Zeitschrift für Anorganische und Allgemeine Chemie
Zeitschrift für Anorganische und Allgemeine Chemie
5 years ago

Synthesis, Characterization, and Chemical Bonding Analysis of the Lithium Alkaline-earth Metal Gallide Nitrides Li2(Ca3N)2[Ga4] and Li2(Sr3N)2[Ga4]

Synthesis, Characterization, and Chemical Bonding Analysis of the Lithium Alkaline-earth Metal Gallide Nitrides Li2(Ca3N)2[Ga4] and Li2(Sr3N)2[Ga4]
Dominik Stoiber, Rainer Niewa, Alim Ormeci, Peter Höhn, Alexander Ovchinnikov, Matej Bobnar, Manisha Pathak
Large single crystals of Li2(Ca3N)2[Ga4] and Li2(Sr3N)2[Ga4] up to several mm in size were grown from mixtures of the respective elements and binary alkaline-earth metal nitrides in reactive lithium melts employing a modified high-temperature centrifugation-aided filtration (HTCAF) technique. The main structural features of these isotypic phases are stella quadrangula building units [Ga4]Li4/2 and octahedra (Nae6/2), which form two independent interpenetrating networks. The phases crystallize in the η-carbide structure and represent diamagnetic small bandgap semiconductors. Real-space chemical bonding analysis indicates predominantly ionic bonding.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/zaac.201700296

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