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Mastering extreme size constraints in the clathrate‐I borosilicide Cs 8 B 8 Si 38
Author(s) -
Hübner JuliaMaria,
Jung Walter,
Koželj Primož,
Bobnar Matej,
CardosoGil Raul,
Burkhardt Ulrich,
Böhme Bodo,
Baitinger Michael,
Schwarz Ulrich,
Grin Yuri
Publication year - 2021
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.202000400
Subject(s) - clathrate hydrate , diamagnetism , rubidium , potassium , chemistry , group (periodic table) , phase (matter) , materials science , analytical chemistry (journal) , physics , hydrate , metallurgy , magnetic field , environmental chemistry , organic chemistry , quantum mechanics
Cs 8 B 8 Si 38 is obtained by high‐pressure high‐temperature synthesis at p =8 GPa and T =1273 K. The new compound (space group Pm 3 ‾ n ; a =10.0312(3) Å) is the third example for a clathrate‐I borosilicide after the potassium and rubidium varieties, respectively. The phase slowly deteriorates in air and moisture but is thermally stable up to 1050 K at ambient pressure. [Cs + ] 8 [B – ] 8 [Si 0 ] 38 is electronically balanced, diamagnetic, and shows semiconducting behavior.