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The Intermetallic Type‐I Clathrate Na 8 Zn 4 Ge 42
Author(s) -
Stegmaier Saskia,
Hlukhyy Viktor,
Fässler Thomas F.
Publication year - 2020
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201900253
Subject(s) - intermetallic , clathrate hydrate , crystallography , crystal structure , zintl phase , group (periodic table) , chemistry , structure type , single crystal , materials science , hydrate , metallurgy , organic chemistry , alloy
The new intermetallic type‐I clathrate Na 8 Zn 4 Ge 42 was obtained by direct reaction of the elements, and its crystal structure was determined by means of single‐crystal X‐ray diffraction methods. The structure is described in space group Pm 3 n (no. 223) with a = 10.6982(1) Å. A mixed Zn/Ge occupancy is found for one of the network sites (6 c ). Na 8 Zn 4 Ge 42 represents an air‐stable electron‐precise Zintl phase with exclusively Na cations located in the cavities of a polyanionic host network of four‐connected Zn and Ge atoms.