0000000001301548

AUTHOR

Georgia A. Zissimou

showing 11 related works from this author

Polymorphism in a π stacked Blatter radical: structures and magnetic properties of 3-(phenyl)-1-(pyrid-2-yl)-1,4-dihydrobenzo[ e ][1,2,4]triazin-4-yl

2020

International audience; 3-(Phenyl)-1-(pyrid-2-yl)-1,4-dihydrobenzo[e][1,2,4]triazin-4-yl (2) demonstrates the first example of polymorphism in the family of Blatter radicals. Two polymorphs, 2α and 2β, have been identified and characterized by single crystal X-ray diffractometry and magnetic susceptibility measurements to investigate their magnetism–structure correlations. Both polymorphs form one-dimensional (1D) π stacks of evenly spaced radicals with distinctly different π–π overlap modes. Within the 1D π stacks, radicals are located at evenly interplanar distances, 3.461 Å for 2α and 3.430 Å for 2β. Magnetic susceptibility studies indicate that both polymorphs exhibit antiferromagnetic …

Phase transitionmagneettiset ominaisuudetMaterials scienceSpins010405 organic chemistry[CHIM.ORGA]Chemical Sciences/Organic chemistryRadicalGeneral Chemistryvapaat radikaalitkiteet010402 general chemistryCondensed Matter Physics01 natural sciencesMagnetic susceptibility0104 chemical sciencesCrystallographyPolymorphism (materials science)[CHIM.CRIS]Chemical Sciences/CristallographyAntiferromagnetismGeneral Materials ScienceSingle crystalQuantumorgaaniset yhdisteet
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Coordination Complexes of a Neutral 1,2,4-Benzotriazinyl Radical Ligand: Synthesis, Molecular and Electronic Structures, andMagnetic Properties

2015

A series of d-block metal complexes of the recently reported coordinating neutral radical ligand 1-phenyl-3-(pyrid-2-yl)-1,4-dihydro-1,2,4-benzotriazin-4-yl (1) was synthesized. The investigated systems contain the benzotriazinyl radical 1 coordinated to a divalent metal cation, MnII, FeII, CoII, or NiII, with 1,1,1,5,5,5-hexafluoroacetylacetonato (hfac) as the auxiliary ligand of choice. The synthesized complexes were fully characterized by single-crystal X-ray diffraction, magnetic susceptibility measurements, and electronic structure calculations. The complexes [Mn(1)(hfac)2] and [Fe(1)(hfac)2] displayed antiferromagnetic coupling between the unpaired electrons of the ligand and the meta…

Magnetic susceptibility measurementsAntiferromagnetic couplingIron compoundsLigands01 natural sciencesNickelheterosyklitMetal ionsta116Cobalt compoundsChelationChemistryMetal–radical interactionsMagnetismSingle crystal x-ray diffractionRadicals[CHIM.MATE]Chemical Sciences/Material chemistrymetal-radical interactionsradicalsexchange interactionsChemistrykoordinaatiokemiaUnpaired electronPositive ionsMetalsSynthesis (chemical)visual_artradikaalitvisual_art.visual_art_mediumElectronic structureCoordinating propertiesmagneettiset ominaisuudetX ray diffractionRadicalInorganic chemistryRadical interactionsElectronic structureHeterocycles010402 general chemistryCatalysisMagnetic susceptibilityMetalElectronic structure calculationsMetal complexesMagnetic properties[CHIM.COOR]Chemical Sciences/Coordination chemistrymetalli-radikaali -vuorovaikutuksetManganeseheterocycles010405 organic chemistryLigandCrystal structureOrganic ChemistryGeneral ChemistryMagnetic susceptibility0104 chemical sciencesCrystallographyOctahedronFerromagnetismExchange interactionscoordination chemistrySingle crystalsmagnetic propertiesCoordination reactions
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CCDC 1057508: Experimental Crystal Structure Determination

2015

Related Article: Ian S. Morgan, Akseli Mansikkamäki, Georgia A. Zissimou, Panayiotis A. Koutentis, Mathieu Rouzières, Rodolphe Clérac and Heikki M. Tuononen|2015|Chem.-Eur.J.|21|15843|doi:10.1002/chem.201501343

Space GroupCrystallographyCrystal SystemCrystal Structurebis(111555-Hexafluoroacetylacetonato-OO')-(1-phenyl-3-(pyridin-2-yl)-124-benzotriazin-4(1H)-yl radical)-cobalt(ii)Cell ParametersExperimental 3D Coordinates
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CCDC 1057512: Experimental Crystal Structure Determination

