Author: Yiannis Sanakis

0000000001304388

AUTHOR

Yiannis Sanakis

showing 14 related works from this author

Corrigendum to “A diferric complex from metal-assisted methanolysis of di-2,6-(2-pyridylcarbonyl)-pyridine: Structural, magnetic and spectroscopic (M…

2010

Corrigendum to ‘‘A diferric complex from metal-assisted methanolysis of di-2,6-(2-pyridylcarbonyl)-pyridine: Structural, magnetic and spectroscopic (Mossbauer, EPR) study” [Polyhedron 28 (2009) 15] Anastasia N. Georgopoulou , Rosa Adam, Yiannis Sanakis , Catherine P. Raptopoulou , Vassilis Psycharis , Rafael Ballesteros , Belen Abarca , Athanassios K. Boudalis a,* a Institute of Materials Science, NCSR ‘‘Demokritos”, 153 10 Aghia Paraskevi Attikis, Greece Departamento de Quimica Organica, Faculdad de Farmacia, Universidad de Valencia, Avda. Vicente Andres Estelles s/n, 46100 Burjassot (Valencia), Spain

biologyChemistrybiology.organism_classificationlaw.inventionInorganic ChemistryMetalCrystallographychemistry.chemical_compoundlawvisual_artMössbauer spectroscopyPyridineMaterials Chemistryvisual_art.visual_art_mediumPhysical and Theoretical ChemistryElectron paramagnetic resonanceValenciaPolyhedron

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Isolation, characterization, and computational studies of the novel [Mo3(mu3-Br)2(mu-Br)3Br6]2- cluster anion.

2010

The novel trimolybdenum cluster [Mo(3)(mu(3)-Br)(2)(mu-Br)(3)Br(6)](2-) (1, {Mo(3)}(9+), 9 d-electrons) has been isolated from the reaction of [Mo(CO)(6)] with 1,2-C(2)H(4)Br(2) in refluxing PhCl. The compound has been characterized in solution by electrospray ionization mass spectrometry (ESI-MS), UV-vis spectroscopy, cyclic voltammetry, and in the solid state by X-ray analysis (counter-cations: (n-Bu)(4)N(+) (1), Et(4)N(+), Et(3)BzN(+)), electron paramagnetic resonance (EPR), magnetic susceptibility measurements, and infrared spectroscopy. The least disordered (n-Bu)(4)N(+) salt crystallizes in the monoclinic space group C2/c, a = 20.077(2) A, b = 11.8638(11) A, c = 22.521(2) A, alpha = 9…

Models MolecularSpectrometry Mass Electrospray IonizationElectrospray ionizationMolecular ConformationInfrared spectroscopychemistry.chemical_elementElectronsCrystallography X-RayVibrationlaw.inventionCoordination complexInorganic ChemistryMagneticslawCoordination ComplexesPhysical and Theoretical ChemistryElectron paramagnetic resonanceSpectroscopychemistry.chemical_classificationMolybdenumBromineChemistrySpectrum AnalysisMagnetic susceptibilityCrystallographyQuantum TheoryMonoclinic crystal systemInorganic chemistry

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Iron(III) Clusters from Polydentate Schiff Base Ligands: Involvement of Non Heisenberg Interaction in [FeIII 3(µ2-OR)3(µ2-O2CPh)3]3+ Clusters

2018

chemistry.chemical_compoundSchiff baseDenticityChemistryPolymer chemistryGeneral EngineeringGeneral Earth and Planetary SciencesGeneral Environmental ScienceCurrent Inorganic Chemistry

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A Diferrous Single‐Molecule Magnet

2007

The diferrous complex [Fe2(acpypentO)(NCO)3] (1),(acpypentO– = the anion of 1,5-bis[2-pyridyl(1-ethylimino)]pentane-3-ol) was studied by spectroscopic (dual-mode X-band EPR and 57Fe-Mossbauer) and magnetic (AC magnetic susceptibility) techniques. Complex 1 (A. K. Boudalis et al., Inorg. Chem.2004, 43, 1574) was previously shown to exhibit an intramolecular ferromagnetic coupling with important single-ion anisotropies with marked differences in the single-ion electronic parameters of the two iron sites. In this contribution, additional studies are carried out to probe its dynamic magnetic properties. Mossbauer spectra recorded at liquid helium temperatures indicate slow paramagnetic relaxati…

ChemistryRelaxation (NMR)Analytical chemistryMagnetic susceptibilityMolecular physicslaw.inventionInorganic ChemistryParamagnetismFerromagnetismlawMagnetSingle-molecule magnetElectron paramagnetic resonanceGround stateEuropean Journal of Inorganic Chemistry

