Names | |
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Other names
Rhodium acetylacetonate dicarbonyl
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Identifiers | |
3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.035.392 |
PubChem CID
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Properties | |
C7H7O4Rh | |
Molar mass | 258.034 g·mol−1 |
Appearance | green solid |
Density | 1.95 g/cm3 |
Melting point | 155 °C (311 °F; 428 K) |
Structure[1] | |
triclinic | |
P1 | |
a = 6.5189 Å, b = 7.7614 Å, c = 9.205 Å α = 106.04°, β = 91.15°, γ = 100.21° at 20°C
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Lattice volume (V)
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439.3 Å3 |
Formula units (Z)
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2 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Dicarbonyl(acetylacetonato)rhodium(I) is an organorhodium compound with the formula Rh(O2C5H7)(CO)2. The compound consists of two CO ligands and an acetylacetonate. It is a dark green solid that dissolves in acetone and benzene, giving yellow solutions. The compound is used as a precursor to homogeneous catalysts.[2]
It is prepared by treating rhodium carbonyl chloride with sodium acetylacetonate in the presence of base:[3]
The complex adopts square planar molecular geometry. The molecules stack with Rh---Rh distances of about 326 pm. As such, it is representative of a linear chain compound.[1]