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Synthesis of ruthenium–dithiocarbamate chelates bearing diphosphine ligands and their use as latent initiators for atom transfer radical additions. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121993] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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2
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Imran M, Rehman ZU, Hogarth G, Tocher DA, Chaudhry GES, Butler IS, Bélanger-Gariepy F, Kondratyuk T. Two new monofunctional platinum(II) dithiocarbamate complexes: phenanthriplatin-type axial protection, equatorial-axial conformational isomerism, and anticancer and DNA binding studies. Dalton Trans 2021; 49:15385-15396. [PMID: 33140800 DOI: 10.1039/d0dt03018j] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The syntheses of two platinum(ii) dithiocarbamate complexes (1 and 2) that show quinoplatin- and phenanthriplatin-type axial protection of the Pt-plane are described. The Pt-plane of complex 2 is axially more protected than that of complex 1. Furthermore, both complexes adopt two different stereochemical conformations in the solid state (based on single-crystal X-ray structures) owing to the structurally flexible piperazine backbone; i.e., C-e,e-Anti (1) and C-e,a-Syn (2), where "C" stands for the chair configuration, "e" and "a" stand for the equatorial and axial positions and "Anti" (opposite side) and "Syn" (same side) represent the relative orientations in space of the terminal substituents on the piperazine ring. In complex 2, the C-e,a-Syn conformation may provide additional steric hindrance to the Pt-plane. Despite the lower lipophilicity of 2 as compared to that of 1, the in vitro anticancer action against selected cancer cell lines is better for the former revealing the superior role of the axial protection over lipophilicity in modulating anticancer activity. The activity against the cancer promoting protein NF-κB signifies that the mode of cancer cell death may be the result of hindering the activity of NF-κB in the initiation of apoptosis. The apoptotic mode of cell death has been established earlier in a study using Annexin V-FITC. Finally, DNA binding studies revealed that the complex-DNA adduct formation is spontaneous and the mode of interaction is non-intercalative (electrostatic/covalent).
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Affiliation(s)
- Muhammad Imran
- Department of Chemistry, Quaid-i-Azam University, 45320, Islamabad, Pakistan.
| | - Zia Ur Rehman
- Department of Chemistry, Quaid-i-Azam University, 45320, Islamabad, Pakistan.
| | - Graeme Hogarth
- Department of Chemistry, King's College London, Britannia House, 7 Trinity Street, London, SE1 1DB, UK
| | - Derek A Tocher
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1 0AJ, UK
| | - Gul-E-Saba Chaudhry
- Institute of Marine Biotechnology, University Malaysia Terengganu, Kuala Terengganu, 21030, Malaysia
| | - Ian S Butler
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, Quebec, H3A 0B8, Canada
| | | | - Tamara Kondratyuk
- University of Hawaii at Hilo, The Daniel K. Inouye College of Pharmacy, USA
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Abstract
The incorporation of dithiocarbamate ligands in the preparation of metal complexes is largely prompted by the versatility of this molecule. Fascinating coordination chemistry can be obtained from the study of such metal complexes ranging from their preparation, the solid-state properties, solution behavior as well as their applications as bioactive materials and luminescent compounds, to name a few. In this overview, the dithiocarbamate complexes of platinum-group elements form the focus of the discussion. The structural aspects of these complexes will be discussed based upon the intriguing findings obtained from their solid- (crystallographic) and solution-state (NMR) studies. At the end of this review, the applications of platinum-group metal complexes will be discussed.
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5
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Hydrogenation Reactions Catalyzed by PNP-Type Complexes Featuring a HN(CH2CH2PR2)2 Ligand. TOP ORGANOMETAL CHEM 2020. [DOI: 10.1007/3418_2020_63] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Singh RP, Maurya VK, Maiti B, Siddiqui KA, Prasad LB. Synthesis, structure and thermogravimetric analysis of novel dithiocarbamate based Zn(II),Cd(II) and Hg(II) complexes. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.126912] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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García‐Calvo J, Robson JA, Torroba T, Wilton‐Ely JDET. Synthesis and Application of Ruthenium(II) Alkenyl Complexes with Perylene Fluorophores for the Detection of Toxic Vapours and Gases. Chemistry 2019; 25:14214-14222. [DOI: 10.1002/chem.201903303] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Indexed: 12/18/2022]
Affiliation(s)
- José García‐Calvo
- Department of ChemistryFaculty of ScienceUniversity of Burgos 09001 Burgos Spain
| | - Jonathan A. Robson
- Department of ChemistryImperial College London, Molecular Sciences Research Hub, White City Campus London W12 0BZ UK
| | - Tomás Torroba
- Department of ChemistryFaculty of ScienceUniversity of Burgos 09001 Burgos Spain
| | - James D. E. T. Wilton‐Ely
- Department of ChemistryImperial College London, Molecular Sciences Research Hub, White City Campus London W12 0BZ UK
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New ternary platinum(II) dithiocarbamates: Synthesis, characterization, anticancer, DNA binding and DNA denaturing studies. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2019.02.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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9
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Mognon L, Richardson S, Agonigi G, Bond T, Marchetti F, Wilton-Ely JD. Heterotrimetallic complexes of iron and ruthenium based on vinyliminium dithiocarboxylate ligands. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.02.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Jantan KA, McArdle JM, Mognon L, Fiorini V, Wilkinson LA, White AJP, Stagni S, Long NJ, Wilton-Ely JDET. Heteromultimetallic compounds based on polyfunctional carboxylate linkers. NEW J CHEM 2019. [DOI: 10.1039/c8nj06455e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Polyfunctional linkers bearing carboxylate, bipyridine and alkyne functionalities allow the stepwise construction of multimetallic assemblies incorporating redox and photophysical properties.
