Top Qs
Timeline
Chat
Perspective
Bis(triphenylphosphine)rhodium carbonyl chloride
Chemical compound From Wikipedia, the free encyclopedia
Remove ads
Bis(triphenylphosphine)rhodium carbonyl chloride is the organorhodium complex with the formula [RhCl(CO)(PPh3)2]. This complex of rhodium(I) is a bright yellow, air-stable solid. It is the Rh analogue of Vaska's complex, the corresponding iridium complex. With regards to its structure, the complex is square planar with mutually trans triphenylphosphine (PPh3) ligands. The complex is a versatile homogeneous catalyst.[1]
(PPh3)2.svg)
Remove ads
Synthesis and reactions
Bis(triphenylphosphine)rhodium carbonyl chloride was originally prepared by treating Rh2Cl2(CO)4 with triphenylphosphine.[2] However, it is typically produced by the carbonylation of Wilkinson's catalyst:[3]
- RhCl[P(C6H5)3]3 + CO → RhCl(CO)[P(C6H5)3]2 + P(C6H5)3
In homogeneous catalysis, this conversion is typically an undesirable side-reaction since [RhCl(CO)(PPh3)2] is a poor hydrogenation catalyst.
Bis(triphenylphosphine)rhodium carbonyl chloride is the precursor to tris(triphenylphosphine)rhodium carbonyl hydride, an important catalyst for hydroformylation.
- RhCl(CO)[P(C6H5)3]2 + NaBH4 + P(C6H5)3 → RhH(CO)[P(C6H5)3]3 + NaCl + BH3
Remove ads
References
Wikiwand - on
Seamless Wikipedia browsing. On steroids.
Remove ads