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Synthesis, luminescence studies and structural characterization of new Co(II) and Cu(II) complexes based on phenanthridine as a ligand. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119553] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Allison SJ, Cooke D, Davidson FS, Elliott PIP, Faulkner RA, Griffiths HBS, Harper OJ, Hussain O, Owen-Lynch PJ, Phillips RM, Rice CR, Shepherd SL, Wheelhouse RT. Ruthenium-Containing Linear Helicates and Mesocates with Tuneable p53-Selective Cytotoxicity in Colorectal Cancer Cells. Angew Chem Int Ed Engl 2018; 57:9799-9804. [PMID: 29863754 DOI: 10.1002/anie.201805510] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Indexed: 12/26/2022]
Abstract
The ligands L1 and L2 both form separable dinuclear double-stranded helicate and mesocate complexes with RuII . In contrast to clinically approved platinates, the helicate isomer of [Ru2 (L1 )2 ]4+ was preferentially cytotoxic to isogenic cells (HCT116 p53-/- ), which lack the critical tumour suppressor gene. The mesocate isomer shows the reverse selectivity, with the achiral isomer being preferentially cytotoxic towards HCT116 p53+/+ . Other structurally similar RuII -containing dinuclear complexes showed very little cytotoxic activity. This study demonstrates that alterations in ligand or isomer can have profound effects on cytotoxicity towards cancer cells of different p53 status and suggests that selectivity can be "tuned" to either genotype. In the search for compounds that can target difficult-to-treat tumours that lack the p53 tumour suppressor gene, [Ru2 (L1 )2 ]4+ is a promising compound for further development.
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Affiliation(s)
- Simon J Allison
- School of Applied Sciences, University of Huddersfield, Huddersfield, HD1 3DH, UK
| | - David Cooke
- School of Applied Sciences, University of Huddersfield, Huddersfield, HD1 3DH, UK
| | - Francesca S Davidson
- School of Applied Sciences, University of Huddersfield, Huddersfield, HD1 3DH, UK
| | - Paul I P Elliott
- School of Applied Sciences, University of Huddersfield, Huddersfield, HD1 3DH, UK
| | - Robert A Faulkner
- School of Applied Sciences, University of Huddersfield, Huddersfield, HD1 3DH, UK
| | - Hollie B S Griffiths
- School of Applied Sciences, University of Huddersfield, Huddersfield, HD1 3DH, UK
| | - Owen J Harper
- School of Applied Sciences, University of Huddersfield, Huddersfield, HD1 3DH, UK
| | - Omar Hussain
- School of Applied Sciences, University of Huddersfield, Huddersfield, HD1 3DH, UK
| | - P Jane Owen-Lynch
- School of Applied Sciences, University of Huddersfield, Huddersfield, HD1 3DH, UK
| | - Roger M Phillips
- School of Applied Sciences, University of Huddersfield, Huddersfield, HD1 3DH, UK
| | - Craig R Rice
- School of Applied Sciences, University of Huddersfield, Huddersfield, HD1 3DH, UK
| | - Samantha L Shepherd
- School of Applied Sciences, University of Huddersfield, Huddersfield, HD1 3DH, UK
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Allison SJ, Cooke D, Davidson FS, Elliott PIP, Faulkner RA, Griffiths HBS, Harper OJ, Hussain O, Owen-Lynch PJ, Phillips RM, Rice CR, Shepherd SL, Wheelhouse RT. Ruthenium-Containing Linear Helicates and Mesocates with Tuneable p53-Selective Cytotoxicity in Colorectal Cancer Cells. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805510] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Simon J. Allison
- School of Applied Sciences; University of Huddersfield; Huddersfield HD1 3DH UK
| | - David Cooke
- School of Applied Sciences; University of Huddersfield; Huddersfield HD1 3DH UK
| | | | - Paul I. P. Elliott
- School of Applied Sciences; University of Huddersfield; Huddersfield HD1 3DH UK
| | - Robert A. Faulkner
- School of Applied Sciences; University of Huddersfield; Huddersfield HD1 3DH UK
| | | | - Owen J. Harper
- School of Applied Sciences; University of Huddersfield; Huddersfield HD1 3DH UK
| | - Omar Hussain
- School of Applied Sciences; University of Huddersfield; Huddersfield HD1 3DH UK
| | - P. Jane Owen-Lynch
- School of Applied Sciences; University of Huddersfield; Huddersfield HD1 3DH UK
| | - Roger M. Phillips
- School of Applied Sciences; University of Huddersfield; Huddersfield HD1 3DH UK
| | - Craig R. Rice
- School of Applied Sciences; University of Huddersfield; Huddersfield HD1 3DH UK
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Single-, double- and triple-stranded helical metal complexes of chiral tetradentate pyridyl-thiazole ligands: Stereoselective synthesis, spectroscopic properties and structural characterization. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.05.062] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Cross JM, Fennessy RV, Harding LP, Rice CR, Hardie MJ, Slater C. Self-assembly of a heteroleptic one-dimensional chain comprising different dinuclear meso-helicates in the solid-state. Chem Commun (Camb) 2013; 49:11290-2. [PMID: 24154672 DOI: 10.1039/c3cc46722h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We describe two mesocate assemblies that contain either an ethylene glycol or ammonium group which form a heteroleptic one-dimensional infinite chain in the solid state.
