0000000001302121

AUTHOR

Georg Meyer-eppler

showing 12 related works from this author

Self-assembly of metallosupramolecular rhombi from chiral concave 9,9'-spirobifluorene-derived bis(pyridine) ligands.

2014

Two new 9,9’-spirobifluorene-based bis(4-pyridines) were synthesised in enantiopure and one also in racemic form. These ligands act as concave templates and form metallosupramolecular [(dppp)2M2L2] rhombi with cis-protected [(dppp)Pd]2+ and [(dppp)Pt]2+ ions. The self-assembly process of the racemic ligand preferably occurs in a narcissistic self-recognising manner. Hence, a mixture of all three possible stereoisomers [(dppp)2M2{(R)-L}2](OTf)4, [(dppp)2M2{(S)-L}2](OTf)4, and [(dppp)2M2{(R)-L}{(S)-L}](OTf)4 was obtained in an approximate 1.5:1.5:1 ratio which corresponds to an amplification of the homochiral assemblies by a factor of approximately three as evidenced by NMR spectroscopy and m…

Stereochemistryconcave templatesSupramolecular chemistrymetal complexesFull Research Paperself-sortingsupramolecular chemistrylcsh:QD241-441lcsh:Organic chemistrysupramolekulaarinen kemialcsh:Scienceta1169LigandChemistryOrganic ChemistryNuclear magnetic resonance spectroscopyself-assemblyPyridine ligandCrystallographyChemistrySelf sortingEnantiopure drug99’-spirobifluorenelcsh:QSelf-assembly9’-spirobifluoreneSingle crystalBeilstein journal of organic chemistry
researchProduct

Chiral Self‐Sorting of trans ‐Chelating Chiral Ligands upon Formation of Pd II Complexes (Eur. J. Inorg. Chem. 15/2014)

2014

Inorganic ChemistrySelf sortingchemistryStereochemistryPolymer chemistrySupramolecular chemistrychemistry.chemical_elementChelationSelf-assemblyPlanar chiralityPalladiumEuropean Journal of Inorganic Chemistry
researchProduct

Enantiomerically pure trinuclear helicates via diastereoselective self-assembly and characterization of their redox chemistry.

2014

A tris(bipyridine) ligand 1 with two BINOL (BINOL = 2, 2′-dihydroxy-1, 1′-binaphthyl) groups has been prepared in two enantiomerically pure forms. This ligand undergoes completely diastereoselective self-assembly into D2-symmeteric double-stranded trinuclear helicates upon coordination to copper(I) and silver(I) ions and to D3-symmetric triple-stranded trinuclear helicates upon coordination to copper(II), zinc(II), and iron(II) ions as demonstrated by mass spectrometry, NMR and CD spectroscopy in combination with quantum chemical calculations and X-ray diffraction analysis. According to the calculations, the single diastereomers that are formed during the self-assembly process are strongly …

Circular dichroismStereochemistryLigandDiastereomerchemistry.chemical_elementGeneral ChemistryZincBiochemistryCopperRedoxCatalysisCrystallographyBipyridinechemistry.chemical_compoundColloid and Surface Chemistrychemistrytrinuclear helicates; diastereoselective self-assembly; X-ray diffraction; redox chemistrySelf-assemblyta116Journal of the American Chemical Society
researchProduct

Unexpected self-assembly of a homochiral metallosupramolecular M4L4 catenane

2014

Two enantiomerically pure 9,9'-spirobifluorene-based bis(pyridine) ligands 1 and 2 were prepared to study their self-assembly behavior upon coordination to cis-protected palladium(II) ions. Whereas the sterically more demanding ligand, 2, gave rise to the expected dinuclear metallosupramolecular M2L2 rhombi, the sterically less demanding ligand, 1, acts as a template to give rise to a homochiral metallosupramolecular M4L4 catenane.

Steric effectsLigandStereochemistryOrganic ChemistryCatenanechemistry.chemical_elementGeneral ChemistryCatalysischemistry.chemical_compoundchemistryPyridinePolymer chemistrySelf-assemblyta116PalladiumChemistry: A European Journal
researchProduct

Chiral Self-Sorting of trans-Chelating Chiral Ligands upon Formation of PdII Complexes

2014

Invited for the cover of this issue is the group of Arne Lutzen at the University of Bonn, Germany. The cover image shows two dissymmetric bis(3-pyridyl) ligands based on a planar chiral pseudo-ortho-disubstituted [2.2]paracyclophane scaffold. Upon forming a mononuclear [ML2] complex with palladium(II) ions, these ligands act in a trans-chelating manner and undergo complete chiral self-sorting.

