1
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Haller J, Goodwin D, Luy B. SORDOR pulses: expansion of the Böhlen-Bodenhausen scheme for low-power broadband magnetic resonance. MAGNETIC RESONANCE (GOTTINGEN, GERMANY) 2022; 3:53-63. [PMID: 37905174 PMCID: PMC10539771 DOI: 10.5194/mr-3-53-2022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 03/28/2022] [Indexed: 11/02/2023]
Abstract
A novel type of efficient broadband pulse, called second-order phase dispersion by optimised rotation (SORDOR), has recently been introduced. In contrast to adiabatic excitation, SORDOR-90 pulses provide effective transverse 90∘ rotations throughout their bandwidth, with a quadratic offset dependence of the phase in the x , y plane. Together with phase-matched SORDOR-180 pulses, this enables the Böhlen-Bodenhausen broadband refocusing approach for linearly frequency-swept pulses to be extended to any type of 90∘ /180∘ pulse-delay sequence. Example pulse shapes are characterised in theory and experiment, and an example application is given with a 19 F -PROJECT experiment for measuring relaxation times with reduced distortions due to J -coupling evolution.
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Affiliation(s)
- Jens D. Haller
- Institute for Biological Interfaces 4 – Magnetic Resonance, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - David L. Goodwin
- Institute for Biological Interfaces 4 – Magnetic Resonance, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Burkhard Luy
- Institute for Biological Interfaces 4 – Magnetic Resonance, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
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2
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Kikuchi K, Sumida A, Imoto H, Naka K. Phosphorescent Metallacrown Ethers Enchained Through Coordination of Arsafluorene to Platinum(II) Dihalide. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100799] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kazuma Kikuchi
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology Kyoto Institute of Technology Goshokaido-cho, Matsugasaki, Sakyo-ku Kyoto 606-8585 Japan
| | - Akifumi Sumida
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology Kyoto Institute of Technology Goshokaido-cho, Matsugasaki, Sakyo-ku Kyoto 606-8585 Japan
| | - Hiroaki Imoto
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology Kyoto Institute of Technology Goshokaido-cho, Matsugasaki, Sakyo-ku Kyoto 606-8585 Japan
| | - Kensuke Naka
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology Kyoto Institute of Technology Goshokaido-cho, Matsugasaki, Sakyo-ku Kyoto 606-8585 Japan
- Materials Innovation Lab, Kyoto Institute of Technology Goshokaido-cho, Matsugasaki, Sakyo-ku Kyoto 606-8585 Japan
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3
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Frei A, Ramu S, Lowe GJ, Dinh H, Semenec L, Elliott AG, Zuegg J, Deckers A, Jung N, Bräse S, Cain AK, Blaskovich MAT. Platinum Cyclooctadiene Complexes with Activity against Gram-positive Bacteria. ChemMedChem 2021; 16:3165-3171. [PMID: 34018686 PMCID: PMC8596843 DOI: 10.1002/cmdc.202100157] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Indexed: 11/17/2022]
Abstract
Antimicrobial resistance is a looming health crisis, and it is becoming increasingly clear that organic chemistry alone is not sufficient to continue to provide the world with novel and effective antibiotics. Recently there has been an increased number of reports describing promising antimicrobial properties of metal-containing compounds. Platinum complexes are well known in the field of inorganic medicinal chemistry for their tremendous success as anticancer agents. Here we report on the promising antibacterial properties of platinum cyclooctadiene (COD) complexes. Amongst the 15 compounds studied, the simplest compounds Pt(COD)X2 (X=Cl, I, Pt1 and Pt2) showed excellent activity against a panel of Gram-positive bacteria including vancomycin and methicillin resistant Staphylococcus aureus. Additionally, the lead compounds show no toxicity against mammalian cells or haemolytic properties at the highest tested concentrations, indicating that the observed activity is specific against bacteria. Finally, these compounds showed no toxicity against Galleria mellonella at the highest measured concentrations. However, preliminary efficacy studies in the same animal model found no decrease in bacterial load upon treatment with Pt1 and Pt2. Serum exchange studies suggest that these compounds exhibit high serum binding which reduces their bioavailability in vivo, mandating alternative administration routes such as e. g. topical application.