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Affiliation(s)
- Jasmine M Cross
- Department of Chemical and Biological Sciences, University of Huddersfield, Huddersfield, HD1 3DH, UK.
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Cooke DJ, Cross JM, Fennessy RV, Harding LP, Rice CR, Slater C. Steric control of the formation of dinuclear double helicate and dinuclear meso-helicate assemblies. Chem Commun (Camb) 2013; 49:7785-7. [DOI: 10.1039/c3cc44611e] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bullock SJ, Harding LP, Moore MP, Mills A, Piela SAF, Rice CR, Towns-Andrews L, Whitehead M. Synthesis of ligands containing N-oxide donor atoms and their assembly into metallosupramolecular structures. Dalton Trans 2013; 42:5805-11. [DOI: 10.1039/c3dt00090g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Menzel R, Weiß D, Täuscher E, Beckert R, Görls H. Formation, X-ray structure and magnetic properties of two carboxy-bridged copper(II) complexes with tridentate bipyridine- and phenanthroline-based 1,3-thiazoles ligands. INORG CHEM COMMUN 2012. [DOI: 10.1016/j.inoche.2012.01.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Huang L, Peng Y, Li Z, Wei Z, Hughes DL, Zeng X, Luo Q, Liu X. Two Hg(II) complexes with a capped trigonal prismatic geometry derived from multidentate macrocyclic ligands containing N and S donors, with coordinated anions. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2010.03.066] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Şengül A, Wang WJ, Coles SJ. A novel dinuclear double-stranded helical complexes of bis(terdentate) N4O2 donor ligand with silver(I) and zinc(II) d10 metal ions. Polyhedron 2009. [DOI: 10.1016/j.poly.2008.10.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Bullock SJ, Felton CE, Fennessy RV, Harding LP, Andrews M, Pope SJA, Rice CR, Riis-Johannessen T. Coumarin-based luminescent ligand that forms helicates with dicationic metal ions. Dalton Trans 2009:10570-3. [DOI: 10.1039/b913103e] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Han S, Kang TY, Choi S, Choi KW, Baek SJ, Lee S, Kim SK. One-photon ionization spectroscopy of jet-cooled oxazole and thiazole: the role of oxygen and sulfur in the π-conjugation of heterocyclic compounds. Phys Chem Chem Phys 2008; 10:3883-7. [DOI: 10.1039/b719956b] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Campos-Gaxiola JJ, Höpfl H, Parra-Hake M. Coordination geometry isomerism induced by N–H⋯Cl, C–H⋯Cl, C–H⋯N, C–H⋯π and π⋯π supramolecular interactions in mercury(II) complexes with tripyridylimidazole chelating ligands. Inorganica Chim Acta 2008. [DOI: 10.1016/j.ica.2007.07.042] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Clayton HJ, Harding LP, Irvine JP, Jeffery JC, Riis-Johannessen T, Laws AP, Rice CR, Whitehead M. Metal-specific allosteric activation and deactivation of a diamine. Chem Commun (Camb) 2008:108-10. [PMID: 18399416 DOI: 10.1039/b714256k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Hayley J Clayton
- Department of Chemical and Biological Sciences, University of Huddersfield, Huddersfield, UK
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Jeffery JC, Rice CR, Harding LP, Baylies CJ, Riis-Johannessen T. Ligand Reprogramming in Dinuclear Helicate Complexes: A Consequence of Allosteric or Electrostatic Effects? Chemistry 2007; 13:5256-71. [PMID: 17431869 DOI: 10.1002/chem.200700261] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The ditopic ligand 6,6'-bis(4-methylthiazol-2-yl)-3,3'-([18]crown-6)-2,2'-bipyridine (L(1)) contains both a potentially tetradentate pyridyl-thiazole (py-tz) N-donor chain and an additional "external" crown ether binding site which spans the central 2,2'-bipyridine unit. In