2015

Related Article: Ian S. Morgan, Akseli Mansikkamäki, Georgia A. Zissimou, Panayiotis A. Koutentis, Mathieu Rouzières, Rodolphe Clérac and Heikki M. Tuononen|2015|Chem.-Eur.J.|21|15843|doi:10.1002/chem.201501343

Space GroupCrystallographyCrystal System1-Phenyl-3-(pyridin-2-yl)-14-dihydro-124-benzotriazineCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1955680: Experimental Crystal Structure Determination

2020

Related Article: Christos P. Constantinides, Daniel B. Lawson, Georgia A. Zissimou, Andrey A. Berezin, Aaron Mailman, Maria Manoli, Andreas Kourtellaris, Gregory M. Leitus, Rodolphe Clérac, Heikki M. Tuononen, Panayiotis A. Koutentis|2020|CrystEngComm|22|5453|doi:10.1039/D0CE00789G

Space GroupCrystallography3-phenyl-1-(pyridin-2-yl)-14-dihydro-124-benzotriazine radicalCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1057511: Experimental Crystal Structure Determination

2015

Related Article: Ian S. Morgan, Akseli Mansikkamäki, Georgia A. Zissimou, Panayiotis A. Koutentis, Mathieu Rouzières, Rodolphe Clérac and Heikki M. Tuononen|2015|Chem.-Eur.J.|21|15843|doi:10.1002/chem.201501343

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersNN'-Diphenylpyridine-2-carbohydrazonamideExperimental 3D Coordinates
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CCDC 1057510: Experimental Crystal Structure Determination

2015

Related Article: Ian S. Morgan, Akseli Mansikkamäki, Georgia A. Zissimou, Panayiotis A. Koutentis, Mathieu Rouzières, Rodolphe Clérac and Heikki M. Tuononen|2015|Chem.-Eur.J.|21|15843|doi:10.1002/chem.201501343

Space GroupCrystallographyCrystal SystemCrystal StructureN-Phenylpyridine-2-carbothioamideCell ParametersExperimental 3D Coordinates
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CCDC 1057507: Experimental Crystal Structure Determination

2015

Related Article: Ian S. Morgan, Akseli Mansikkamäki, Georgia A. Zissimou, Panayiotis A. Koutentis, Mathieu Rouzières, Rodolphe Clérac and Heikki M. Tuononen|2015|Chem.-Eur.J.|21|15843|doi:10.1002/chem.201501343

bis(111555-Hexafluoroacetylacetonato-OO')-(1-phenyl-3-(pyridin-2-yl)-124-benzotriazin-4(1H)-yl radical)-iron(ii)Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1955684: Experimental Crystal Structure Determination

2020

Related Article: Christos P. Constantinides, Daniel B. Lawson, Georgia A. Zissimou, Andrey A. Berezin, Aaron Mailman, Maria Manoli, Andreas Kourtellaris, Gregory M. Leitus, Rodolphe Clérac, Heikki M. Tuononen, Panayiotis A. Koutentis|2020|CrystEngComm|22|5453|doi:10.1039/D0CE00789G

Space GroupCrystallography3-phenyl-1-(pyridin-2-yl)-14-dihydro-124-benzotriazine radicalCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1057506: Experimental Crystal Structure Determination

2015

Related Article: Ian S. Morgan, Akseli Mansikkamäki, Georgia A. Zissimou, Panayiotis A. Koutentis, Mathieu Rouzières, Rodolphe Clérac and Heikki M. Tuononen|2015|Chem.-Eur.J.|21|15843|doi:10.1002/chem.201501343

bis(111555-Hexafluoroacetylacetonato-OO')-(1-phenyl-3-(pyridin-2-yl)-124-benzotriazin-4(1H)-yl radical)-manganese(ii)Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1057509: Experimental Crystal Structure Determination

2015

Related Article: Ian S. Morgan, Akseli Mansikkamäki, Georgia A. Zissimou, Panayiotis A. Koutentis, Mathieu Rouzières, Rodolphe Clérac and Heikki M. Tuononen|2015|Chem.-Eur.J.|21|15843|doi:10.1002/chem.201501343

Space GroupCrystallographyCrystal Systembis(111555-Hexafluoroacetylacetonato-OO')-(1-phenyl-3-(pyridin-2-yl)-124-benzotriazin-4(1H)-yl radical)-nickel(ii)Crystal StructureCell ParametersExperimental 3D Coordinates
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