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Affiliation(s)
- Angelo Frei
- Centre for Superbug SolutionsInstitute for Molecular BioscienceThe University of QueenslandSt. LuciaQLD 4072Australia
| | - Soumya Ramu
- Centre for Superbug SolutionsInstitute for Molecular BioscienceThe University of QueenslandSt. LuciaQLD 4072Australia
| | - Gabrielle J. Lowe
- Centre for Superbug SolutionsInstitute for Molecular BioscienceThe University of QueenslandSt. LuciaQLD 4072Australia
| | - Hue Dinh
- ARC Centre of Excellence in Synthetic BiologyDepartment of Molecular SciencesMacquarie UniversitySydneyNSWAustralia
| | - Lucie Semenec
- ARC Centre of Excellence in Synthetic BiologyDepartment of Molecular SciencesMacquarie UniversitySydneyNSWAustralia
| | - Alysha G. Elliott
- Centre for Superbug SolutionsInstitute for Molecular BioscienceThe University of QueenslandSt. LuciaQLD 4072Australia
| | - Johannes Zuegg
- Centre for Superbug SolutionsInstitute for Molecular BioscienceThe University of QueenslandSt. LuciaQLD 4072Australia
| | - Anke Deckers
- Institute of Organic ChemistryKarlsruhe Institute of Technology (KIT)Fritz-Haber-Weg 676131KarlsruheGermany
| | - Nicole Jung
- Institute of Organic ChemistryKarlsruhe Institute of Technology (KIT)Fritz-Haber-Weg 676131KarlsruheGermany
- Institute of Biological and Chemical Systems – Functional Molecular Systems (IBCS-FMS)Karlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
| | - Stefan Bräse
- Institute of Organic ChemistryKarlsruhe Institute of Technology (KIT)Fritz-Haber-Weg 676131KarlsruheGermany
- Institute of Biological and Chemical Systems – Functional Molecular Systems (IBCS-FMS)Karlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
| | - Amy K. Cain
- ARC Centre of Excellence in Synthetic BiologyDepartment of Molecular SciencesMacquarie UniversitySydneyNSWAustralia
| | - Mark A. T. Blaskovich
- Centre for Superbug SolutionsInstitute for Molecular BioscienceThe University of QueenslandSt. LuciaQLD 4072Australia
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4
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Bilanin C, Tiburcio E, Ferrando‐Soria J, Armentano D, Leyva‐Pérez A, Pardo E. Crystallographic Visualization of a Double Water Molecule Addition on a Pt
1
‐MOF during the Low‐temperature Water‐Gas Shift Reaction. ChemCatChem 2020. [DOI: 10.1002/cctc.202001492] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Cristina Bilanin
- Instituto de Tecnología Química Universidad Politècnica de València-Consejo Superior de Investigaciones Científicas. 46022 València Spain
| | - Estefanía Tiburcio
- Instituto de Ciencia Molecular (ICMol) Universidad de Valencia 46980 Paterna, València Spain
| | - Jesús Ferrando‐Soria
- Instituto de Ciencia Molecular (ICMol) Universidad de Valencia 46980 Paterna, València Spain
| | - Donatella Armentano
- Dipartimento di Chimica e Tecnologie Chimiche Università della Calabria 87030 Rende, Cosenza Italy
| | - Antonio Leyva‐Pérez
- Instituto de Tecnología Química Universidad Politècnica de València-Consejo Superior de Investigaciones Científicas. 46022 València Spain
| | - Emilio Pardo
- Instituto de Ciencia Molecular (ICMol) Universidad de Valencia 46980 Paterna, València Spain
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5
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Liu H, Brewer CR, Walker AV, McElwee-White L. Photochemistry of 1,5-Cyclooctadiene Platinum Complexes for Photoassisted Chemical Vapor Deposition. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00616] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hanwen Liu
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Christopher R. Brewer
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Amy V. Walker
- Department of Materials Science and Engineering, University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Lisa McElwee-White
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
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6
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Boulet MHC, Marsh LK, Howarth A, Woolman A, Farrer NJ. Oxaliplatin and [Pt(R,R-DACH)(panobinostat -2H)] show nanomolar cytotoxicity towards diffuse intrinsic pontine glioma (DIPG). Dalton Trans 2020; 49:5703-5710. [PMID: 32297619 DOI: 10.1039/c9dt04862f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
We report the synthesis of two novel platinum(ii) complexes which incorporate histone deacetylase (HDAC) inhibitors: [PtII(R,R-DACH)(Sub-H)] (1), [PtII(R,R-DACH)(panobinostat-2H)] (2), where SubH = suberoyl-bis-hydroxamic acid; DACH = (1R,2R)-(-)-1,2-diaminocyclohexane and panobinostat = (E)-N-hydroxy-3-[4-[[2-(2-methyl-1H-indol-3-yl)ethylamino]methyl]phenyl]prop-2-enamide. Complexes 1 and 2 were characterised by 1H, 13C, 195Pt NMR spectroscopy and ESI-MS. Whilst oxaliplatin demonstrated considerable cytotoxicity in two patient-derived low-passage paediatric glioma DIPG cell lines (IC50 values of 0.333 μM in SU-DIPG-IV, and 0.135 μM in SU-DIPG-XXI), complex 2 showed even greater cytotoxicities, with IC50 values of 0.021 μM (SU-DIPG-IV), 0.067 μM (BIOMEDE 194) and 0.009 μM (SU-DIPG-XXI). Complex 2 also demonstrated superior aqueous solubility in comparison to panobinostat. Complex 2 released free intact panobinostat under HPLC conditions, as determined by ESI-MS. Incubation of solutions of oxaliplatin (H2O) and panobinostat (DMF) resulted in instantaneous reactivity and precipitation of a panobinostat derivative which was not a platinum complex; the same reactivity was not observed between carboplatin and panobinostat.
