Allylpalladium chloride dimer is a chemical compound

Chemical compound

A chemical compound is a pure chemical substance consisting of two or more different chemical elements that can be separated into simpler substances by chemical reactions. Chemical compounds have a unique and defined chemical structure; they consist of a fixed ratio of atoms that are held together...

 with the formula

Chemical formula

A chemical formula or molecular formula is a way of expressing information about the atoms that constitute a particular chemical compound....

 (η

Hapticity

The term hapticity is used to describe how a group of contiguous atoms of a ligand are coordinated to a central atom. Hapticity of a ligand is indicated by the Greek character 'eta', η. A superscripted number following the η denotes the number of contiguous atoms of the ligand that are bound to...

³- C₃H₅)₂Pd₂Cl₂. This yellow air-stable compound is an important catalyst used in organic synthesis

Organic synthesis

Organic synthesis is a special branch of chemical synthesis and is concerned with the construction of organic compounds via organic reactions. Organic molecules can often contain a higher level of complexity compared to purely inorganic compounds, so the synthesis of organic compounds has...

.

Synthesis and reactions

The compound is prepared by purging carbon monoxide

Carbon monoxide

Carbon monoxide , also called carbonous oxide, is a colorless, odorless, and tasteless gas that is slightly lighter than air. It is highly toxic to humans and animals in higher quantities, although it is also produced in normal animal metabolism in low quantities, and is thought to have some normal...

 through a methanolic aqueous solution

Aqueous solution

An aqueous solution is a solution in which the solvent is water. It is usually shown in chemical equations by appending aq to the relevant formula, such as NaCl. The word aqueous means pertaining to, related to, similar to, or dissolved in water...

 of palladium(II) chloride

Palladium(II) chloride

Palladium chloride, also known as palladium dichloride, are the chemical compounds with the formula PdCl2. PdCl2 is a common starting material in palladium chemistry – palladium-based catalysts are of particular value in organic synthesis. It is prepared by chlorination of...

, sodium chloride

Sodium chloride

Sodium chloride, also known as salt, common salt, table salt or halite, is an inorganic compound with the formula NaCl. Sodium chloride is the salt most responsible for the salinity of the ocean and of the extracellular fluid of many multicellular organisms...

, and allyl chloride

Allyl chloride

Allyl chloride is the organic compound with the formula CH2=CHCH2Cl. This colorless liquid is insoluble in water but soluble in common organic solvents. It is mainly converted to epichlorohydrin, used in the production of plastics. It is a chlorinated derivative of propylene.-Production:Allyl...

.

2Na₂PdCl₄ + 2 CH₂=CHCH₂Cl + 2 CO + 2 H₂O → (C₃H₅)₂Pd₂Cl₂ + 4 NaCl + 2 CO₂ + 4 HCl

APC reacts with sources of cyclopentadienyl anion to give the corresponding 18e complex cyclopentadienyl allyl palladium

Cyclopentadienyl allyl palladium

Cyclopentadienyl allyl palladium is an organometallic reagent with formula Pd. This reddish solid is used for thin film chemical vapor deposition of palladium.-Preparation:...

:₂Pd₂Cl₂ + 2 NaC₅H₅ → 2 Pd(η³-C₃H₅)(η⁵-C₅H₅) + 2 NaCl