Palladium (II) bromide

Crystal structure
	Crystal structure of palladium (II) bromide ; __ Pd 2+ __ Br -
General
Surname	Palladium (II) bromide
other names	Palladium dibromide
Ratio formula	PdBr 2
Brief description	black solid
External identifiers / databases
EC number	236-588-2
ECHA InfoCard	100.033.248
PubChem	83469
Wikidata	Q2332385
properties
Molar mass	266.22 g mol −1
Physical state	firmly
density	5.35 g cm −3
Melting point	310 ° C (decomposition)
solubility	almost insoluble in water; soluble in hydrobromic acid and sodium chloride solution;
safety instructions
GHS labeling of hazardous substances Caution
H and P phrases	H: 315-319-335
	P: 261-305 + 351 + 338-302 + 352-321-405-501
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Palladium (II) bromide is an inorganic chemical compound of palladium from the group of bromides .

Extraction and presentation

Palladium (II) bromide can be obtained by reacting palladium with a hydrogen bromide - bromine solution. It can also be obtained directly from the elements.

properties

Palladium (II) bromide is a brown-black solid that is in the form of needle-shaped crystals. It is insoluble in water and organic solvents, but soluble in hydrohalic acids. It crystallizes monoclinically in the space group P 2 ₁ / c (space group no. 14) with the lattice parameters a = 659 pm, b = 396 pm, c = 2522 pm and β = 92.6 ° as well as four formula units per unit cell . In the crystal, each palladium atom is surrounded by four bromine atoms in a square-planar manner, each bromine atom binds to another palladium atom, so that infinite zigzag chains are created. Template: room group / 14

use

Palladium (II) bromide can be used as a catalyst in organic chemistry, although it is sometimes more active than palladium (II) chloride .

Individual evidence

↑ ^a ^b ^c ^d ^e data sheet Palladium (II) bromide, Premion®, 99.998% (metals basis), Pd 39.5% min from AlfaAesar, accessed on August 30, 2013 ( PDF )(JavaScript required) .
↑ ^a ^b ^c ^d Jean d'Ans, Ellen Lax, Roger Blachnik: Pocket book for chemists and physicists . Springer, 1998, ISBN 3-642-58842-5 , pp. 668 ( limited preview in Google Book search).
↑ ^a ^b 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. 1730.
↑ Catherine E. Housecroft: Inorganic Chemistry . Pearson Education, 2005, ISBN 0-13-039913-2 , pp. 686 ( limited preview in Google Book Search).
^ Jiro Tsuji : Palladium Reagents and Catalysts: New Perspectives for the 21st Century . John Wiley & Sons, 2006, ISBN 0-470-02119-5 , pp. 344 ( limited preview in Google Book search).

[Alfa-1] ↑ ^a ^b ^c ^d ^e data sheet Palladium (II) bromide, Premion®, 99.998% (metals basis), Pd 39.5% min from AlfaAesar, accessed on August 30, 2013 ( PDF )(JavaScript required) .

[Lax-2] Jean d'Ans, Ellen Lax, Roger Blachnik: Pocket book for chemists and physicists . Springer, 1998, ISBN 3-642-58842-5 , pp. 668 ( limited preview in Google Book search).

[brauer-3] 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. 1730.

[Catherine_E._Housecroft-4] Catherine E. Housecroft: Inorganic Chemistry . Pearson Education, 2005, ISBN 0-13-039913-2 , pp. 686 ( limited preview in Google Book Search).

[Jiro_Tsuji-5] Jiro Tsuji : Palladium Reagents and Catalysts: New Perspectives for the 21st Century . John Wiley & Sons, 2006, ISBN 0-470-02119-5 , pp. 344 ( limited preview in Google Book search).