Raman Scattering in the Intermetallic Compound PtGa2

Die Subnitridometallate Ba23Na11(MN4)4 (M=V, Nb, Ta) kristallisieren in einem neuen Strukturtyp, in dem sowohl ionische ortho‐Nitridometallat‐Anionen als auch Strukturmotive aus einfachen (inter)metallischen Packungen zu finden sind: Na‐zentrierte [Na8]‐Würfel als Ausschnitte aus der bcc‐Struktur von elementarem Natrium und Na‐zentrierte [Ba10Na2]‐Ikosaeder, wie sie z. B. in Laves‐Phasen vorkommen. Einkristall‐ und Pulverröntgenstrukturanalyse unterstreichen in Kombination mit quantenchemischen Berechnungen der elektronischen Struktur und Raman‐Spektroskopie den Charakter der Subnitridometallate als “chemische Zwillinge”. Sie weisen unabhängige Strukturbausteine mit lokal überwiegend entweder ionischer oder metallischer Bindung in einer insgesamt metallischen Verbindung auf.

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Chemische Verzwilligung von Salz und Metall in den Subnitridometallaten Ba₂₃Na₁₁(MN₄)₄ mit M=V, Nb, Ta

Wörsching

Tambornino

Datz

et al. 2016

Angewandte Chemie

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Chemical Twinning of Salt and Metal in the Subnitridometalates Ba₂₃Na₁₁(MN₄)₄ with M=V, Nb, Ta

et al. 2016

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The subnitridometalates Ba23 Na11 (MN4 )4 (M=V, Nb, Ta) crystallize in a new structure type, which shows ionic ortho-nitridometalate anions and motifs from simple (inter)metallic packings: Na-centered [Na8 ] cubes as cutouts of the bcc structure of elemental Na and Na-centered [Ba10 Na2 ] icosahedra as found in Laves phases, for example. Single-crystal and powder X-ray diffraction studies in combination with quantum-chemical calculations of the electronic structure and Raman spectroscopy support the characterization of the subnitridometalates as "chemical twins". They consist of independent building units with locally prevalent ionic or metallic bonding in an overall metallic compound.

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Raman scattering in the intermetallic compounds Sm1−xGdxAl2 (x=0, 0.01 and 0.02)

Zhu

2003

Materials Research Bulletin

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Raman Scattering in the Intermetallic Compound PtGa2

Cited by 5 publications

References 14 publications

Chemische Verzwilligung von Salz und Metall in den Subnitridometallaten Ba₂₃Na₁₁(MN₄)₄ mit M=V, Nb, Ta

Chemische Verzwilligung von Salz und Metall in den Subnitridometallaten Ba₂₃Na₁₁(MN₄)₄ mit M=V, Nb, Ta

Chemical Twinning of Salt and Metal in the Subnitridometalates Ba₂₃Na₁₁(MN₄)₄ with M=V, Nb, Ta

Raman scattering in the intermetallic compounds Sm1−xGdxAl2 (x=0, 0.01 and 0.02)

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Raman Scattering in the Intermetallic Compound PtGa2

Cited by 5 publications

References 14 publications

Chemische Verzwilligung von Salz und Metall in den Subnitridometallaten Ba23Na11(MN4)4 mit M=V, Nb, Ta

Chemische Verzwilligung von Salz und Metall in den Subnitridometallaten Ba23Na11(MN4)4 mit M=V, Nb, Ta

Chemical Twinning of Salt and Metal in the Subnitridometalates Ba23Na11(MN4)4 with M=V, Nb, Ta

Raman scattering in the intermetallic compounds Sm1−xGdxAl2 (x=0, 0.01 and 0.02)

Contact Info

Product

Resources

About

Chemische Verzwilligung von Salz und Metall in den Subnitridometallaten Ba₂₃Na₁₁(MN₄)₄ mit M=V, Nb, Ta

Chemische Verzwilligung von Salz und Metall in den Subnitridometallaten Ba₂₃Na₁₁(MN₄)₄ mit M=V, Nb, Ta

Chemical Twinning of Salt and Metal in the Subnitridometalates Ba₂₃Na₁₁(MN₄)₄ with M=V, Nb, Ta