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Di-μ-chlorotetraethylene dirhodium(I)

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Origin: China

Cas No: 12081-16-2

Specification: 99%min

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CAS No.: 12081-16-2 Formula: C8H16Cl2Rh2 Molecular Weight: 388.93000

Description

Chlorobis(ethylene)rhodium dimer is an organorhodium compound with the formula Rh2Cl2(C2H4)4. It is a red-orange solid that is soluble in nonpolar organic solvents. The molecule consists of two bridging chloride ligands and four ethylene ligands. The ethylene ligands are labile and readily displaced even by other alkenes. A variety of homogeneous catalysts have been prepared from this complex.
The complex is prepared by treating an aqueous methanolic solution of hydrated rhodium trichloride with ethylene at room temperature. Rh(III) is reduced with oxidation of ethylene to acetaldehyde:
2 RhCl3(H2O)3 + 6 C2H4 → Rh2Cl2(C2H4)4 + 2 CH3CHO + 4 HCl + 4 H2O
Reflecting the lability of its ligands, the complex does not tolerate recrystallization.
The complex reacts slowly with water to give acetaldehyde. With HCl, it gives RhCl2(C2H2)2−. The complex catalyzes the dimerization of ethylene to 1-butene.

Basic Info

Chemical Name	Di-μ-chlorotetraethylene dirhodium(I)
Synonyms	Dichlorotetra(ethene)dirhodium; ([Rh(C2H4)2Cl]2; Bis[chlorobis(ethylene)rhodium],Bis[chlorodiethylenerhodium],Chlorobis(ethylene)rhodium dimer; Chlorobis(ethylene)rhodium dimer; Divinylrhodium chloride dimer; Diethylenerhodium chloride dimer; Tetrakis(ethylene)dirhodium(I) Dichloride; Bis[chlorobis(ethylene)rhodium]; Chlorobis(ethylene)rhodium(I) Dimer; ethene,rhodium,dichloride; Dichlorotetrakis(ethene)dirhodium; Tetrakis; Bis[chlorodiethylenerhodium];
CAS No.	12081-16-2
Molecular Formula	C8H16Cl2Rh2
Molecular Weight	388.93000
PSA	0.00000
LogP	4.58780