polar solvents (MeCN, MeNO(2)) this ligand forms complexes with Zn(II), Cd(II), Hg(II) and Cu(I) ions via coordination of the N donors to the metal ion. Reaction with both Hg(II) and Cu(I) ions results in the self-assembly of dinuclear double-stranded helicate complexes. The ligands are partitioned by rotation about the central py--py bond, such that each can coordinate to both metals as a bis-bidentate donor ligand. With Zn(II) ions a single-stranded mononuclear species is formed in which one ligand coordinates the metal ion in a planar tetradentate fashion. Reaction with Cd(II) ions gives rise to an equilibrium between both the dinuclear double-stranded helicate and the mononuclear species. These complexes can further coordinate s-block metal cations via the remote crown ether O-donor domains; a consequence of which are some remarkable changes in the binding modes of the N-donor domains. Reaction of the Hg(II)- or Cd(II)-containing helicate with either Ba(2+) or Sr(2+) ions effectively reprogrammes the ligand to form only the single-stranded heterobinuclear complexes [MM'(L(1))](4+) (M=Hg(II), Cd(II); M'=Ba(2+), Sr(2+)), where the transition and s-block cations reside in the N- and O-donor sites, respectively. In contrast, the same ions have only a minor structural impact on the Zn(II) species, which already exists as a single-stranded mononuclear complex. Similar reactions with the Cd(II) system result in a shift in equilibrium towards the single-stranded species, the extent of which depends on the size and charge of the s-block cation in question. Reaction of the dicopper(I) double-stranded helicate with Ba(2+) shows that the dinuclear structure still remains intact but the pitch length is significantly increased.
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Affiliation(s)
- John C Jeffery
- The School of Chemistry, University of Bristol, Bristol, UK
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Jeffery JC, Riis-Johannessen T, Anderson CJ, Adams CJ, Robinson A, Argent SP, Ward MD, Rice CR. Localization and Delocalization in a Mixed-Valence Dicopper Helicate. Inorg Chem 2007; 46:2417-26. [PMID: 17326619 DOI: 10.1021/ic061504m] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The coordination chemistry of the tetradentate pyridyl-thiazole (py-tz) N-donor ligand 6,6'-bis(4-phenylthiazol-2-yl)-2,2'-bipyridine (L1) has been investigated. Reaction of L1 with equimolar copper(II) ions results in the formation of the single-stranded mononuclear complex [Cu(L1)(ClO4)2] (1), whereas reaction with copper(I) ions results in the double-stranded dinuclear helicate [Cu2(L1)2][PF6]2 (2). Both complexes were characterized by X-ray crystallography, UV-vis spectroscopy, and electrospray ionization mass spectroscopy (as well as 1H NMR spectroscopy for diamagnetic 2). Complex 2 is redox-active and, upon one-electron oxidation, forms the stable tricationic mixed-valence helicate [Cu2(L1)2]3+ (3). This species can also be prepared in situ by combining [Cu(MeCN)4][BF4], [Cu(H2O)6][BF4]2, and L1 in a 1:1:2 ratio in nitromethane. X-ray crystallographic analysis of 3 provides structural evidence for the presence of an internuclear Cu-Cu bond, with an even distribution of spin density across the two Cu centers. Room-temperature UV-vis spectroscopy is consistent with this finding; however, frozen-glass EPR spectroscopic investigations suggest solvatochromic behavior at 110 K, with the [Cu2]3+ core varying from localized to delocalized depending on the solvent polarity.
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Affiliation(s)
- John C Jeffery
- School of Chemistry, University of Bristol, Bristol BS8 1TS, UK
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