• Dichlorotetrakis[2-(2-pyridinyl)phenyl]diiridium(III) (CAS 92220-65-0) - TCI D5744 - AMI Scientific
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TCI

CAS 92220-65-0

Dichlorotetrakis[2-(2-pyridinyl)phenyl]diiridium(III) TCI D5744

Dichlorotetrakis[2-(2-pyridinyl)phenyl]diiridium(III) TCI D5744
Rp 4.103.400,00
Rp 4.103.400,00
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TCI D5744, CAS 92220-65-0, is Dichlorotetrakis[2-(2-pyridinyl)phenyl]diiridium(III), a cyclometalated iridium(III) dimer complex bridged by two chloride atoms. Each iridium center binds two 2-phenylpyridine ligands through both iridium–carbon and iridium–nitrogen bonds. In inorganic chemistry and catalysis laboratories, this compound serves as a key precursor for constructing a wide range of cyclometalated iridium complexes. Researchers commonly cleave the chloride bridges using ancillary ligands such as bipyridine, phenanthroline, or acetylacetonate ligands, generating mononuclear complexes whose photophysical properties can be tuned to suit the specific requirements of a research programme.

The property that makes this compound so highly valued is the ease with which its chloride bridges can be displaced, a feature that positions it as the entry point to the extensive family of phosphorescent iridium complexes. Complexes derived from this precursor are known to exhibit strong spin–orbit coupling arising from the heavy iridium atom, allowing triplet excited states to be harvested efficiently. That characteristic underpins its use in the preparation of visible-light-driven photoredox catalysts and of phosphorescent emitter materials, giving a single starting material access to a broad design space.

In Indonesian laboratories, this precursor is typically used in university and institutional research groups working on inorganic synthesis, homogeneous catalysis, and photochemistry. It is handled in synthetic work where the chloride-bridged dimer is opened with a chosen ancillary ligand to build target mononuclear iridium complexes, which are then characterised and evaluated for photocatalytic or luminescent behaviour. Because it functions as a common starting point for many derivatives, it is often kept as a standing reagent for ongoing method development and student research projects.

  • Synthesis of cyclometalated iridium complexes: the chloride-bridged dimer structure is readily opened by incoming ligands, making it a direct route to structurally diverse iridium(III) products.
  • Preparation of visible-light photoredox catalysts: derived complexes harvest triplet excited states efficiently thanks to strong spin–orbit coupling, supporting light-driven redox transformations in synthetic chemistry.
  • Development of phosphorescent emitter materials: the 2-phenylpyridine framework already installed on each iridium center forms the basis of tunable phosphorescent complexes for photophysical studies.
  • Ancillary ligand screening studies: bipyridine, phenanthroline, and acetylacetonate ligands can each be introduced to the same precursor, allowing systematic comparison of resulting photophysical properties.
  • Teaching and research in inorganic coordination chemistry: the compound demonstrates cyclometalation, iridium–carbon and iridium–nitrogen bonding, and bridge-cleavage chemistry within a single well-defined reagent.

Brand TCI
CAS number 92220-65-0
Molecular formula —
Purity —
Category Chemistry > Catalysis and Inorganic Chemistry > Transition Elements [Catalysis and Inorganic Chemistry]
Pack sizes available in standard TCI research-scale catalogue pack sizes; please confirm the required size when ordering
Physical form —
Storage store in a cool, dry place in a tightly closed original container
  • Chemical name: Dichlorotetrakis[2-(2-pyridinyl)phenyl]diiridium(III)

Store the material in its original tightly closed container in a cool, dry, and well-ventilated place, protected from moisture and away from incompatible substances. Amber or otherwise light-protected glass containers with chemically resistant closures are suitable for transfer and short-term storage of prepared solutions. Handle the solid inside a fume hood, using nitrile gloves, safety glasses, and a laboratory coat, and avoid generating or inhaling dust. Weigh and transfer with clean, dry spatulas to prevent contamination. Keep containers clearly labelled with the compound name and CAS number, close them promptly after use, and consult the manufacturer's safety data sheet before first use and for waste disposal in accordance with local institutional regulations.

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