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Affiliation(s)
- Marie H C Boulet
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK.
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7
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Frei A, Zuegg J, Elliott AG, Baker M, Braese S, Brown C, Chen F, G Dowson C, Dujardin G, Jung N, King AP, Mansour AM, Massi M, Moat J, Mohamed HA, Renfrew AK, Rutledge PJ, Sadler PJ, Todd MH, Willans CE, Wilson JJ, Cooper MA, Blaskovich MAT. Metal complexes as a promising source for new antibiotics. Chem Sci 2020; 11:2627-2639. [PMID: 32206266 PMCID: PMC7069370 DOI: 10.1039/c9sc06460e] [Citation(s) in RCA: 228] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 02/10/2020] [Indexed: 12/16/2022] Open
Abstract
There is a dire need for new antimicrobial compounds to combat the growing threat of widespread antibiotic resistance. With a currently very scarce drug pipeline, consisting mostly of derivatives of known antibiotics, new classes of antibiotics are urgently required. Metal complexes are currently in clinical development for the treatment of cancer, malaria and neurodegenerative diseases. However, only little attention has been paid to their application as potential antimicrobial compounds. We report the evaluation of 906 metal-containing compounds that have been screened by the Community for Open Antimicrobial Drug Discovery (CO-ADD) for antimicrobial activity. Metal-bearing compounds display a significantly higher hit-rate (9.9%) when compared to the purely organic molecules (0.87%) in the CO-ADD database. Out of 906 compounds, 88 show activity against at least one of the tested strains, including fungi, while not displaying any cytotoxicity against mammalian cell lines or haemolytic properties. Herein, we highlight the structures of the 30 compounds with activity against Gram-positive and/or Gram-negative bacteria containing Mn, Co, Zn, Ru, Ag, Eu, Ir and Pt, with activities down to the nanomolar range against methicillin resistant S. aureus (MRSA). 23 of these complexes have not been reported for their antimicrobial properties before. This work reveals the vast diversity that metal-containing compounds can bring to antimicrobial research. It is important to raise awareness of these types of compounds for the design of truly novel antibiotics with potential for combatting antimicrobial resistance.
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Affiliation(s)
- Angelo Frei
- Centre for Superbug Solutions , Institute for Molecular Bioscience , The University of Queensland , St. Lucia , Queensland 4072 , Australia . ;
| | - Johannes Zuegg
- Centre for Superbug Solutions , Institute for Molecular Bioscience , The University of Queensland , St. Lucia , Queensland 4072 , Australia . ;
| | - Alysha G Elliott
- Centre for Superbug Solutions , Institute for Molecular Bioscience , The University of Queensland , St. Lucia , Queensland 4072 , Australia . ;
| | - Murray Baker
- School of Molecular Sciences , The University of Western Australia , Stirling Highway , 6009 Perth , Australia
| | - Stefan Braese
- Institute of Organic Chemistry , Karlsruhe Institute of Technology (KIT) , Fritz-Haber-Weg 6 , 76131 Karlsruhe , Germany
- Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS) , Karlsruhe Institute of Technology (KIT) , Hermann-von-Helmholtz-Platz 1 , D-76344 Eggenstein-Leopoldshafen , Germany
| | - Christopher Brown
- School of Medical Sciences (Discipline of Pharmacology) , University of Sydney , Australia
| | - Feng Chen
- Department of Chemistry , University of Warwick , Gibbet Hill Road , Coventry CV4 7AL , UK
| | - Christopher G Dowson
- Antimicrobial Screening Facility , School of Life Sciences , University of Warwick , Gibbet Hill Road , Coventry CV4 7AL , UK
| | - Gilles Dujardin
- Institute of Molecules and Matter of Le Mans (IMMM) , UMR 6283 CNRS , Le Mans Université , France
| | - Nicole Jung
- Institute of Organic Chemistry , Karlsruhe Institute of Technology (KIT) , Fritz-Haber-Weg 6 , 76131 Karlsruhe , Germany
- Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS) , Karlsruhe Institute of Technology (KIT) , Hermann-von-Helmholtz-Platz 1 , D-76344 Eggenstein-Leopoldshafen , Germany
| | - A Paden King
- Department of Chemistry and Chemical Biology , Cornell University , Ithaca , NY 14853 , USA
| | - Ahmed M Mansour
- Chemistry Department , Faculty of Science , Cairo University , Egypt
| | - Massimiliano Massi
- School of Molecular and Life Sciences - Curtin Institute for Functional Materials and Interfaces , Curtin University , Kent Street , 6102 Bentley WA , Australia
| | - John Moat
- Antimicrobial Screening Facility , School of Life Sciences , University of Warwick , Gibbet Hill Road , Coventry CV4 7AL , UK
