) copper species in a possible 3:1 ratio. The magnetic studies revealed a peak at 50-100 K, which could be associated with the oxygen absorption capacity of the Cu(II)-vba complex.
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Affiliation(s)
- Egla Yareth Bivián-Castro
- Centro Universitario de los Lagos, Universidad de Guadalajara, Av. Enrique Díaz de León 1144, Col. Paseos de la Montaña, Lagos de Moreno 47460, Jalisco, Mexico
| | - Marcos Flores-Alamo
- Facultad de Química, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Exterior S/N, Coyoacán, Mexico City 04510, Mexico
| | - Roberto Escudero
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Exterior S/N, Coyoacán, Mexico City 04510, Mexico
| | - Virginia Gómez-Vidal
- Instituto de Química, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Exterior S/N, Coyoacán, Mexico City 04510, Mexico
| | - José J N Segoviano-Garfias
- División de Ciencias de la Vida, Carr. Irapuato-Silao Km. 12.5, Ex-Hacienda El Copal, Irapuato 36821, Guanajuato, Mexico
| | - Jesus Castañeda-Contreras
- Centro Universitario de los Lagos, Universidad de Guadalajara, Av. Enrique Díaz de León 1144, Col. Paseos de la Montaña, Lagos de Moreno 47460, Jalisco, Mexico
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Feng T, Guo SZ, Li M, Zhao L. A insight into structural characterization, Hirshfeld surface analysis and DFT theoretical calculation of new hexanuclear Ni(II) complex containing two different coordination modes of N 3− anions. INORG NANO-MET CHEM 2022. [DOI: 10.1080/24701556.2022.2034007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Tao Feng
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, China
| | - Shuang-Zhu Guo
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, China
| | - Mei Li
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, China
| | - Li Zhao
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, China
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