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Hexanuclear iron(III) salicylaldoximato complexes presenting the [Fe6(mu3-O)2(mu2-OR)2]12+ core: syntheses, crystal structures, and spectroscopic and…

2006

The use of salicylaldehyde oxime (H2salox) in iron(III) carboxylate chemistry has yielded two new hexanuclear compounds [Fe6(mu3-O)2(O2CPh)10(salox)2(L)2].xMeCN.yH2O [L = MeCONH2, x = 6, y = 0 (1); L = H2O, x = 2, y = 3 (2)]. Compound 1 crystallizes in the triclinic space group P with (at 25 degrees C) a = 13.210(8) A, b = 13.87(1) A, c = 17.04(1) A, alpha = 105.79(2) degrees , beta = 96.72(2) degrees , gamma = 116.69(2) degrees , V = 2578.17(2) A(3), and Z = 1. Compound 2 crystallizes in the monoclinic space group C2/c with (at 25 degrees C) a = 21.81(1) A, b = 17.93(1) A, c = 27.72(1) A, beta = 111.70(2) degrees , V = 10070(10) A(3), and Z = 4. Complexes 1 and 2 contain the [Fe6(mu3-O)2(m…

Magnetic Resonance SpectroscopyMolecular StructureChemistryLigandStereochemistryCrystal structureTriclinic crystal systemOximeChemistry InorganicCrystallography X-RayInorganic ChemistryCrystallographychemistry.chemical_compoundMagneticsSpectroscopy MossbauerSalicylaldehydeCarboxylatePhysical and Theoretical ChemistryAcetonitrileIron CompoundsMonoclinic crystal systemInorganic chemistry

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An "S"-shaped pentanuclear CuII cluster derived from the metal-assisted hydrolysis of pyCOpyCOpy: structural, magnetic and spectroscopic studies.

2007

Reaction of [Cu2(O2CMe)4(H2O)2] with 2,6-di-(2-pyridylcarbonyl)-pyridine (pyCOpyCOpy or dpcp) in MeCN–H2O 10 : 1, led to the pentanuclear copper(II) complex [Cu5(O2CMe)6{pyC(O)(OH)pyC(O)(OH)py}2] (1) which crystallizes in the triclinic P space group. The copper(II) atoms are arranged in an “S”-shaped configuration, and are bridged by the doubly deprotonated bis(gem-diol) form of the ligand, pyC(O)(OH)pyC(O)(OH)py2−. Magnetic susceptibility data indicate the interplay of both ferro- and antiferromagnetic intramolecular interactions stabilizing an S = 3/2 ground state. Fitting of the data according to a next-nearest-neighbour model {Ĥ = −[J1(Ŝ1Ŝ2 + Ŝ1′Ŝ2′) + J2(Ŝ2Ŝ3 + Ŝ3′Ŝ2′) + J3(Ŝ1Ŝ3 + Ŝ3′Ŝ…

Models MolecularStereochemistryPyridineschemistry.chemical_elementTriclinic crystal systemCrystallography X-Raylaw.inventionInorganic ChemistryMagneticsDeprotonationlawOrganometallic CompoundsElectron paramagnetic resonanceMolecular StructureLigandHydrolysisSpectrum AnalysisHydrogen BondingCopperMagnetic susceptibilityCrystallographychemistryModels ChemicalIntramolecular forceGround stateCopperDalton transactions (Cambridge, England : 2003)

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A Nonanuclear Iron(II) Single-Molecule Magnet

2004

chemistry.chemical_compoundCrystallographyChemistryInorganic chemistrySingle-molecule magnetGeneral ChemistryAzideGeneral MedicineCatalysisAngewandte Chemie

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A family of enneanuclear iron(II) single-molecule magnets.

2008

Complexes [Fe 9 (X) 2 -(02CMe)8{(2-py) 2 CO 2 } 4 ] (X - = OH (1), N 3 - (2), and NCO- (3)) have been prepared by a route previously employed for the synthesis of analogous Co 9 and Ni 9 complexes, involving hydroxide substitution by pseudohalides (N 3 - , NCO-). As indicated by DC magnetic susceptibility measurements, this substitution induced higher ferromagnetic couplings in complexes 2 and 3, leading to higher ground spin states compared to that of 1. Variable-field experiments have shown that the ground state is not well isolated from excited states, as a result of which it cannot be unambiguously determined. AC susceptometry has revealed out-of-phase signals, which suggests that these…

Spin statesChemistryOrganic ChemistryRelaxation (NMR)Analytical chemistryGeneral ChemistryMagnetic susceptibilityCatalysislaw.inventionCrystallographyMagnetizationFerromagnetismlawExcited stateGround stateElectron paramagnetic resonanceChemistry (Weinheim an der Bergstrasse, Germany)

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