Mastering extreme size constraints in the clathrate‐I borosilicide Cs8B8Si38. Issue 2 (22nd January 2021)

• Record Type: Journal Article
• Authors: Hübner, Julia‐Maria; Jung, Walter; Koželj, Primož; Bobnar, Matej; Cardoso‐Gil, Raul; Burkhardt, Ulrich; Böhme, Bodo; Baitinger, Michael; Schwarz, Ulrich; Grin, Yuri
• Is Part Of: Zeitschrift für anorganische und allgemeine Chemie. Volume 647:Issue 2/3(2021)
• Page Start: 119
• Page End: 125
• Publication Date: 2021-01-22
• Subjects: Boron -- silicon -- cesium -- clathrate-I -- high-pressure synthesis; Chemistry, Inorganic -- Periodicals; Chemistry -- Periodicals; 540
• DOI: 10.1002/zaac.202000400
• Languages: English
• ISSNs: 0044-2313

Abstract

Abstract: Cs8 B8 Si38 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. Abstract :