Browsing by Author "Tasiopoulos, Anastasios J."
Now showing items 21-40 of 150
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ChemInform Abstract: Filling the Gap Between the Quantum and Classical Worlds of Nanoscale Magnetism: Giant Molecular Aggregates Based on Paramagnetic 3d Metal Ions
Papatriantafyllopoulou, Constantina; Moushi, Eleni E.; Christou, George; Tasiopoulos, Anastasios J. (2016)
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Chloro(triphenylphosphine)gold(I) a forefront reagent in gold chemistry as apoptotic agent for cancer cells
Chrysouli, M. P.; Banti, C. N.; Kourkoumelis, N.; Panayiotou, N.; Markopoulos, G. S.; Tasiopoulos, Anastasios J.; Hadjikakou, S. K. (2018)The antiproliferative activity of the gold complex [Au(tpp)Cl] (1) (tpp=triphenyphosphine) against human breast adenocarcinoma cells (MCF-7) and normal human fetal lung fibroblast cells (MRC-5) was investigated. The compound ...
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Ciprofloxacin conjugated to diphenyltin(iv): a novel formulation with enhanced antimicrobial activity
Chrysouli, M. P.; Banti, Christina N.; Kourkoumelis, N.; Moushi, Eleni E.; Tasiopoulos, Anastasios J.; Douvalis, A.; Papachristodoulou, C.; Hatzidimitriou, Antonios G.; Bakas, T.; Hadjikakou, Sotiris K. (Royal Society of Chemistry, 2020-09-07)The metalloantibiotic of formula Ph2Sn(CIP)2 (CIPTIN) (HCIP = ciprofloxacin) was synthesized by reacting ciprofloxacin hydrochloride (HCIP·HCl) (an antibiotic in clinical use) with diphenyltin dichloride (Ph2SnCl2DPTD). ...
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Combining azide, carboxylate, and 2-pyridyloximate ligands in transition-metal chemistry: Ferromagnetic NiII 5clusters with a bowtie skeleton
Papatriantafyllopoulou, Constantina; Stamatatos, Theocharis C.; Wernsdorfer, W.; Teat, S. J.; Tasiopoulos, Anastasios J.; Escuer, Albert; Perlepes, Spyros P. (2010)The combined use of the anion of phenyl(2-pyridyl)ketone oxime (ppko-) and azides (N3 -) in nickel(II) carboxylate chemistry has afforded two new NiII 5clusters, [Ni5(O2CR′)2(N3)4(ppko)4(MeOH)4] [R′ = H (1), Me (2)]. The ...
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Copper(I)/(II) or silver(I) ions towards 2-mercaptopyrimidine: An exploration of a chemical variability with possible biological implication
Batsala, G. K.; Dokorou, Vaso N.; Kourkoumelis, Nikolaos; Manos, Manolis J.; Tasiopoulos, Anastasios J.; Mavromoustakos, Thomas M.; Simčič, M.; Golič-Grdadolnik, S.; Hadjikakou, Sotiris K. (2012)Direct reaction of copper(I) chloride with 2-mercaptopyrimidine (pmtH) in the presence of the triphenylphosphine (tpp) in 1:1:2 M ratio forms the mixed ligand Cu(I) complex with formula [CuCl(tpp) 2(pmtH)] (1). The dimeric ...
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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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Cyanate groups in higher oxidation state metal cluster chemistry: Mixed-valence (II/III) Mn16 and Mn18 clusters
Alexandropoulos, Dimitris I.; Moushi, Eleni E.; Papatriantafyllopoulou, Constantina; Beavers, Christine M.; Teat, Simon J.; Tasiopoulos, Anastasios J.; Christou, George; Stamatatos, Theocharis C. (2016)
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Cyanate groups in higher oxidation state metal cluster chemistry: Mixed-valence (II/III) Mn16 and Mn18 clusters
Alexandropoulos, Dimitris I.; Moushi, Eleni E.; Papatriantafyllopoulou, Constantina; Beavers, Christine M.; Teat, S. J.; Tasiopoulos, Anastasios J.; Christou, George; Stamatatos, Theocharis C. (2016)The employment of cyanato (OCN-) group in high oxidation state manganese cluster chemistry, in conjunction with carboxylate ions and the organic chelating/bridging ligand 2-(hydroxymethyl)pyridine (hmpH), is reported. The ...
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"Depolymerization" approach in Mn cluster chemistry: Controlled cleavage of a 1D coordination polymer consisting of Mn8 units in its constituent, discrete Mn8 complex
Stoumpos, Constantinos C.; Roubeau, O.; Aromí, Guillem; Tasiopoulos, Anastasios J.; Nastopoulos, Vassilios; Escuer, Albert; Perlepes, Spyros P. (2010)The cleavage of a 1D coordination polymer (MnII 2MnIII6)n containing recognizable octanuclear units to obtain the discrete MnIIMnIII6 cluster is reported. © 2009 American Chemical Society.