| | - Heba A Mohamed
- School of Chemistry , University of Leeds , Woodhouse Lane , Leeds LS2 9JT , UK
| | - Anna K Renfrew
- School of Chemistry , The University of Sydney , Sydney , NSW 2006 , Australia
| | - Peter J Rutledge
- School of Medical Sciences (Discipline of Pharmacology) , University of Sydney , Australia
| | - Peter J Sadler
- Department of Chemistry , University of Warwick , Gibbet Hill Road , Coventry CV4 7AL , UK
| | - Matthew H Todd
- School of Chemistry , The University of Sydney , Sydney , NSW 2006 , Australia
- School of Pharmacy , University College London , London , WC1N 1AX , UK
| | - Charlotte E Willans
- School of Chemistry , University of Leeds , Woodhouse Lane , Leeds LS2 9JT , UK
| | - Justin J Wilson
- Department of Chemistry and Chemical Biology , Cornell University , Ithaca , NY 14853 , USA
| | - Matthew A Cooper
- Centre for Superbug Solutions , Institute for Molecular Bioscience , The University of Queensland , St. Lucia , Queensland 4072 , Australia . ;
| | - Mark A T Blaskovich
- Centre for Superbug Solutions , Institute for Molecular Bioscience , The University of Queensland , St. Lucia , Queensland 4072 , Australia . ;
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8
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Neugebauer M, Schmitz S, Brünink D, Doltsinis NL, Klein A. Dynamics of the efficient cyclometalation of the undercoordinated organoplatinum complex [Pt(COD)(neoPh)] + (neoPh = 2-methyl-2-phenylpropyl). NEW J CHEM 2020. [DOI: 10.1039/d0nj04811a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The cyclometalation reaction of [Pt(COD)(κ1-neoPh)]+ (neoPh = 2-methyl-2-phenylpropyl) to [Pt(COD)(κ2-neoPh)] was studied experimentally and mechanistically using DFT and MD simulations.
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Affiliation(s)
- Michael Neugebauer
- University of Cologne
- Department of Chemistry
- Institute for Inorganic Chemistry
- D-50939 Cologne
- Germany
| | - Simon Schmitz
- University of Cologne
- Department of Chemistry
- Institute for Inorganic Chemistry
- D-50939 Cologne
- Germany
| | - Dana Brünink
- Westfälische Wilhelms-Universität Münster
- Institut für Festkörpertheorie and Center for Multiscale Theory and Computation
- 48149 Münster
- Germany
| | - Nikos L. Doltsinis
- Westfälische Wilhelms-Universität Münster
- Institut für Festkörpertheorie and Center for Multiscale Theory and Computation
- 48149 Münster
- Germany
| | - Axel Klein
- University of Cologne
- Department of Chemistry
- Institute for Inorganic Chemistry
- D-50939 Cologne
- Germany
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9
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Drover MW, Bowes EG, Dufour MC, Lesperance-Nantau LA. Platinum complexes of a boron-rich diphosphine ligand. Dalton Trans 2020; 49:16312-16318. [DOI: 10.1039/d0dt00963f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we describe the preparation, characterization, and reactivity of two PtII bis-hydrocarbyl complexes containing the 1,2-bis(di(3-dicyclohexylboraneyl)propylphosphino)ethane (P2BCy4) ligand.
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Affiliation(s)
- Marcus W. Drover
- Department of Chemistry and Biochemistry
- The University of Windsor
- Windsor
- Canada
| | - Eric G. Bowes
- Chemistry Division
- Los Alamos National Laboratory
- Los Alamos
- USA
| | - Maeve C. Dufour
- Department of Chemistry and Biochemistry
- The University of Windsor
- Windsor
- Canada
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10
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Qin QP, Wang ZF, Huang XL, Tan MX, Zou BQ, Liang H. Strong in vitro and vivo cytotoxicity of novel organoplatinum(II) complexes with quinoline-coumarin derivatives. Eur J Med Chem 2019; 184:111751. [DOI: 10.1016/j.ejmech.2019.111751] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 09/29/2019] [Accepted: 09/30/2019] [Indexed: 12/22/2022]
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11
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Jeantelot G, Qureshi M, Harb M, Ould-Chikh S, Anjum DH, Abou-Hamad E, Aguilar-Tapia A, Hazemann JL, Takanabe K, Basset JM. TiO2-supported Pt single atoms by surface organometallic chemistry for photocatalytic hydrogen evolution. Phys Chem Chem Phys 2019; 21:24429-24440. [DOI: 10.1039/c9cp04470a] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Platinum single atoms are grafted by SOMC on morphology-controlled TiO2. Their structure is characterized by EXAFS and other techniques, and their activity and stability in HER and backwards reaction are studied and compared to Pt nanoparticles.
