• Carbonylchlorobis(triphenylphosphine)iridium(I) (CAS 14871-41-1) - TCI C2252 - AMI Scientific
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TCI

CAS 14871-41-1

Carbonylchlorobis(triphenylphosphine)iridium(I) TCI C2252

Carbonylchlorobis(triphenylphosphine)iridium(I) TCI C2252
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Rp 2.539.950,00
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Description

TCI C2252 Carbonylchlorobis(triphenylphosphine)iridium(I), widely known as Vaska's complex, is an organometallic iridium compound with a square planar geometry bearing carbonyl, chloride, and two triphenylphosphine ligands. This complex holds a distinguished position in inorganic chemistry because it serves as the textbook example of oxidative addition, the key step underlying nearly every transition metal catalytic cycle. In the laboratory, the compound is employed both as a catalyst and as a research model for understanding how a metal centre cleaves sigma bonds that were previously considered difficult to activate.

The property that makes this complex so valuable is its electron-rich, d8 iridium(I) centre with an open coordination position. This configuration allows the complex to bind small molecules such as oxygen, hydrogen, carbon monoxide, and a range of organic halides, either reversibly or irreversibly. The shift in the vibrational frequency of the carbonyl ligand in the infrared spectrum following addition can be observed clearly, which makes this complex an exceptionally informative teaching and research tool. As a coloured crystalline solid, the compound is relatively stable to handle, although careful technique remains advisable.

In Indonesian laboratories, this complex is typically used in university and institutional research settings where organometallic chemistry, homogeneous catalysis, and C-H activation are studied. It supports advanced inorganic chemistry teaching, where the oxidative addition reaction and the accompanying infrared shift provide a clear demonstration of fundamental metal-ligand behaviour. Research groups working on catalyst development and small-molecule activation also rely on it as a well-characterised reference system against which newly prepared complexes can be compared.

Laboratory Applications

  • Oxidative addition studies: the square planar iridium(I) centre reacts cleanly with sigma-bonded substrates, providing a reliable and reproducible model reaction for mechanistic investigation.
  • C-H activation research: the electron-rich metal centre with an open coordination site allows investigation of how carbon-hydrogen bonds are approached and cleaved by transition metals.
  • Homogeneous catalysis: the complex functions as a catalyst in solution-phase transformations, offering a well-defined single-site species whose behaviour can be tracked throughout the catalytic cycle.
  • Infrared spectroscopic teaching: the clear shift of the carbonyl stretching frequency after addition gives students a direct, visible measure of changes in electron density at the metal.
  • Small-molecule activation: the complex binds oxygen, hydrogen, and carbon monoxide reversibly or irreversibly, making it a standard platform for studying gas binding at metal centres.

Specifications

  • Brand: TCI
  • CAS number: 14871-41-1
  • Category: Chemistry > Catalysis and Inorganic Chemistry > C-H Activation [Catalysis]
  • Chemical name: Carbonylchlorobis(triphenylphosphine)iridium(I), also known as Vaska's complex
  • Physical form: coloured crystalline solid
  • Pack sizes: available in standard TCI catalogue pack sizes; please confirm the required quantity when ordering

Handling and Storage

Store the compound in its original tightly closed container, kept in a cool, dry, and well-ventilated area away from direct sunlight and sources of heat or ignition. Amber glass or the supplied container is suitable, and the material should be protected from moisture and from prolonged exposure to air, since the electron-rich iridium(I) centre is capable of binding atmospheric oxygen. Handle in a fume hood using gloves, safety glasses, and a laboratory coat, and transfer the solid with clean, dry spatulas to avoid contamination. Consult the manufacturer's safety data sheet before use, and follow institutional procedures for the disposal of heavy metal residues.

Dokumen Keamanan & Mutu

↓ Unduh SDS / MSDS (PDF resmi TCI)
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