Vickie McKee
University of Southern Denmark
Crystal structureOrganic chemistryInorganic chemistryChemistryLigand
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Publications 359
#1Khadija Munawar (UM: University of Malaya)H-Index: 2
#2Muhammad Adil Mansoor (National University of Sciences and Technology)H-Index: 10
Last. Muhammad Mazhar (National University of Sciences and Technology)
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Abstract Inspired from the μ-oxido CaMn4 cluster unit present in the photosystem-II of plant cells, various manganese-based materials, particularly calcium-manganese oxides, have been investigated by the researchers as a new class of catalysts. Herein, we report the synthesis of single source heterobimetallic complex {[CaMn(OAc)(TFA)3(THF)(H2O)2].3THF}n (where OAc = acetate, TFA = trifluoroacetate and THF = tetrahydrofuran) for the deposition of thin films of Ca2Mn3O8–CaO composite on fluorine d...
#1Nicolò Zuin Fantoni (University of Oxford)
#2Zara Molphy (DCU: Dublin City University)H-Index: 7
Last. Martin Clynes (DCU: Dublin City University)H-Index: 46
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We report a series of copper(II) artificial metallo-nucleases (AMNs) and demonstrate their DNA damaging properties and in vitro cytotoxicity against human-derived pancreatic cancer cells. The compounds combine a tris-chelating polypyridyl ligand, di -(2-pycolyl)amine (DPA), and a DNA intercalating phenanthrene unit. Their general formula is Cu-DPA-N,N´ (where N,N´ = 1,10-phenanthroline (Phen), dipyridoquinoxaline (DPQ) or dipyridophenazine (DPPZ)). Characterisation was achieved by X-ray crystall...
#1Claire Deville (AU: Aarhus University)
#1Claire DevilleH-Index: 2
Last. Kirsten M. Ø. Jensen (UCPH: University of Copenhagen)H-Index: 8
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: A series of semicrystalline and amorphous one-dimensional (1D) polymeric chains consisting of cubane-like CoII4L4 units (L = S-1,2-bis(benzimidazol-2-yl)ethanol) and dicarboxylates were synthesized and characterized by single crystal diffraction and X-ray total scattering. The polycationic chains are composed of [Co4L4(dicarboxylate)]2+ monomeric units, while one molecular dicarboxylate counterion is balancing the charge of each monomer. The linear compound series has five members, and the cry...
#1Dimitris Matiadis (NTUA: National Technical University of Athens)H-Index: 5
#2Dimitrios Tsironis (NTUA: National Technical University of Athens)H-Index: 2
Last. John Markopoulos (UoA: National and Kapodistrian University of Athens)H-Index: 16
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Abstract The steady rise of the antimicrobial resistance is a major global threat to human health that requires the urgent need for novel antibiotics. In this work we report the synthesis of a small library of 3-subsituted-5-arylidene tetramic acids in order to investigate the scope of our previously established methodology via an intermediate oxazolone and their antimicrobial activity. From this series of 14 tetramic acids, 11 derivatives are novel and one of them is a Schiff base, which was st...
#1Zaib-un-Nisa (QAU: Quaid-i-Azam University)
#2Muhammad Salman Shabbir (QAU: Quaid-i-Azam University)H-Index: 9
Last. Hammad Ismail (UOG: University of Gujrat)H-Index: 13
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Abstract Two phenol based esters phenyl benzoate (OE1) and 1-naphthyl benzoate (OE2) were synthesized from phenol/1-naphthol and benzoyl chloride respectively. The structural elucidation of the synthesized compounds was accomplished by spectroscopic studies (FTIR, 1H NMR & GC-MS) and single crystal X-ray diffraction analysis. DPPH (2, 2-diphenyl-1-picryl-hydrazyl-hydrate) free radical and hydrogen peroxide activities were performed to evaluate the antioxidant capabilities of the synthesized este...