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Affiliation(s)
- Gabriel Jeantelot
- Kaust Catalysis Center (KCC), Physical Science and Engineering Division (PSE)
- King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Saudi Arabia
| | - Muhammad Qureshi
- Kaust Catalysis Center (KCC), Physical Science and Engineering Division (PSE)
- King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Saudi Arabia
| | - Moussab Harb
- Kaust Catalysis Center (KCC), Physical Science and Engineering Division (PSE)
- King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Saudi Arabia
| | - Samy Ould-Chikh
- Kaust Catalysis Center (KCC), Physical Science and Engineering Division (PSE)
- King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Saudi Arabia
| | - Dalaver H. Anjum
- Core Labs
- King Abdullah University of Science and Technology (KAUST)
- Thuwal
- Saudi Arabia
| | - Edy Abou-Hamad
- Core Labs
- King Abdullah University of Science and Technology (KAUST)
- Thuwal
- Saudi Arabia
| | | | | | - Kazuhiro Takanabe
- Kaust Catalysis Center (KCC), Physical Science and Engineering Division (PSE)
- King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Saudi Arabia
| | - Jean-Marie Basset
- Kaust Catalysis Center (KCC), Physical Science and Engineering Division (PSE)
- King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Saudi Arabia
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13
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Neugebauer M, Schmitz S, Krause M, L. Doltsinis N, Klein A. Reactions of the organoplatinum complex [Pt(cod) (neoSi)Cl] (neoSi = trimethylsilylmethyl) with the non-coordinating anions SbF6– and BPh4–. OPEN CHEM 2018. [DOI: 10.1515/chem-2018-0130] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractReactions of the organoplatinum complex [Pt(cod)(neoSi)Cl] (neoSi = (trimethylsilylmethyl) with the Ag(I) salts of oxo or fluoride containing anions A– = NO3–, ClO4–, OTf – (trifluoromethanesulfonate) and SbF6– lead to the desired abstraction of the chlorido ligand and precipitation of AgCl. However, further reaction of the resulting Pt complexes [Pt(cod)(neoSi) (solvent)]+ with diverse N-heterocyclic ligands L such as pyridines, caffeine, and guanine did not yield the targeted complexes [Pt(cod)(neoSi)(L)](A) in most of the cases, but to extensive decomposition yielding [Pt(cod)(Me) (solvent)]+, thus transforming the neoSi into a methyl ligand. A detailed study on the reaction with SbF6– combining DFT calculations with NMR and MS revealed that Pt catalysed decomposition of SbF6‒ and fluorination of the neoSi silicon atom leading to FSiMe3. When reacting the parent complex with Ag(BPh4), the arylated derivative [Pt(cod)(neoSi)(Ph)] was obtained and characterised by multinuclear NMR, MS and single crystal XRD.
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Affiliation(s)
- Michael Neugebauer
- Universität zu Köln, Department für Chemie, Institut für Anorganische Chemie Greinstraße 6, D-50939Köln, Germany
| | - Simon Schmitz
- Universität zu Köln, Department für Chemie, Institut für Anorganische Chemie Greinstraße 6, D-50939Köln, Germany
| | - Maren Krause
- Universität zu Köln, Department für Chemie, Institut für Anorganische Chemie Greinstraße 6, D-50939Köln, Germany
| | - Nikos L. Doltsinis
- Westfälische Wilhelms-Universität Münster, Institut für Festkörpertheorie and Center for Multiscale Theory and Computation, Wilhelm-Klemm-Straße 10, 48149Münster, Germany
| | - Axel Klein
- Universität zu Köln, Department für Chemie, Institut für Anorganische Chemie Greinstraße 6, D-50939Köln, Germany
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14
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Cullinane C, Deacon GB, Drago PR, Erven AP, Junk PC, Luu J, Meyer G, Schmitz S, Ott I, Schur J, Webster LK, Klein A. Synthesis and antiproliferative activity of a series of new platinum and palladium diphosphane complexes. Dalton Trans 2018; 47:1918-1932. [PMID: 29340396 DOI: 10.1039/c7dt04615d] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
New organometallic complexes [M(dppe)(R)2] {where M = Pt or Pd, dppe = 1,2-bis(diphenylphosphano)ethane, and R = C6F4H-x (x = 6,5,4), C6F3H2-3,5, C6F3H2-5,6, C6F3H2-3,6, C6F4(OMe)-4, and C6F4(cyclo-C5H10N)-4, the numbers x refer to the positions of the protons in the polyfluoroaryl ligands} were synthesised either through transmetalation from the dichlorido complexes [M(dppe)Cl2] or through ligand exchange using [M(diene)Cl2] precursor complexes with diene = 1,5-cyclooctadiene (cod) or 1,5-hexadiene (hex). Alternatively, [M(dppX)Cl(R)] complexes with dppX = dppm (1,1-bis(diphenylphosphano)methane), dppe, dppp (1,3-bis(diphenylphosphano)propane), and dppb (1,4-bis(diphenylphosphano)butane) were prepared in decarboxylation reactions from thallium(i) carboxylates Tl(O2CR). The different preparative methods were compared in terms of yield and purity. Structural and spectroscopic data are reported for the new dppX- and diene-M(R)2 complexes. Antiproliferative activity was investigated for these new complexes against the HT-29 (colon carcinoma) and MCF-7 (breast adenocarcinoma) cell lines, and the active compounds of this first series together with organometallic dppX or hex PtII or PdII complexes were then included in cell tests using L1210 (leukaemia cells) and the cisplatin-resistant L1210/DDP cell line. Remarkably, promising antiproliferative results were found for a few PtII and PdII complexes, while structurally closely related compounds were essentially nontoxic.
