Platinum (II, IV) bromide

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Crystal structure
Crystal structure of platinum (II, IV) bromide
__ Pt 4+      __ Pt 2+      __ Br -
General
Surname Platinum (II, IV) bromide
other names

Platinum tribromide

Ratio formula PtBr 3
Brief description

black solid

External identifiers / databases
CAS number 25985-07-3
Wikidata Q4096886
properties
Molar mass 434.79 g mol −1
Physical state

firmly

density

6.504 g cm −3

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 .

Platinum (II, IV) bromide is an inorganic chemical compound of platinum from the group of bromides .

Extraction and presentation

Platinum (II, IV) bromide can be obtained by reacting platinum (II) bromide with bromine .

properties

Platinum (II, IV) bromide is a black powder that is somewhat affected by water. It is sparingly soluble in ethanol and insoluble in ether. It has a trigonal crystal structure with the space group R 3 (space group no. 148) and the lattice parameters a = 2231.8 pm, c = 903.4 pm and c / a = 0.4048 and 36 formula units per unit cell . The compound was synthesized and investigated by Lothar Wöhler at the beginning of the 20th century. Template: room group / 148

Individual evidence

  1. ↑ a b c 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. 1714.
  2. ^ Jean d'Ans, Ellen Lax, Roger Blachnik: Pocket book for chemists and physicists . Springer DE, 1998, ISBN 3-642-58842-5 , pp. 674 ( limited preview in Google Book search).
  3. ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
  4. ^ Hans Georg von Schnering, Jen-Hui Chang, Maria Freiberg, Karl Peters, Eva-Maria Peters, Alim Ormeci, Liane Schröder, Gerhard Thiele, Caroline Röhr: Structure and Bonding of the Mixed-Valent Platinum Trihalides, PtCl3 and PtBr3. In: Journal of Inorganic and General Chemistry. 630, 2004, pp. 109-116, doi : 10.1002 / zaac.200300277 .