0000000001311227

AUTHOR

Peter Lönnecke

showing 6 related works from this author

Polynuclear copper(II) complexes with hexadentate Schiff base directed by the counter ion. Syntheses, crystal structures and magnetic properties

2018

Abstract Four new complexes, [Cu 9 L 6 ( µ 3 -ClO 4 ) 2 ](ClO 4 ) 4 ·4CHCl 3 1 , [Cu 3 L 2 (H 2 O) 2 ](ClO 4 ) 2 ·3H 2 O 2 , [Cu 6 L 4 (N 3 ) 2 ](ClO 4 ) 2 3 and [Cu 2 L(CH 3 COO) 2 ] 4 , where H 2 L stands for the Schiff base N , N ′-bis[(2-hydroxybenzilideneamino)-propyl]-piperazine, were obtained and structurally characterized. Compounds 1 , 2 and 3 contain the Cu 3 L 2 2+ entities in which L 2− acts in an unsymmetrical mode with N 3 O donor set wrapped around marginal copper(II) and with the remained NO sets bound to the central copper ion. The marginal copper(II) ions are in distorted square pyramidal environment, whereas that of the central one is square planar. In 1 , the peripheral …

Schiff base010405 organic chemistryChemistryLigandStereochemistryMetal ions in aqueous solutionchemistry.chemical_elementCrystal structure010402 general chemistry01 natural sciencesCopperSquare pyramidal molecular geometry0104 chemical sciencesInorganic ChemistryCrystallographychemistry.chemical_compoundPerchlorateMaterials ChemistryMoleculePhysical and Theoretical ChemistryInorganica Chimica Acta
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Crystal structure of 3-(tri-phenyl-phosphoranyl-idene)-2,5-di-hydro-furan-2,5-dione tetra-hydro-furan monosolvate.

2018

The title pseudo-polymorph of 3-(triphenylphosphoranylidene)-2,5-dihydrofuran-2,5-dione crystallizes with a tetrahydrofuran solvent molecule, viz. C22H17O3P·C4H8O. The succinic anhydride ring is approximately planar (r.m.s. deviation = 0.032 Å). The tetrahydrofuran molecule is disordered over two orientations about a pseudo-twofold axis with refined occupancy ratio 0.718 (4):0.282 (4). In the crystal, C—H...O hydrogen bonds link molecules of the dihydrofuran-2,5-dione derivative into chains parallel to the b axis and arranged into layers stacked along [100] alternating with hydrogen-bonded tetrahydrofuran layers.

crystal structure02 engineering and technologyCrystal structure010403 inorganic & nuclear chemistryRing (chemistry)01 natural sciencesCrystalchemistry.chemical_compoundFuranpseudopolymorphGeneral Materials ScienceCrystallographybiologytetrahydrofuran solvateHydrogen bondSuccinic anhydrideGeneral Chemistry021001 nanoscience & nanotechnologyCondensed Matter Physicsbiology.organism_classification0104 chemical sciencesCrystallographychemistryQD901-999Tetra0210 nano-technologyylidDerivative (chemistry)Acta crystallographica. Section E, Crystallographic communications
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CCDC 1558560: Experimental Crystal Structure Determination

2017

Related Article: Ildiko Buta, Liliana Cseh, Carmen Cretu, Diana Aparaschivei, Catalin Maxim, Peter Lönnecke, Evamarie Hey-Hawkins, Nicolae Stanica, Eva Ohler, Eva Rentschler, Marius Andruh, Otilia Costisor|2017|Inorg.Chim.Acta|475|133|doi:10.1016/j.ica.2017.10.024

Space GroupCrystallographyCrystal SystemCrystal Structurecatena-[bis(mu-22'-{piperazine-14-diylbis[(propane-31-diyl)azanylylidenemethylylidene]}diphenolato)-bis(mu-perchlorato)-nona-copper(ii) tetrakis(perchlorate) chloroform solvate]Cell ParametersExperimental 3D Coordinates
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CCDC 1558856: Experimental Crystal Structure Determination

2017

Related Article: Ildiko Buta, Liliana Cseh, Carmen Cretu, Diana Aparaschivei, Catalin Maxim, Peter Lönnecke, Evamarie Hey-Hawkins, Nicolae Stanica, Eva Ohler, Eva Rentschler, Marius Andruh, Otilia Costisor|2017|Inorg.Chim.Acta|475|133|doi:10.1016/j.ica.2017.10.024

Space GroupCrystallographyCrystal SystemCrystal Structurebis(acetato)-{mu-[2-{[(3-{4-[3-({[2-(hydroxy)phenyl]methylidene}amino)propyl]piperazin-1-yl}propyl)imino]methyl}phenolato]}-di-copper(ii)Cell ParametersExperimental 3D Coordinates
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CCDC 1558855: Experimental Crystal Structure Determination

2017

Related Article: Ildiko Buta, Liliana Cseh, Carmen Cretu, Diana Aparaschivei, Catalin Maxim, Peter Lönnecke, Evamarie Hey-Hawkins, Nicolae Stanica, Eva Ohler, Eva Rentschler, Marius Andruh, Otilia Costisor|2017|Inorg.Chim.Acta|475|133|doi:10.1016/j.ica.2017.10.024

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinatestetrakis(mu-22'-{piperazine-14-diylbis[(propane-31-diyl)azanylylidenemethylylidene]}diphenolato)-bis(mu-azido)-hexa-copper(ii) bis(perchlorate)
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CCDC 1558561: Experimental Crystal Structure Determination

2017

Related Article: Ildiko Buta, Liliana Cseh, Carmen Cretu, Diana Aparaschivei, Catalin Maxim, Peter Lönnecke, Evamarie Hey-Hawkins, Nicolae Stanica, Eva Ohler, Eva Rentschler, Marius Andruh, Otilia Costisor|2017|Inorg.Chim.Acta|475|133|doi:10.1016/j.ica.2017.10.024

Space GroupCrystallographyCrystal SystemCrystal Structurebis(mu-22'-{piperazine-14-diylbis[(propane-31-diyl)azanylylidenemethylylidene]}diphenolato)-diaqua-tri-copper(ii) bis(perchlorate) trihydrateCell ParametersExperimental 3D Coordinates
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