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Affiliation(s)
- Carleen Cullinane
- Peter MacCallum Cancer Center, 305 Grattan Street, Melbourne Vic 3000, Australia and Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Melbourne Vic 3052, Australia
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15
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Wandler AEE, Koos MRM, Nieger M, Luy B, Bräse S. 1,5-Cyclooctadienyl alcohols and ketones generate a new class of COD Pt complexes. Dalton Trans 2018; 47:3689-3692. [DOI: 10.1039/c8dt00075a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A variety of new racemic alcohol and ketone cyclooctadiene derivatives was prepared for their complexation with platinum to generate a new class of platinum(ii) complexes.
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Affiliation(s)
- Angela E. E. Wandler
- Institute of Organic Chemistry
- Karlsruhe Institute of Technology (KIT)
- 76131 Karlsruhe
- Germany
| | - Martin R. M. Koos
- Institute of Organic Chemistry
- Karlsruhe Institute of Technology (KIT)
- 76131 Karlsruhe
- Germany
- Institute for Biological Interfaces 4 – Magnetic Resonance
| | - Martin Nieger
- Department of Chemistry
- University of Helsinki
- Finland
| | - Burkhard Luy
- Institute of Organic Chemistry
- Karlsruhe Institute of Technology (KIT)
- 76131 Karlsruhe
- Germany
- Institute for Biological Interfaces 4 – Magnetic Resonance
| | - Stefan Bräse
- Institute of Organic Chemistry
- Karlsruhe Institute of Technology (KIT)
- 76131 Karlsruhe
- Germany
- Institute of Toxicology and Genetics
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16
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Fereidoonnezhad M, Shahsavari HR, Abedanzadeh S, Nezafati A, Khazali A, Mastrorilli P, Babaghasabha M, Webb J, Faghih Z, Faghih Z, Bahemmat S, Beyzavi MH. Synthesis, structural characterization, biological evaluation and molecular docking studies of new platinum( ii) complexes containing isocyanides. NEW J CHEM 2018. [DOI: 10.1039/c7nj04819j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Platinum(ii) complexes with various isocyanides are prepared and their biological activities are studied.
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17
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Mundil R, Sokolohorskyj A, Hošek J, Cvačka J, Císařová I, Kvíčala J, Merna J. Nickel and palladium complexes with fluorinated alkyl substituted α-diimine ligands for living/controlled olefin polymerization. Polym Chem 2018. [DOI: 10.1039/c8py00201k] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Living/controlled olefin polymerization is displayed by novel nickel and palladium diimine catalysts with fluorinated tails.
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Affiliation(s)
- Robert Mundil
- Department of Polymers
- University of Chemistry and Technology
- 166 28 Prague 6
- Czech Republic
| | - Anatolij Sokolohorskyj
- Department of Polymers
- University of Chemistry and Technology
- 166 28 Prague 6
- Czech Republic
| | - Jan Hošek
- Department of Organic Chemistry
- University of Chemistry and Technology
- 166 28 Prague 6
- Czech Republic
| | - Josef Cvačka
- Institute of Organic Chemistry and Biochemistry v.v.i
- Academy of Sciences of the Czech Republic
- Prague 6
- Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry
- Faculty of Science
- Charles University in Prague
- 128 40 Prague 2
- Czech Republic
| | - Jaroslav Kvíčala
- Department of Organic Chemistry
- University of Chemistry and Technology
- 166 28 Prague 6
- Czech Republic
| | - Jan Merna
- Department of Polymers
- University of Chemistry and Technology
- 166 28 Prague 6
- Czech Republic
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18
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Joksch M, Haak J, Spannenberg A, Beweries T. Synthesis, Characterisation and Hydrogen Bonding of Isostructural Group 10 Metal Halido Complexes Bearing a POCOP Ligand. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700680] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Markus Joksch
- Leibniz-Institut für Katalyse an der Universität Rostock e.V.; Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Julia Haak
- Leibniz-Institut für Katalyse an der Universität Rostock e.V.; Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Anke Spannenberg
- Leibniz-Institut für Katalyse an der Universität Rostock e.V.; Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Torsten Beweries
- Leibniz-Institut für Katalyse an der Universität Rostock e.V.; Albert-Einstein-Strasse 29a 18059 Rostock Germany
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19
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Wandler AEE, Bräse S. Expeditious Synthesis of Functionalized 1-Arylcyclooctadienes via
Palladium-Catalyzed Lithium Cross-Coupling. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600887] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Angela E. E. Wandler
- Institute of Organic Chemistry; Karlsruhe Institute of Technology (KIT); Fritz-Haber-Weg 6 76131 Karlsruhe Germany
| | - Stefan Bräse
- Institute of Organic Chemistry; Karlsruhe Institute of Technology (KIT); Fritz-Haber-Weg 6 76131 Karlsruhe Germany
- Institute of Toxicology and Genetics; Karlsruhe Institute of Technology (KIT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
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20
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Liu XH, Leng J, Jia SJ, Hao JH, Zhang F, Qin HL, Zhang CP. Copper-mediated aerobic iodination and perfluoroalkylation of boronic acids with (CF 3 ) 2 CFI at room temperature. J Fluor Chem 2016. [DOI: 10.1016/j.jfluchem.2016.07.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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21
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Synthesis and characterisation of organo-platinum(II) complexes of the N,O-donor ligands hippuric acid (N-benzoylglycine) and N-phenylanthranilic acid. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.05.053] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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22
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Völcker F, Roesky PW. Bimetallic rare-earth/platinum complexes ligated by phosphinoamides. Dalton Trans 2016; 45:9429-35. [DOI: 10.1039/c6dt00417b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The heterometallic early-late 5d/4f binuclear phosphinoamido Ln/Pt(0) complexes [(Ph2PNHPh)Pt{μ-(Ph2PNPh)}3Ln(μ-Cl)Li(THF)3] (Ln = Y, Lu) and [(Ph2PNHPh)Pt{μ-(Ph2PNPh)}3Ln{η2-(Ph2PNPh)}][Li(THF)4] (Ln = Y, Lu) are reported.