#1Muhammad Sirajuddin (University of Science and Technology)H-Index: 17
#2Saqib Ali (QAU: Quaid-i-Azam University)H-Index: 30
Last. Abdul Matin (Majmaah University)H-Index: 2
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Abstract This article focus on the synthesis of three 5-coordinated Sn(IV) complexes based on carboxylate ligand: 4-((4-methoxy-2-nitrophenyl)amino)-4-oxobutanoic acid. The complexes were characterized in both solid state (FT-IR, single crystal XRD and micro elemental analysis) as well as in solution state (1H, 13C and 119Sn NMR) and their results demonstrate that the carboxylate moiety of the ligand is linked with Sn atom. A 5-coordinated trigonal bipyramidal structure was obtained from crystal...
1 CitationsSource
#1Anders B. A. Andersen (University of Southern Denmark)
#2Ari Pyykkönen (University of Oulu)
Last. Ulla Gro Nielsen (University of Southern Denmark)H-Index: 17
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13C solid-state MAS NMR spectra of a series of paramagnetic metal acetylacetonate complexes; [VO(acac)2] (d1, S = ½), [V(acac)3] (d2, S = 1), [Ni(acac)2(H2O)2] (d8, S = 1), and [Cu(acac)2] (d9, S = ½), were assigned using modern NMR shielding calculations. This provided a reliable assignment of the chemical shifts and a qualitative insight into the hyperfine couplings. Our results show a reversal of the isotropic 13C shifts, δiso(13C), for CH3 and CO between the d1 and d2 versus the d8 and d9 ac...
#1M. Ørndrup Nielsen (University of Southern Denmark)
#2P. Brilner Lund (University of Southern Denmark)
Last. C. Wegeberg (University of Southern Denmark)
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Abstract Cu2Mo10O30 was prepared as a monophasic material comprising dark blue platy crystals by reacting Cu with MoO3 under argon at 550 °C. Single-crystal X-ray diffractometry showed that Cu2Mo10O30 is a stoichiometric compound that crystallizes with a monoclinic (C2/c) cell: a = 16.6359(6); b = 9.3112(3); c = 27.1597(9) A; β = 102.621(3)° (Z = 8). Electron paramagnetic resonance spectroscopy revealed that Cu2Mo10O30 displays mixed-valency; (CuI2−xCuIIx)(MoV2+xMoVI8−x)O30 (0 « x ≤ 2). Differen...
#1Hande Pekbelgin Karaoğlu (ITU: Istanbul Technical University)H-Index: 5
#2Armağan Atsay (ITU: Istanbul Technical University)H-Index: 6
Last. Ahmet Gül (ITU: Istanbul Technical University)H-Index: 44
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Abstract Two new phthalonitriles 1 and 2, extended with biphenylethynyl and diphenylacetylenyl, were synthesized through a combination of Corey-Fuchs and palladium-catalyzed Sonogashira coupling reactions. The structures of 1 and 2 were revealed through single-crystal X-ray analysis. Cyclotetramerization of these phthalonitriles led to the corresponding 1,4,8,11,15,18,22,25-octabutoxy-2,3,9,10,16,17,23,24-octakis(biphenyl) and (diphenylacetylenyl) phthalocyanines. The longer substituent, namely ...
2 CitationsSource
#1Zara Molphy (DCU: Dublin City University)H-Index: 7
#2Vickie McKee (DCU: Dublin City University)H-Index: 39
Last. Andrew Kellett (DCU: Dublin City University)H-Index: 22
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Herein, we report the synthesis, characterisation, X-ray crystallography, and oxidative DNA binding interactions of the copper artificial metallo-nuclease [Cu(DPQ)2(NO3)](NO3), where DPQ = dipyrido[3,2-f:2′,3′-h]quinoxaline. The cation [Cu(DPQ)2]2+ (Cu-DPQ), is a high-affinity binder of duplex DNA and presents an intercalative profile in topoisomerase unwinding and viscosity experiments. Artificial metallo-nuclease activity occurs in the absence of exogenous reductant but is greatly enhanced by ...
1 CitationsSource