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Design and synthesis of new nanosized C 3-symmetrical tricarboxylic acids: Key elongated ligands for the preparation of highly porous MOFs
Markoulides, Marios Savva; Efthymiou, Constantinos G.; Tasiopoulos, Anastasios J.; Chronakis, Nikos (2015)The synthesis of two new C 3-symmetrical nanosized tricarboxylic acids bearing triphenylmethane cores and three imines linkages is presented. The new elongated tripods were designed to stabilise highly porous metal-organic ...
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Diol-type ligands as central 'players' in the chemistry of high-spin molecules and single-molecule magnets
Tasiopoulos, Anastasios J.; Perlepes, Spyros P. (2008)The combination of diol-type ligands with paramagnetic transition metal ions has led to the isolation of a host of new homometallic and heterometallic clusters, high-spin molecules and single molecule magnets ranging in ...
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Discrete and encapsulated molecular grids: Homometallic Mn15 and heterometallic Mn24Ni2 aggregates
Charalambous, Maria; Zartilas, Sotiris M.; Moushi, Eleni E.; Papatriantafyllopoulou, Constantina; Manos, Manolis J.; Stamatatos, Theocharis C.; Mukherjee, S.; Nastopoulos, Vassilios; Christou, George; Tasiopoulos, Anastasios J. (2014)Two molecular grid-like clusters are reported, one is a discrete [3 × 5] grid and the other a [3 × 4] grid within a Mn12Ni 2 loop. Both Mn24Ni2 and Mn15 aggregates display novel and aesthetically pleasing structures with ...
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Employment of methyl 2-pyridyl ketone oxime in manganese non-carboxylate chemistry: MnII2MnIV and MnII 2MnIII6 complexes
Stoumpos, Constantinos C.; Stamatatos, Theocharis C.; Sartzi, H.; Roubeau, O.; Tasiopoulos, Anastasios J.; Nastopoulos, Vassilios; Teat, S. J.; Christou, George; Perlepes, Spyros P. (2009)The employment of the anion of methyl 2-pyridyl ketone oxime (mpko -) as a tridentate chelating/bridging ligand in manganese chemistry is described. The inorganic anion (Br-, ClO4-) used in the reaction affects the identity ...
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Enhanced gas-sorption properties of a high surface area, ultramicroporous magnesium formate
Spanopoulos, Ioannis; Bratsos, Ioannis; Tampaxis, Christos; Kourtellaris, Andreas; Tasiopoulos, Anastasios J.; Charalambopoulou, Georgia Ch; Steriotis, Theodore A.; Trikalitis, Pantelis N. (2015)The direct solvothermal reaction of Mg(NO3)2·6H2O in dimethylformamide at 130 °C leads to the formation of highly crystalline α-[Mg3(O2CH)6] with an expanded unit cell. Successful pore activation was performed after heating ...
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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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Evidence for the formation of the (Ph3P)2Pt complex of 3,7-dimethyltricyclo[3.3.0.03,7]oct-1(5)-ene, the most highly pyramidalized alkene in a homologous series. Isolation and X-ray structure of the product of the ethanol addition to the complex
Theophanous, F. A.; Tasiopoulos, Anastasios J.; Nicolaïdes, Andrew N.; Zhou, X.; Johnson, W. T. G.; Borden, W. T. (2006)Attempts to isolate the (Ph3P)2R complex of the highly pyramidalized olefin 3,7-dimethyltricyclo[3.3.0.03,7]oct-1(5)- ene 2 by generation of 2 in the presence of (Ph3P)2RC 2H4, followed by crystallization of the complex ...
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A family of 3D coordination polymers composed of Mn19 magnetic units
Moushi, Eleni E.; Stamatatos, Theocharis C.; Wernsdorfer, W.; Nastopoulos, Vassilios; Christou, George; Tasiopoulos, Anastasios J. (2006)(Figure Presented) Singles networks: The use of 1,3-propanediol and of 2-methyl-1,3-propanediol in manganese carboxylate chemistry leads to two new 3D coordination polymers with an unprecedented Mn19 repeating unit. The ...
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Field-sweep-rate dependence of the coercive field of single-molecule magnets: A classical approach with applications to the quantum regime
Wernsdorfer, W.; Murugesu, M.; Tasiopoulos, Anastasios J.; Christou, George (2005)A method, based on the Néel-Brown model of thermally activated magnetization reversal of a magnetic single-domain particle, is proposed to study the field-sweep-rate dependence of the coercive field of single-molecule ...
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Filling the gap between the quantum and classical worlds of nanoscale magnetism: Giant molecular aggregates based on paramagnetic 3d metal ions
Papatriantafyllopoulou, Constantina; Moushi, Eleni E.; Christou, George; Tasiopoulos, Anastasios J. (2016)In this review, aspects of the syntheses, structures and magnetic properties of giant 3d and 3d/4f paramagnetic metal clusters in moderate oxidation states are discussed. The term "giant clusters" is used herein to denote ...
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Filling the gap between the quantum and classical worlds of nanoscale magnetism: giant molecular aggregates based on paramagnetic 3d metal ions[ONLINE]
Papatriantafyllopoulou, Constantina; Moushi, Eleni E.; Christou, George; Tasiopoulos, Anastasios J. (2016)