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Affiliation(s)
- Franziska Völcker
- Institut für Anorganische Chemie
- Karlsruher Institut für Technologie (KIT)
- 76131 Karlsruhe
- Germany
| | - Peter W. Roesky
- Institut für Anorganische Chemie
- Karlsruher Institut für Technologie (KIT)
- 76131 Karlsruhe
- Germany
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23
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Jean S, Cormier K, Patterson AE, Vogels CM, Decken A, Robichaud GA, Turcotte S, Westcott SA. Synthesis, characterization, and anticancer properties of organometallic Schiff base platinum complexes. CAN J CHEM 2015. [DOI: 10.1139/cjc-2015-0157] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A small family of organometallic platinum complexes containing a chloride, cis-cyclooctene, and a Schiff base ligand have been prepared and characterized fully. Three aliphatic amines and four aromatic amines were chosen as representative examples. All complexes were stable in air except for 7, derived from the pinacol-protected 4-aminophenylboronate ester 4-H2NC6H4Bpin (pin = 1,2-O2C2Me4), which decomposed via B–C bond cleavage. Both complexes 4 (derived from aniline) and 7 were further characterized by single-crystal X-ray diffraction studies and confirmed the square planar nature of the platinum centre whereby the chloride ligand lies trans to the deprotonated hydroxyl group of the Schiff base ligand. The imine functionality is trans to the organic cyclooctene group. Complex 3, which contained the longest aliphatic chain studied (an octyl group), was the most promising for inducing apoptosis in the malignant MB231 breast cancer cell line. Conversely, complexes 4–6, which contained aromatic groups, were the most active against renal cell carcinoma (RCC) cell lines.
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Affiliation(s)
- Stéphanie Jean
- Département de chimie et biochimie, Université de Moncton, Campus de Moncton, Moncton, NB E1A 3E9, Canada
- Atlantic Cancer Research Institute, Moncton, NB E1C 8X3, Canada
| | - Kevin Cormier
- Département de chimie et biochimie, Université de Moncton, Campus de Moncton, Moncton, NB E1A 3E9, Canada
- Atlantic Cancer Research Institute, Moncton, NB E1C 8X3, Canada
| | - Alyssa E. Patterson
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Christopher M. Vogels
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Andreas Decken
- Department of Chemistry, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
| | - Gilles A. Robichaud
- Département de chimie et biochimie, Université de Moncton, Campus de Moncton, Moncton, NB E1A 3E9, Canada
- Atlantic Cancer Research Institute, Moncton, NB E1C 8X3, Canada
| | - Sandra Turcotte
- Département de chimie et biochimie, Université de Moncton, Campus de Moncton, Moncton, NB E1A 3E9, Canada
- Atlantic Cancer Research Institute, Moncton, NB E1C 8X3, Canada
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
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24
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Frik M, Fernández-Gallardo J, Gonzalo O, Mangas-Sanjuan V, González-Alvarez M, Serrano del Valle A, Hu C, González-Alvarez I, Bermejo M, Marzo I, Contel M. Cyclometalated Iminophosphorane Gold(III) and Platinum(II) Complexes. A Highly Permeable Cationic Platinum(II) Compound with Promising Anticancer Properties. J Med Chem 2015; 58:5825-41. [PMID: 26147404 PMCID: PMC4538566 DOI: 10.1021/acs.jmedchem.5b00427] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
![]()
New
organometallic gold(III) and platinum(II) complexes containing
iminophosphorane ligands are described. Most of them are more cytotoxic
to a number of human cancer cell lines than cisplatin. Cationic Pt(II)
derivatives 4 and 5, which differ only in
the anion, Hg2Cl62– or PF6– respectively, display almost identical
IC50 values in the sub-micromolar range (25–335-fold
more active than cisplatin on these cell lines). The gold compounds
induced mainly caspase-independent cell death, as previously reported
for related cycloaurated compounds containing IM ligands. Cycloplatinated
compounds 3, 4, and 5 can also
activate alternative caspase-independent mechanisms of death. However,
at short incubation times cell death seems to be mainly caspase dependent,
suggesting that the main mechanism of cell death for these compounds
is apoptosis. Mercury-free compound 5 does not interact
with plasmid (pBR322) DNA or with calf thymus DNA. Permeability studies
of 5 by two different assays, in vitro Caco-2 monolayers and a rat perfusion model, have revealed a high
permeability profile for this compound (comparable to that of metoprolol
or caffeine) and an estimated oral fraction absorbed of 100%, which
potentially makes it a good candidate for oral administration.
