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Rhodium is a chemical element ... Heating a methanolic solution of hydrated rhodium trichloride with ... a tetrameric complex with the true formula Rh 4 F 20) and ...
This complex was first prepared from hexamethyl Dewar benzene and RhCl 3 (H 2 O) 3. [3] [4] [5] The hydrohalic acid necessary for the ring-contraction rearrangement is generated in situ in methanolic solutions of the rhodium salt, and the second step has been carried out separately, confirming this mechanistic description. [6]
Chlorobis(ethylene)rhodium dimer is an organorhodium compound with the formula Rh 2 Cl 2 (C 2 H 4) 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.
Wilkinson's catalyst (chloridotris(triphenylphosphine)rhodium(I)) is a coordination complex of rhodium with the formula [RhCl(PPh 3)], where 'Ph' denotes a phenyl group. It is a red-brown colored solid that is soluble in hydrocarbon solvents such as benzene, and more so in tetrahydrofuran or chlorinated solvents such as dichloromethane .
Rhodocene is a chemical compound with the formula [Rh(C 5 H 5) 2]. Each molecule contains an atom of rhodium bound between two planar aromatic systems of five carbon atoms known as cyclopentadienyl rings in a sandwich arrangement. It is an organometallic compound as it has covalent rhodium–carbon bonds. [2]
Tetrarhodium dodecacarbonyl is the chemical compound with the formula Rh 4 (CO) 12. This dark-red crystalline solid is the smallest binary rhodium carbonyl that can be handled as a solid under ambient conditions. It is used as a catalyst in organic synthesis.
Rhodium(II) acetate is the coordination compound with the formula Rh 2 (AcO) 4, where AcO − is the acetate ion (CH 3 CO − 2). This dark green powder is slightly soluble in polar solvents, including water. It is used as a catalyst for cyclopropanation of alkenes. It is a widely studied example of a transition metal carboxylate complex. [2]
Chlorobis(cyclooctene)rhodium dimer is an organorhodium compound with the formula Rh 2 Cl 2 (C 8 H 14) 4, where C 8 H 14 is cis-cyclooctene. Sometimes abbreviated Rh 2 Cl 2 (coe) 4 , it is a red-brown, air-sensitive solid that is a precursor to many other organorhodium compounds and catalysts.