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Dicarbonyl(acetylacetonato)rhodium(I)

Dicarbonyl(acetylacetonato)rhodium(I)
Rh(acac)(CO)2.png
Names
Other names
Rhodium acetylacetonate dicarbonyl
Identifiers
Properties
C7H7O4Rh
Molar mass 258.03 g·mol−1
Appearance green solid
Density 1.95 g/cm3
Melting point 155 °C (311 °F; 428 K)
Structure
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
439.3 Å3
2
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

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. The compound is used as a precursor to homogeneous catalysts.

It is prepared by treating rhodium carbonyl chloride with acetylacetone in the presence of base:

The complex adopts square planar molecular geometry. The molecules stack with Rh---Rh distances of about 326 pm.


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