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Affiliation(s)
- Malgorzata Frik
- †Department of Chemistry, Brooklyn College, The City University of New York, Brooklyn, New York 11210, United States.,‡Chemistry Ph.D. Program, The Graduate Center, The City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
| | - Jacob Fernández-Gallardo
- †Department of Chemistry, Brooklyn College, The City University of New York, Brooklyn, New York 11210, United States
| | - Oscar Gonzalo
- §Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Ciencias, Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Víctor Mangas-Sanjuan
- ∥Departamento de Ingeniería, Área Farmacia y Tecnología Farmacéutica, Universidad Miguel Hernández, 03550 San Juan, Alicante, Spain
| | - Marta González-Alvarez
- ∥Departamento de Ingeniería, Área Farmacia y Tecnología Farmacéutica, Universidad Miguel Hernández, 03550 San Juan, Alicante, Spain
| | - Alfonso Serrano del Valle
- §Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Ciencias, Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Chunhua Hu
- ⊥Chemistry Department, New York University, New York, New York 10003, United States
| | - Isabel González-Alvarez
- ∥Departamento de Ingeniería, Área Farmacia y Tecnología Farmacéutica, Universidad Miguel Hernández, 03550 San Juan, Alicante, Spain
| | - Marival Bermejo
- ∥Departamento de Ingeniería, Área Farmacia y Tecnología Farmacéutica, Universidad Miguel Hernández, 03550 San Juan, Alicante, Spain
| | - Isabel Marzo
- §Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Ciencias, Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - María Contel
- †Department of Chemistry, Brooklyn College, The City University of New York, Brooklyn, New York 11210, United States.,‡Chemistry Ph.D. Program, The Graduate Center, The City University of New York, 365 Fifth Avenue, New York, New York 10016, United States.,#Biology Ph.D. Program, The Graduate Center, The City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
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25
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Hošek J, Rybáčková M, Čejka J, Cvačka J, Kvíčala J. Synthesis of Heavy Fluorous Ruthenium Metathesis Catalysts Using the Stereoselective Addition of Polyfluoroalkyllithium to Sterically Hindered Diimines. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00325] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Jan Hošek
- Department
of Organic Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech Republic
| | - Markéta Rybáčková
- Department
of Organic Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech Republic
| | - Jan Čejka
- Department
of Solid State Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech Republic
| | - Josef Cvačka
- Institute
of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo nám. 2, 166
10 Prague 6, Czech Republic
| | - Jaroslav Kvíčala
- Department
of Organic Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech Republic
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26
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Five Coordinate Platinum(II) in [Pt(bpy)(cod)(Me)][SbF6]: A Structural and Spectroscopic Study. INORGANICS 2015. [DOI: 10.3390/inorganics3020118] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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27
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Kolaříková V, Šimůnek O, Rybáčková M, Cvačka J, Březinová A, Kvíčala J. Transition metal complexes bearing NHC ligands substituted with secondary polyfluoroalkyl groups. Dalton Trans 2015; 44:19663-73. [DOI: 10.1039/c5dt02258d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Silver and palladium complexes bearing dihydroimidazolylidene or imidazolidinylidene NHC ligands substituted with racemic secondary polyfluoroalkyl groups were synthesized.
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Affiliation(s)
- V. Kolaříková
- Department of Organic Chemistry
- University of Chemistry and Technology
- Prague
- 166 28 Prague 6
- Czech Republic
| | - O. Šimůnek
- Department of Organic Chemistry
- University of Chemistry and Technology
- Prague
- 166 28 Prague 6
- Czech Republic
| | - M. Rybáčková
- Department of Organic Chemistry
- University of Chemistry and Technology
- Prague
- 166 28 Prague 6
- Czech Republic
| | - J. Cvačka
- Institute of Organic Chemistry and Biochemistry
- Academy of Sciences of the Czech Republic
- 166 10 Prague 6
- Czech Republic
| | - A. Březinová
- Institute of Organic Chemistry and Biochemistry
- Academy of Sciences of the Czech Republic
- 166 10 Prague 6
- Czech Republic
| | - J. Kvíčala
- Department of Organic Chemistry
- University of Chemistry and Technology
- Prague
- 166 28 Prague 6
- Czech Republic
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28
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Lüning A, Neugebauer M, Lingen V, Krest A, Stirnat K, Deacon GB, Drago PR, Ott I, Schur J, Pantenburg I, Meyer G, Klein A. Platinum Diolefin Complexes - Synthesis, Structures, and Cytotoxicity. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402954] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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