Results 141 to 150 of about 1,121 (250)

Unveiling Ca9N4Te3: A New Motif in Alkaline‐Earth Metal Chalcogenide Nitrides: A Combined Experimental and Computational Study

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
The unique double monocapped trigonal cupola coordination polyhedra of Te(2) atoms inside the crystal structure of Ca9N4Te3. Green, moisture‐sensitive Ca9N4Te3 was obtained from Ca/Na flux at 1173 K as a by‐product of reddish‐brown Ca6N2Te3 and crystallizes in the trigonal space group R3¯$\overline{3}$ (No. 148, Z = 3).
Guowei Sun, Rainer Niewa
wiley   +1 more source

Crystal Structure and Eu2+ Luminescence of the Lithium Alkaline‐Earth Silicate Fluoride LiBa2SiO4F

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
With Li2BaSiO4F, a new lithium alkaline‐earth silicate fluoride could be synthesized via high‐temperature solid‐state reaction. Crystal structure and luminescence properties upon Eu2+ activation were investigated. A high‐temperature solid‐state synthesis in weld‐shut tantalum ampoules yielded a new alkaline‐earth silicate fluoride, LiBa2SiO4F.
Kilian M. Rießbeck   +5 more
wiley   +1 more source

Synthesis and Characterization of the Molybdenum Carbonyl‐Functionalized Zintl Ions [(η4‐Pb4)Mo(CO)3]4− and [Pb4{Mo(CO)3}3]6−

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
The reaction of the tetrahedral [Pb4]4− with Mo(CO)4(tmeda) yields two different Mo(CO)3‐functionalized clusters which can both be related to known clusters by the same substitution pattern following the isolobal principle. The crystal structures of [Na([2.2.2]crypt)]2Na2[(η4‐Pb4)Mo(CO)3] · 8.7NH3 and Na6[Pb4{Mo(CO)3}3] · 22NH3 are reported.
Michael Witzmann, Nikolaus Korber
wiley   +1 more source

Uncovering hidden bias in neutron diffraction residual strain measurements

open access: yesJournal of Applied Crystallography, EarlyView.
This work demonstrates that diffraction‐based residual strain calculations and uncertainty estimates depend on how grain populations are sub‐sampled, with important implications for interpreting residual stresses in heterogeneous materials with fine‐scale microstructure and strain gradients.When calculating residual strain via neutron or X‐ray ...
Cole Franz   +4 more
wiley   +1 more source

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