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Affiliation(s)
- Khairil A. Jantan
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus
- London W12 0BZ
- UK
- Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM)
- 40450 Shah Alam
| | - James M. McArdle
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus
- London W12 0BZ
- UK
| | - Lorenzo Mognon
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus
- London W12 0BZ
- UK
| | - Valentina Fiorini
- Department of Industrial Chemistry “Toso Montanari” – University of Bologna, Viale del Risorgimento 4
- Bologna 40126
- Italy
| | - Luke A. Wilkinson
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus
- London W12 0BZ
- UK
| | - Andrew J. P. White
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus
- London W12 0BZ
- UK
| | - Stefano Stagni
- Department of Industrial Chemistry “Toso Montanari” – University of Bologna, Viale del Risorgimento 4
- Bologna 40126
- Italy
| | - Nicholas J. Long
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus
- London W12 0BZ
- UK
| | - James D. E. T. Wilton-Ely
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus
- London W12 0BZ
- UK
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Ziyaei Halimehjani A, Klepetářová B, Beier P. Synthesis of novel dithiocarbamates and xanthates using dialkyl azodicarboxylates: S N bond formation. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.02.049] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Goren Keskin S, Stanley JM, Cowley AH. Synthesis, characterization and theoretical investigations of molybdenum carbonyl complexes with phosphorus/nitrogen/phosphorus ligand as bidentate and tridentate modes. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.09.037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Toscani A, Jantan KA, Hena JB, Robson JA, Parmenter EJ, Fiorini V, White AJP, Stagni S, Wilton-Ely JDET. The stepwise generation of multimetallic complexes based on a vinylbipyridine linkage and their photophysical properties. Dalton Trans 2017; 46:5558-5570. [PMID: 27872923 DOI: 10.1039/c6dt03810g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The versatile rhenium complex [ReCl(CO)3(bpyC[triple bond, length as m-dash]CH)] (HC[triple bond, length as m-dash]Cbpy = 5-ethynyl-2,2'-bipyridine) is used to generate a series of bimetallic complexes through the hydrometallation of [MHCl(CO)(BTD)(PPh3)2] (M = Ru, Os; BTD = 2,1,3-benzothiadiazole). The ruthenium complex [Ru{CH[double bond, length as m-dash]CH-bpyReCl(CO)3}Cl(BTD)(CO)(PPh3)2] was characterised structurally. Ligand exchange reactions with bifunctional linkers bearing oxygen and sulfur donors provide access to tetra- and pentametallic complexes such as [{M{CH[double bond, length as m-dash]CH-bpyReCl(CO)3}(CO)(PPh3)2}2(S2CNC4H8NCS2)] and Fe[C5H4CO2M{CH[double bond, length as m-dash]CH-bpyReCl(CO)3}(CO)(PPh3)2]2. The effect of the group 8 metal on the photophysical properties of the rhenium centre was investigated using the complexes [Ru{CH[double bond, length as m-dash]CH-bpyReCl(CO)3}Cl(BTD)(CO)(PPh3)2] and [M{CH[double bond, length as m-dash]CH-bpyReCl(CO)3}{S2P(OEt)2}(CO)(PPh3)2] (M = Ru, Os). This revealed the quenching of the rhenium-based emission in favour of weak radiative processes based on the Ru and Os centres. The potential for exploiting this effect is illustrated by the reaction of [Ru{CH[double bond, length as m-dash]CH-bpyReCl(CO)3}Cl(CO)(BTD)(PPh3)2] with carbon monoxide, which results in a 5-fold fluorescence enhancement in the dicarbonyl product, [Ru{CH[double bond, length as m-dash]CH-bpyReCl(CO)3}Cl(CO)2(PPh3)2], as the quenching effect is disrupted.
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Affiliation(s)
- Anita Toscani
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, UK.
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Huang TH, Yang H, Zhu SL, Zhao B, Yang Y. Synthesis, structures and fluorescent properties of metal complexes based on polyphosphine ligands. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.07.076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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15
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Robson JA, Gonzàlez de Rivera F, Jantan KA, Wenzel MN, White AJP, Rossell O, Wilton-Ely JDET. Bifunctional Chalcogen Linkers for the Stepwise Generation of Multimetallic Assemblies and Functionalized Nanoparticles. Inorg Chem 2016; 55:12982-12996. [DOI: 10.1021/acs.inorgchem.6b02409] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Jonathan A. Robson
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Ferran Gonzàlez de Rivera
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
- Departament de Química Inorgànica, Universitat de Barcelona, Martí Franquès 1-11, 08028 Barcelona, Spain
| | - Khairil A. Jantan
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Margot N. Wenzel
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Andrew J. P. White
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Oriol Rossell
- Departament de Química Inorgànica, Universitat de Barcelona, Martí Franquès 1-11, 08028 Barcelona, Spain
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