Inorganic ChemistrySelf sortingchemistryStereochemistrySupramolecular chemistrychemistry.chemical_elementChelationSelf-assemblyta116PalladiumEuropean Journal of Inorganic Chemistry
researchProduct

CCDC 986176: Experimental Crystal Structure Determination

2014

Related Article: Georg Meyer-Eppler, Filip Topić, Gregor Schnakenburg, Kari Rissanen, Arne Lützen|2014|Eur.J.Inorg.Chem.||2495|doi:10.1002/ejic.201402057

Space GroupCrystallographyCrystal Systembis(22'-(tricyclo[8.2.2.247]hexadeca-1(12)46101315-hexaene-511-diyldiethyne-21-diyl)bispyridine)-palladium(ii) bis(tetrafluoroborate) chloroform solvateCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 986175: Experimental Crystal Structure Determination

2014

Related Article: Georg Meyer-Eppler, Filip Topić, Gregor Schnakenburg, Kari Rissanen, Arne Lützen|2014|Eur.J.Inorg.Chem.||2495|doi:10.1002/ejic.201402057

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters22'-(tricyclo[8.2.2.247]hexadeca-1(12)46101315-hexaene-511-diyldiethyne-21-diyl)dipyridineExperimental 3D Coordinates
researchProduct

CCDC 986177: Experimental Crystal Structure Determination

2014

Related Article: Georg Meyer-Eppler, Filip Topić, Gregor Schnakenburg, Kari Rissanen, Arne Lützen|2014|Eur.J.Inorg.Chem.||2495|doi:10.1002/ejic.201402057

Space GroupCrystallographybis(22'-(tricyclo[8.2.2.2^47^]hexadeca-1(12)46101315-hexaene-511-diyldiethyne-21-diyl)bispyridine)-palladium(ii) bis(tetrafluoroborate) dichloromethane solvate hemihydrateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1003004: Experimental Crystal Structure Determination

2014

Related Article: Christoph Gütz , Rainer Hovorka , Niklas Struch , Jens Bunzen , Georg Meyer-Eppler , Zheng-Wang Qu , Stefan Grimme , Filip Topić, Kari Rissanen, Mario Cetina, Marianne Engeser, Arne Lützen|2014|J.Am.Chem.Soc.|136|11830|doi:10.1021/ja506327c

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameterstris(mu-55'-bis((3'-(22'-bipyridin-5-ylethynyl)-22'-bis(methoxymethoxy)-11'-binaphthalen-3-yl)ethynyl)-22'-bipyridine)-tri-copper hexakis(tetrafluoroborate) acetonitrile tetrahydropyran solvateExperimental 3D Coordinates
researchProduct

CCDC 999739: Experimental Crystal Structure Determination

2014

Related Article: Rainer Hovorka, Georg Meyer-Eppler, Torsten Piehler, Sophie Hytteballe, Marianne Engeser, Filip Topić, Kari Rissanen, Arne Lützen|2014|Chem.-Eur.J.|20|13253|doi:10.1002/chem.201403414

Space GroupCrystallographybis(mu~2~-(R)-22'-(4-Pyridylethynyl)-99'-spirobi[fluorene])-bis(13-bis(diphenylphosphino)propane)-di-palladium(ii) tetrakis(trifluoromethanesulfonate) ethyl acetate unknown solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 986178: Experimental Crystal Structure Determination

2014

Related Article: Georg Meyer-Eppler, Filip Topić, Gregor Schnakenburg, Kari Rissanen, Arne Lützen|2014|Eur.J.Inorg.Chem.||2495|doi:10.1002/ejic.201402057

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersbis(22'-(tricyclo[8.2.2.2^47^]hexadeca-1(12)46101315-hexaene-511-diyldiethyne-21-diyl)bis(4-methylpyridine))-palladium(ii) bis(22'-(tricyclo[8.2.2.2^47^]hexadeca-1(12)46101315-hexaene-511-diyldiethyne-21-diyl)bispyridine)-palladium(ii) tetrakis(tetrafluoroborate)Experimental 3D Coordinates
researchProduct

CCDC 971933: Experimental Crystal Structure Determination

2015

Related Article: Rainer Hovorka, Sophie Hytteballe, Torsten Piehler, Georg Meyer-Eppler, Filip Topić, Kari Rissanen, Marianne Engeser, Arne Lützen|2014|Beilstein J.Org.Chem.|10|432|doi:10.3762/bjoc.10.40

Space GroupCrystallographyCrystal SystemCrystal Structurebis(mu-44'-(99'-spirobi[fluorene]-22'-diyl)bispyridine)-bis(13-bis(diphenylphosphino)propane)-di-palladium(ii) tetrakis(trifluoromethanesulfonate) ethyl acetate unknown solvateCell ParametersExperimental 3D Coordinates
researchProduct