Hydridotetrakis(triphenylphosphine)rhodium(I) is a low-valent rhodium complex carrying one hydride ligand and four triphenylphosphine ligands. The compound belongs to the family of transition metal catalysts that form the backbone of modern organometallic chemistry. In the laboratory, complexes of this type are used to activate bonds that are difficult to handle with conventional reagents, particularly in reactions that add hydrogen atoms or functional groups across double bonds in a controlled manner, allowing transformations to proceed under far milder conditions than uncatalysed methods require.
The advantages that make this complex a preferred choice lie in its electron-rich rhodium(I) centre and in phosphine ligands that can dissociate to open a coordination site for the substrate. The presence of a hydride ligand bound directly to the metal means the catalyst is already in the active form required for certain catalytic cycles, without the need for a separate activation step. The bulky triphenylphosphine ligands also provide a steric environment that helps direct the selectivity of the reaction toward the desired product.
Because the catalytic activity is very high, the amount required per reaction is generally very small, so a 200 mg pack is sufficient for many bench-scale experiments. In Indonesian laboratories, this profile suits research groups and analytical facilities that run organometallic and catalysis work on a modest scale, where a single small pack supports an extended programme of trial reactions rather than a single large preparation.
- Catalytic hydrogenation studies, where the metal-bound hydride ligand places the complex directly into the active form needed for hydrogen transfer to unsaturated substrates.
- Controlled addition of functional groups across double bonds, since the electron-rich rhodium(I) centre activates bonds that conventional reagents cannot address under mild conditions.
- Organometallic reaction development, because phosphine dissociation opens a coordination site that allows systematic study of substrate binding and catalytic turnover.
- Selectivity screening experiments, where the bulky triphenylphosphine ligands create a defined steric environment that helps steer reactions toward the intended product.
- Bench-scale catalyst evaluation, as the very high activity means small quantities suffice, letting one pack support many comparative trial reactions in a research programme.
| Brand | TCI |
|---|---|
| CAS number | 18284-36-1 |
| Molecular formula | — |
| Purity | — |
| Category | Chemistry > Catalysis and Inorganic Chemistry > Transition Elements [Catalysis and Inorganic Chemistry] |
| Pack sizes | 200 mg |
| Physical form | — |
| Storage | keep under conditions appropriate for an air-sensitive low-valent transition metal complex |
- Product code: TCI H1317
Store the container tightly closed in a cool, dry place away from heat sources and direct sunlight. As a low-valent rhodium(I) phosphine complex, the material should be protected from air and moisture; keep it in its original sealed container and, where facilities allow, handle it under an inert atmosphere using a glovebox or Schlenk line. Weigh and transfer the solid with clean, dry spatulas to avoid contamination. Work in a well-ventilated fume hood, wear gloves, safety goggles and a laboratory coat, and follow the supplier safety data sheet for full handling and disposal guidance.
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