Browsing by Author "Raptopoulou, Catherine P."
Now showing items 1-18 of 18
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4-(Hydroxymethyl)pyridine and pyrimidine in manganese benzoate chemistry: Preparation and characterization of hexanuclear clusters featuring the { Mn4II Mn2III ( μ4 - O )2 }10 + core
Stamatatos, Theocharis C.; Foguet-Albiol, D.; Perlepes, Spyros P.; Raptopoulou, Catherine P.; Terzis, Aris; Patrickios, Costas S.; Christou, George; Tasiopoulos, Anastasios J. (2006)The use of 4-(hydroxymethyl)pyridine (4hmpH) and pyrimidine (pym) in manganese benzoate chemistry has been investigated. The reactions of 4hmpH and pym with Mn(O2CPh)2 · 2H2O in MeCN affords the complexes [Mn6O2(O2CPh)10(4hmpH) ...
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Alcoholysis/hydrolysis of 1,1′-carbonyldiimidazole as a means of preparing unprecedented, imidazole-containing one-dimensional coordination polymers of copper(II)
Stamatatos, Theocharis C.; Perlepes, Spyros P.; Raptopoulou, Catherine P.; Terzis, Aris; Patrickios, Costas S.; Tasiopoulos, Anastasios J.; Boudalis, Athanassios K. (2009)The use of 1,1′-carbonyldiimidazole, (im)2CO, for the synthesis of imidazolate (im-) and/or imidazole (Him)-containing copper(II) coordination polymers is described. The [Cu2(O 2CMe)4(H2O)2]/(im)2CO reaction system in EtOH ...
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Copper(II)/di-2-pyridyl ketone chemistry: A triangular cluster displaying antisymmetric exchange versus an 1D coordination polymer
Efthymiou, Constantinos G.; Raptopoulou, Catherine P.; Psycharis, Vassilis P.; Tasiopoulos, Anastasios J.; Escuer, Albert; Perlepes, Spyros P.; Papatriantafyllopoulou, Constantina (2013)The systematic study of the reaction system copper(II) perchlorate/di-2- pyridyl ketone, (py)2CO, provided access to the new trinuclear compound [Cu3{(py)2C(OMe)(O)}3(H 2O)](ClO4)3·MeOH·0.6H 2O (1·MeOH·0.6H2O), and the 1D ...
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Enneanuclear Ni(II) complexes from the use of the flexible ligand 2-pyridinealdoxime: The nature of the inorganic anion does not affect the chemical and structural identity of the cationic cluster
Stamatatos, Theocharis C.; Diamantopoulou, Eleanna; Tasiopoulos, Anastasios J.; Psycharis, Vassilis P.; Vicente, R.; Raptopoulou, Catherine P.; Nastopoulos, Vassilios; Escuer, Albert; Perlepes, Spyros P. (2006)The use of 2-pyridinealdoximate(-1) [(py)CHNO-] in nickel(II) chemistry has been further investigated. The synthetic investigation has led to two new salts of the very recently reported (in the form of its tetraperchlorate ...
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Hexanuclear zinc(II) carboxylate complexes from the use of pyridine-2,6-dimethanol: Synthetic, structural and photoluminescence studies
Katsoulakou, E.; Dermitzaki, Despina; Konidaris, K. F.; Moushi, Eleni E.; Raptopoulou, Catherine P.; Psycharis, Vassilis P.; Tasiopoulos, Anastasios J.; Bekiari, Vlasoula; Manessi-Zoupa, E.; Perlepes, Spyros P.; Stamatatos, Theocharis C. (2013)The employment of pyridine-2,6-dimethanol (pdmH2) in zinc(II) carboxylate chemistry is reported. The syntheses, crystal structures, and spectroscopic characterization are described for the structurally similar cluster ...
