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282774

Sigma-Aldrich

Rhodium(III) acetylacetonate

97%

Synonym(s):

2,4-Pentanedione rhodium(III) derivative, Rh(acac)3

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About This Item

Linear Formula:
[CH3COCH=C(O-)CH3]3Rh
CAS Number:
Molecular Weight:
400.23
EC Number:
MDL number:
UNSPSC Code:
12352103
PubChem Substance ID:
NACRES:
NA.23

Assay

97%

form

solid

reaction suitability

reagent type: catalyst

mp

263-264 °C (lit.)

SMILES string

CC(=O)\C=C(/C)O[Rh](O\C(C)=C\C(C)=O)O\C(C)=C\C(C)=O

InChI

1S/3C5H8O2.Rh/c3*1-4(6)3-5(2)7;/h3*3,6H,1-2H3;/q;;;+3/p-3/b3*4-3+;

InChI key

DGOINFUDFBWCMX-MUCWUPSWSA-K

General description

Rhodium(III) acetylacetonate is a yellowcrystalline compound composed of rhodium atoms coordinated with three acetylacetonate ligands. It iswidely used in the field of catalysis, organic electronics and to prepare Rhcomplexes. It is soluble inorganic solvents.

Application

Rhodium(III) acetylacetonate can be used:
  • As a precursor to synthesize Rh nanocrystals with catalytic activities.
  • As an efficient catalyst for the α-alkylation of ketones, β-alkylation of secondary alcohols, and the alkylation of amines with primary alcohols.
  • To prepare highly phosphorescent complexes for organic light-emitting devices.
  • To synthesize the Rh2P NCs supported on carbon (Rh2P/C) by a one-step solvothermal method via a direct reaction between Rh(acac)3 and tri-n-octylphosphine (TOP). The resultant electrocatalyst exhibited remarkable performance for both the hydrogen evolution reaction and the oxygen evolution reaction, surpassing the capabilities of Rh/C and Pt/C catalysts for water splitting .
  • To prepare Single-atom Rh/N-doped carbon electrocatalyst for the oxidation of formic acid.
  • To synthesize Pt–Rh NWs as highly efficient electrocatalysts toward ethanol oxidation reaction (EOR) for Direct ethanol fuel cells. The electrocatalyst demonstrated improved catalytic activities, primarily attributed to the presence of Rh, which enhances its ability to resist poisoning.

Pictograms

Health hazardExclamation mark

Signal Word

Warning

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Repr. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Kinetically Controlled Synthesis of Rhodium Nanocrystals with Different Shapes and a Comparison Study of Their Thermal and Catalytic Properties
Ming Zhao, et al.},
Journal of the American Chemical Society, 143, 6293-6302 (2021)
Subnanometer PtRh Nanowire with Alleviated Poisoning Effect and Enhanced C?C Bond Cleavage for Ethanol Oxidation Electrocatalysis
Yiming Zhu, et al.},
ACS Catalysis, 9, 6607-6612 (2019)
He, D-H. et al.
Tetrahedron Letters, 36, 1059-1059 (1995)
Organic Light-Emitting Devices with High External Quantum Efficiency and Operational Stability Based on Highly Phosphorescent Cyclometalating Rhodium(III) Complexes
Fangfang Wei, et al.
Energy & Fuels, 35, 19123-19131 (2021)
Single-atom Rh/N-doped carbon electrocatalyst for formic acid oxidation
Yu Xiong, et al.
Nature Nanotechnology, 5, 390-397 (2020)

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