Results 51 to 60 of about 275 (172)

“Überschuss”‐Elektronen in LuGe

open access: yesAngewandte Chemie, Volume 133, Issue 12, Page 6531-6535, March 15, 2021., 2021
Das Germaniummonogermanid wird durch Hochdruck‐ und Hochtemperatur‐Synthese dargestellt. Die chemische Bindung in LuGe wird als kovalent gebundene Zickzackketten von Ge‐Atomen und Lu4‐Polykationen beschrieben, die mit Hilfe „überschüssiger“ Elektronen im Sinne der Zintl‐Bilanz Lu3+(2b)Ge2− × 1 e− gebildet werden.
Riccardo Freccero   +7 more
wiley   +1 more source

Na3SO4H – ein erster Vertreter der Materialklasse der Sulfathydride

open access: yesAngewandte Chemie, Volume 133, Issue 11, Page 5747-5751, March 8, 2021., 2021
Mittels exakter Reaktionskontrolle konnte ein neuartiges Sulfathydrid – der erste Vertreter einer neuen Materialklasse – hergestellt werden. Eine Reihe an verschiedenen Methoden, wie Neutronen‐ und Röntgenbeugung, Festkörper‐NMR, Schwingungsspektroskope und Dichtefunktionalberechnungen, wird angewendet.
Alexander Mutschke   +6 more
wiley   +1 more source

Die ersten zwei Bismutborosulfate – eines davon enthält Oxonium und ein tektosilicatanaloges Anion

open access: yesAngewandte Chemie, Volume 133, Issue 3, Page 1525-1529, January 18, 2021., 2021
Das erste tektosilicatanaloge Oxoniumbismutborosulfat wurde durch Reaktion von Oleum mit Bismutnitrat und Borsäure erhalten; es zersetzt sich zum ersten Bismutborosulfat, einer ringsilicatanalogen Verbindung, und liefert interessante Einblicke in die Chemie und die Kristallstrukturen dieser weiterhin rasch wachsenden Materialklasse.
Matthias Hämmer   +2 more
wiley   +1 more source

The Stacking Faulted Nature of the Narrow Gap Semiconductor Sc$_{2}$Si$_{2}$Te$_{6}$ [PDF]

open access: yes, 2023
Crystals of Sc$_{2}$Si$_{2}$Te$_{6}$ have been grown and its crystal, micro- and electronic structures were investigated. The layered character of the title compound exhibits stacking faults that impede a full structural characterization by single ...
Bette, Sebastian   +7 more
core   +2 more sources

Synthesis and Crystal Structure of Nb0.84N [PDF]

open access: yes, 2011
A new compound of the composition Nb0.84N was prepared by ammonolysis of NbO2 at 1100 °C. The crystal structure refinement was performed by the Rietveld method using X-ray and neutron powder diffraction data.
Buchsteiner, Alexandra   +3 more
core   +2 more sources

catena-Poly[[bis­[1-(2-hydroxy­ethyl)-1H-tetra­zole-κN 4]copper(II)]-di-μ-chlorido]: a powder study [PDF]

open access: yes, 2008
The crystal structure of the title polymeric complex, [CuCl2(C3H6N4O)2]n, was obtained by the Rietveld refinement from laboratory X-ray powder diffraction data collected at room temperature.
Alexander S. Lyakhov   +15 more
core   +3 more sources

catena-Poly[cobalt(II)-di-μ-chlorido-κ4 Cl:Cl-μ-1,5-dimethyl-1H-tetra­zole-κ2 N 3:N 4]: an X-ray powder investigation [PDF]

open access: yes, 2009
The asymmetric unit of the title compound, [CoCl2(C3H6N4)]n, contains two Co atoms, both lying on inversion centres, two Cl atoms and one 1,5-dimethyl­tetra­zole ligand.
Alexander S. Lyakhov   +10 more
core   +3 more sources

NaSr(AsO4)(H2O)9: the (Sr,As) analogue of nabaphite and nastrophite [PDF]

open access: yes, 2009
The crystal structure of the title compound, sodium strontium orthoarsenate(V) nona­hydrate, is isotypic with NaSr(PO4)(H2O)9 and the minerals nabaphite [NaBa(PO4)(H2O)9] and nastrophite [Na(Sr,Ba)(PO4)(H2O)9].
Weil, Matthias
core   +4 more sources

Isotypic MnII and FeII binuclear complexes of the ligand 5,6-bis(pyridin-2-yl)-pyrazine-2,3-dicarboxylic acid

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2016
The title isotypic complexes, bis[μ-5,6-bis(pyridin-2-yl)pyrazine-2,3-dicarboxylato]-κ4N1,O2,N6:O3;κ4O3:N1,O2,N6-bis[diaquamanganese(II)] tetrahydrate, [Mn2(C16H8N4O4)2(H2O)4]·4H2O, (I), and bis[μ-5,6-bis(pyridin-2-yl)pyrazine-2,3-dicarboxylato]-κ4N1,O2 ...
Monserrat Alfonso, Helen Stoeckli-Evans
doaj   +1 more source

A contribution to the mineralogy of the Larderello geothermal field. X-ray crystallographic studies on borate minerals "bechilite" and "lagonite" and crystal structure determination of ginorite [PDF]

open access: yes, 2016
This work reports the results of mineralogical studies on some borate minerals from the Larderello geothermal field. XRD patterns of “bechilite” and “lagonite” confirmed they actually are respectively admixtures of sassolite and ammonioborite, and of ...
Armienti, Pietro   +3 more
core   +1 more source

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