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Initial use of 1,1′-oxalyldiimidazole for inorganic synthesis: Decomposition of the ligand as a means to the preparation of an imidazole- and oxalate(-2)-containing, 1D copper(II) complex
Stamatatos, Theocharis C.; Perlepes, Spyros P.; Raptopoulou, Catherine P.; Psycharis, Vassilis P.; Patrickios, Costas S.; Tasiopoulos, Anastasios J.; Boudalis, Athanassios K. (2009)The use of 1,1′-oxalyldiimidazole, (im)COCO(im), for the synthesis of coordination complexes is explored for the first time. The [Cu2(O2CMe)4(H2O)2]/(im)COCO(im) reaction system in 96% EtOH yields the new, 1D coordination ...
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Investigation on uranyl interaction with bioactive ligands. Synthesis and structural studies of the uranyl complexes with glycine and N-(2-mercaptopropionyl)glycine
Keramidas, Anastasios D.; Rikkou, Maria P.; Drouza, Chryssoula; Raptopoulou, Catherine P.; Terzis, Aris; Pashalidis, Ioannis (2002)Three new uranium(VI) compounds have been prepared with glycine (Hgly), N-(2-mercaptopropionyl)glycine (Hmpg) and 2,2′-dithiobis(N-propionylglycine) (tpg). The crystal structure of [UO2(Hgly)2Cl2] has been solved, revealing ...
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Model Investigations for Vanadium-Protein Interactions. Synthetic, Structural, and Physical Studies of Vanadium(III) and Oxovanadium(IV/V) Complexes with Amidate Ligands
Keramidas, Anastasios D.; Papaioannou, Agelos B.; Vlahos, Antonis T.; Kabanos, Themistoklis A.; Bonas, George; Makriyannis, Alexandros M.; Raptopoulou, Catherine P.; Terzis, Aris (1996)3, C19H13N3O2SV, Mr = 398.34, monoclinic, P21/n, a = 12.1108(10) Å, b = 19.4439(18) Å, c = 7.2351(7) Å, β = 103.012(3)°, V = 1660.0(4) Å3, Z = 4, R = 0.0355, and Rw = 0.0376
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Model Studies of the Interaction of Vanadium(III) and Oxovanadium(IV/V) with the Carbonyl Amide Oxygen
Soulti, K. D.; Troganis, Anastassios N.; Papaioannou, Agelos B.; Kabanos, Themistoklis A.; Keramidas, Anastasios D.; Deligiannakis, Yiannis G.; Raptopoulou, Catherine P.; Terzis, Aris (1998)a = 12.668(5) Å, b = 8.084(3) Å, c = 17.222(6) Å, α = 108.148(12)°
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Models of oxovanadium(IV)-protein interactions: The first oxovanadium(IV) complexes with dipeptides
Tasiopoulos, Anastasios J.; Vlahos, Antonis T.; Keramidas, Anastasios D.; Kabanos, Themistoklis A.; Deligiannakis, Yiannis G.; Raptopoulou, Catherine P.; Terzis, Aris (1996)
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Monomeric compounds containing the cis-[V(=O)(OH)]+ core
Tolis, Evangelos I.; Manos, Manolis J.; Tasiopoulos, Anastasios J.; Raptopoulou, Catherine P.; Terzis, Aris; Sigalas, Michael P.; Deligiannakis, Yiannis G.; Kabanos, Themistoklis A. (2002)HYSCORE with a vanadium core: Examples of monomeric metal compounds containing the cis-[M(=O)(OH)]n+ unit, namely the VIVO2+ complexes [VIVO(OH)(bipy)2]BF4 (1
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Mononuclear and dinuclear manganese(II) complexes from the use of methyl(2-pyridyl)ketone oxime
Papatriantafyllopoulou, Constantina; Efthymiou, Constantinos G.; Nastopoulos, Vassilios; Raptopoulou, Catherine P.; Tasiopoulos, Anastasios J.; Perlepes, Spyros P. (2010)The reactions of methyl(2-pyridyl)ketone oxime, (py)C(Me)NOH, with manganese(II) sulfate monohydrate have been investigated. The reaction between equimolar quantities of MnSO 4 H 2 O and (py)C(Me)NOH in H 2 O lead to the ...
