Dicarbonyl dichloroplatinum

Structural formula
General
Surname	Dicarbonyl dichloroplatinum
other names	Dicarbonyl dichloroplatinum cis-dicarbonyldichloroplatinum Dicarbonyl dichloridoplatinum
Molecular formula	[PtCl 2 (CO) 2 ]
Brief description	white solid
External identifiers / databases
CAS number 25478-60-8 EC number 247-018-7 ECHA InfoCard 100,042,729 Wikidata Q15632805
properties
Molar mass	326.04 g mol −1
Physical state	firmly
Melting point	103 ° C
solubility	Decomposes in water
safety instructions
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 .

Dicarbonyldichloroplatinum is a chemical compound from the group of metal carbonyls .

Extraction and presentation

Dicarbonyldichloroplatinum can be obtained by reacting platinum (II) chloride with carbon monoxide in the absence of moisture, with higher carbonyl halides always being formed.

${\displaystyle \mathrm {PtCl_{2}+2\ CO\longrightarrow PtCl_{2}(CO)_{2}} }$

In analytically pure form it can be obtained by normal pressure carbonylation of hexachloridoplatinic acid in thionyl chloride .

${\displaystyle \mathrm {H_{2}[PtCl_{6}]+3\ CO\longrightarrow PtCl_{2}(CO)_{2}+COCl_{2}+2\ HCl} }$

Dicarbonyl dichloroplatinum was the first true heteroleptic metal carbonyl complex to be synthesized. Paul Schützenberger succeeded in presenting it in 1868 by introducing chlorine and carbon monoxide into platinum black .

properties

Dicarbonyldichloroplatinum is a white crystalline solid that is air-sensitive and extremely sensitive to hydrolysis. When exposed to moisture, it quickly turns brown to black with decomposition.

Individual evidence

1. ↑ ^{a b c d e f g} Georg Brauer (Ed.) U. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume III, Ferdinand Enke, Stuttgart 1981, ISBN 3-432-87823-0 , p. 1965.
2. ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
3. ↑ Schützenberger, P .: Mémoires sur quelques réactions domnant lieu à la production de l'oxychlorure de carbone, et sur nouveau composé volatil de platine . In: Bulletin de la Société Chimique de Paris . 10, 1868, pp. 188-192.