(1,5-Cyclooctadiene)bis(trimethylsilylmethyl)palladium(II)
CAS 225931-80-6
(COD)Pd(CH₂TMS)₂ is the cleanest halide- and phosphine-free Pd(II) precursor available — its labile ligands strip off quantitatively, making it the precursor of choice for well-defined NHC–Pd complexes and low-residue catalysis research.
Typical specification
| Molecular formula | Pd(C₈H₁₂)(CH₂Si(CH₃)₃)₂ |
|---|---|
| Molecular weight | 389.03 |
| Assay | ≥ 97% |
| Palladium content | 27.3% |
| Appearance | Off-white to pale-yellow crystals |
| Storage | −20 °C under inert gas |
| HS code (export) | 2843900099 |
Lot-specific COA issued with every shipment. SDS and ICP elemental impurity data available on request.
Where (COD)Pd(CH₂TMS)₂ is used
Well-defined complex synthesis
Both alkyl groups and the COD ligand displace cleanly, giving halide-free routes to NHC–Pd and exotic ligand complexes without silver-salt metathesis steps.
Low-residue catalysis studies
Used where chloride or phosphine residues would confound mechanistic work or contaminate electronic materials made by Pd-catalyzed routes.
Storage and shipping
Storage. Store at −20 °C under inert gas; thermally sensitive, decomposes above ambient over time.
Shipping. Ships cold-chain in sealed ampoules under argon; summer shipments include extended cold packs.
Packaging. 250 mg · 1 g · 5 g
Synonyms
- (COD)Pd(CH2SiMe3)2
- Bis(trimethylsilylmethyl)(COD)palladium
- Halide-free Pd precursor
Frequently asked questions
How is cold-chain integrity ensured?
Lots ship in argon-sealed ampoules with cold packs sized to the transit lane; a production date and recommended use-by window appear on the COA.
How is pricing structured?
Quotes reference the day's metal fixing on assayed contained metal plus a stated conversion charge, and can be locked at order confirmation for recurring volumes.
What documentation is included?
Every lot ships with a certificate of analysis stating assayed metal content, plus an English SDS. ICP trace-metal panels are available on request.