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Cover Feature: Type‐II Clathrate Na 24‐ δ Ge 136 from a Redox‐Preparation Route (Chem. Eur. J. 50/2021)
Author(s) -
Feng XianJuan,
Bobnar Matej,
Lerch Swantje,
Biller Harry,
Schmidt Marcus,
Baitinger Michael,
Strassner Thomas,
Grin Yuri,
Böhme Bodo
Publication year - 2021
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202102874
Subject(s) - metastability , crystallography , clathrate hydrate , atom (system on chip) , chemistry , type (biology) , raman spectroscopy , physics , hydrate , computer science , organic chemistry , ecology , optics , biology , embedded system
In the metastable type‐II clathrate Na 24– δ Ge 136 , a Ge framework forms 20‐ and 28‐atom cages (drawn with gray and bluish faces) hosting the Na guest atoms. The stopwatch hands give the actual number of Na atoms found per unit cell. In type‐II clathrates, the guest atoms arrange with hierarchical relation to the C15 Laves phase and the oxygen partial structure of β‐Cristobalite. The latter is shown by white lines between Na atoms, turning red where only this partial structure is drawn. More information can be found in the Full Paper by B. Böhme et al. (DOI: 10.1002/chem.202102082).