(cymene)ruthenium dichloride dimer

(cymene)ruthenium dichloride dimer

Names
Other names Dichloro(p-cymene)ruthenium(II) dimer
Identifiers
CAS Number	52462-29-0 Y
3D model (Jmol)	Interactive image Interactive image
ChemSpider	8297222 Y
ECHA InfoCard	100.126.850
InChI InChI=1S/2C10H14.4ClH.2Ru/c2*1-8(2)10-6-4-9(3)5-7-10;;;;;;/h2*4-8H,1-3H3;4*1H;;/q;;;;;;2*+2/p-4 Y Key: LAXRNWSASWOFOT-UHFFFAOYSA-J Y InChI=1/2C10H14.4ClH.2Ru/c2*1-8(2)10-6-4-9(3)5-7-10;;;;;;/h2*4-8H,1-3H3;4*1H;;/q;;;;;;2*+2/p-4 Key: LAXRNWSASWOFOT-XBHQNQODAM
SMILES [Ru+2].[Ru+2].[Cl-].[Cl-].[Cl-].[Cl-].c1cc(ccc1C(C)C)C.c1cc(ccc1C(C)C)C Cc1ccc(cc1)C(C)C.Cc1ccc(cc1)C(C)C.[Cl-].[Cl-].[Cl-].[Cl-].[Ru+2].[Ru+2]
Properties
Chemical formula	C20H28Cl4Ru2
Molar mass	612.38 g·mol−1
Appearance	Red solid
Melting point	247 to 250 °C (477 to 482 °F; 520 to 523 K) (decomposes)
Solubility in water	Slightly, with hydrolysis
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y  (what is YN ?)
Infobox references

(Cymene)ruthenium dichloride dimer is the organometallic compound with the formula [(cymene)RuCl₂]₂. This red-coloured, diamagnetic solid is a reagent in organometallic chemistry and homogeneous catalysis.

The dimer is prepared by the reaction of the phellandrene with hydrated ruthenium trichloride. In solution, [(cymene)RuCl₂]₂ exchanges with other arenes, releasing free p-cymene.

(Cymene)ruthenium dichloride dimer reacts with Lewis bases to give monometallic adducts:

Such monomers adopt pseudo-octahedral piano-stool structures.

Treatment of [(cymene)RuCl₂]₂ with the chelating ligand TsDPENH. The product (cymene)Ru(TsDPEN-H) is a catalyst for asymmetric transfer hydrogenation.

[(cymene)RuCl₂]₂ is also used to prepare catalysts (by monomerization with dppf) used in borrowing hydrogen catalysis, a catalytic reaction that is based on the activation of alcohols towards nucleophilic attack.