Barium platinum

Crystal structure
	__ Ba 2+ __ Pt -
General
Surname	Barium platinum
other names	Barium monoplatinide
Ratio formula	BaPt
External identifiers / databases
Wikidata	Q15730225
properties
Molar mass	332.41 g mol −1
Physical state	firmly
safety instructions
GHS hazard labeling ; no classification available
GHS hazard labeling ; no classification available
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Barium platinum , more precisely barium monoplatinide , BaPt, is a salt of barium with the unusual Pt ^- ion. In addition to barium monoplatinide, there is a dibariumplatinide and a tribariumdiplatinide .

Extraction and presentation

Barium platinum can be obtained by reacting barium and platinum at around 1000 ° C under an argon atmosphere.

properties

The structure of barium platinum is similar to that of nickel arsenide , but is strongly compressed by the formation of Pt – Pt bonds along the c axis. The bond length between the platinum atoms is 271 pm. The barium gives off a valence electron to the platinum, so the compound is to be formulated as (Ba ²⁺ ) (Pt ^- ) · e ^- . Barium platinum is the first example of a Zintl phase in which the polyatomic structure is established by a transition element .

Individual evidence

↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
↑ Andrey Karpov, Jürgen Nuss u. a .: Covalently Bonded [Pt] - Chains in BaPt: Extension of the Zintl − Klemm Concept to Anionic Transition Metals? In: Journal of the American Chemical Society. Volume 126, 2004, p. 14123, doi: 10.1021 / ja0401186 .
^ ^A ^b Martin Jansen: Effects of relativistic motion of electrons on the chemistry of gold and platinum . In: Solid State Sciences . tape 7 , December 2005, pp. 1464–1474 , doi : 10.1016 / j.solidstatesciences.2005.06.015 .
↑ Maria Barysz, Yasuyuki Ishikawa: Relativistic Methods for Chemists . Springer Science & Business Media, 2010, ISBN 978-1-4020-9975-5 , p. 67 .

[NV-1] This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.

[DOI10.1021/ja0401186-2] Andrey Karpov, Jürgen Nuss u. a .: Covalently Bonded [Pt] - Chains in BaPt: Extension of the Zintl − Klemm Concept to Anionic Transition Metals? In: Journal of the American Chemical Society. Volume 126, 2004, p. 14123, doi: 10.1021 / ja0401186 .

[Solid_State_Sciences-3] A ^b Martin Jansen: Effects of relativistic motion of electrons on the chemistry of gold and platinum . In: Solid State Sciences . tape 7 , December 2005, pp. 1464–1474 , doi : 10.1016 / j.solidstatesciences.2005.06.015 .

[Relativistic_Methods_for_Chemists-4] Maria Barysz, Yasuyuki Ishikawa: Relativistic Methods for Chemists . Springer Science & Business Media, 2010, ISBN 978-1-4020-9975-5 , p. 67 .