Universität zu Köln

Jung, Walter, Boehme, Bodo, Huebner, Julia M., Burkhardt, Ulrich, Borrmann, Horst, Bobnar, Matej, Nguyen, Hong Duong, Pantenburg, Ingo, Etter, Martin ORCID: 0000-0002-5183-3585, Schwarz, Ulrich ORCID: 0000-0002-7301-8629, Grin, Yuri and Baitinger, Michael (2021). The impact of boron atoms on clathrate-I silicides: composition range of the borosilicide K8-xBySi46-y. Dalton Trans., 50 (4). S. 1274 - 1283. CAMBRIDGE: ROYAL SOC CHEMISTRY. ISSN 1477-9234

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Abstract

The clathrate-I borosilicide K8-xBySi46-y (0.8 <= x <= 1.2 and 6.4 <= y <= 7.2; space group Pm3n) was prepared in sealed tantalum ampoules between 900 degrees C and 1000 degrees C. By high-pressure preparation at 8 GPa and 1000 degrees C, a higher boron content is achieved (x = 0.2, y = 7.8). Crystal structure and composition were established from X-ray diffraction data, chemical analysis, WDX spectroscopy, and confirmed by B-11 and Si-29 NMR, and magnetic susceptibility measurements. The compositions are electron-balanced according to the Zintl rule within one estimated standard deviation. The lattice parameter varies with composition from a = 9.905 angstrom for K7.85(2)B7.8(1)Si38.2(1) to a = 9.968(1) angstrom for K6.80(2)B6.4(5)Si39.6(5).

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Jung, Walter UNSPECIFIED UNSPECIFIED UNSPECIFIED Boehme, Bodo UNSPECIFIED UNSPECIFIED UNSPECIFIED Huebner, Julia M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Burkhardt, Ulrich UNSPECIFIED UNSPECIFIED UNSPECIFIED Borrmann, Horst UNSPECIFIED UNSPECIFIED UNSPECIFIED Bobnar, Matej UNSPECIFIED UNSPECIFIED UNSPECIFIED Nguyen, Hong Duong UNSPECIFIED UNSPECIFIED UNSPECIFIED Pantenburg, Ingo UNSPECIFIED UNSPECIFIED UNSPECIFIED Etter, Martin UNSPECIFIED orcid.org/0000-0002-5183-3585 UNSPECIFIED Schwarz, Ulrich UNSPECIFIED orcid.org/0000-0002-7301-8629 UNSPECIFIED Grin, Yuri UNSPECIFIED UNSPECIFIED UNSPECIFIED Baitinger, Michael UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-585049
DOI:	10.1039/d0dt03339a
Journal or Publication Title:	Dalton Trans.
Volume:	50
Number:	4
Page Range:	S. 1274 - 1283
Date:	2021
Publisher:	ROYAL SOC CHEMISTRY
Place of Publication:	CAMBRIDGE
ISSN:	1477-9234
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language Chemistry, Inorganic & Nuclear Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/58504