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Novel lipophilic amidate oxorhenium and oxotechnetium complexes as potential brain agents: Synthesis, characterization and biological evaluation
Papadopoulos, Minas S.; Nock, B.; Maina-Nock, Theodosia; Pirmettis, Ioannis C.; Raptopoulou, Catherine P.; Tasiopoulos, Anastasios J.; Troganis, Anastassios N.; Kabanos, Themistoklis A.; Terzis, Aris; Chiotellis, Efstratios (2001)Novel oxorhenium and oxotechnetium complexes based on the tetradentate 1-(2-hydroxybenzamido)-2-(pyridinecarboxamido)benzene, H3L, ligand have been synthesized and characterized herein. Thus, by reacting equimolar quantities ...
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p-Hydroquinone-metal compounds: Synthesis and crystal structure of two novel VV-p-hydroquinonate and VIV-p-semiquinonate species
Drouza, Chryssoula; Tolis, V.; Gramlich, V.; Raptopoulou, Catherine P.; Terzis, Aris; Sigalas, Michael P.; Kabanos, Themistoklis A.; Keramidas, Anastasios D. (2002)Reaction of the p-hydroquinone derivative H2Na4bicah·4H2O with either VIVOSO4·3H2O and NaVVO3 in equivalent quantities or with NaVVO3 yields the tetranuclear VIVO2+ macrocycle-semiquinonate compound Na6{(VIVO)4-(μ2-O) ...
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Synthetic analogues for oxovanadium(IV) - Glutathione interaction: An EPR, synthetic and structural study of oxovanadium(IV) compounds with sulfhydryl-containing pseudopeptides and dipeptides
Tasiopoulos, Anastasios J.; Troganis, Anastassios N.; Evangelou, Angelos M.; Raptopoulou, Catherine P.; Terzis, Aris; Deligiannakis, Yiannis G.; Kabanos, Themistoklis A. (1999)Valuable analogues of the VIVO2+ - glutathione complex have been synthesized and characterized. The reaction of [VIVO(CH3COO)2(phen)] (phen = 1,10-phenanthroline) with the sulfhydryl-containing pseudopeptides (scp) ...
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Triangular NiII2LnIII and Ni II2YIII complexes derived from di-2-pyridyl ketone: Synthesis, structures and magnetic properties
Georgopoulou, Anastasia N.; Efthymiou, Constantinos G.; Papatriantafyllopoulou, Constantina; Psycharis, Vassilis P.; Raptopoulou, Catherine P.; Manos, Manolis J.; Tasiopoulos, Anastasios J.; Escuer, Albert; Perlepes, Spyros P. (2011)The synthetic investigation of the NiII/M(NO3) 3·6H2O/di-2-pyridyl ketone [(py)2CO] tertiary reaction system in EtOH has yielded triangular Ni2M cationic complexes (M = lanthanide, Y). The reaction between Ln(NO3) 3·6H2O, ...
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Unexpected reduction of vanadium(IV) to vanadium(III) in the presence of the chelate ligands 2,2′-bipyridine (bpy) and 1,8-hydroxyquinoline (Hquin)
Manos, Manolis J.; Tasiopoulos, Anastasios J.; Raptopoulou, Catherine P.; Terzis, Aris; Derek Woollins, J.; Slawin, A. M. Z.; Keramidas, Anastasios D.; Kabanos, Themistoklis A. (2001)The structures, NMR spectra and electrochemical properties of the vanadium(III) compounds, cis-[VIIICl2-(acac)(bpy)] and [VIII(quin)3]·2CH3OH, formed from [VIVCl2(acac)2]·0.25CH2Cl 2 (Hacac = pentane-2,4-dione) and ...
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Use of the sulfato ligand in 3d-metal cluster chemistry: A family of hexanuclear nickel(II) complexes with 2-pyridyl-substituted oxime ligands
Papatriantafyllopoulou, Constantina; Aromí, Guillem; Tasiopoulos, Anastasios J.; Nastopoulos, Vassilios; Raptopoulou, Catherine P.; Teat, S. J.; Escuer, Albert; Perlepes, Spyros P. (2007)The initial use of 2-pyridyl-substituted oximes [(py)C(R)-NOH