Chromium(II) acetylacetonate

Chromium(II) acetylacetonate is the coordination compound with the formula Cr(O₂C₅H₇)₂. It is the homoleptic acetylacetonate complex of chromium(II). It is an air-sensitive, paramagnetic yellow-brown solid. According to X-ray crystallography, the Cr center is square planar.^[1] In contrast to the triplet ground state for this complex, the bis(pyridine) adduct features noninnocent acac^2- ligand attached to Cr(III).^[2]

Chromium(II) acetylacetonate

Names
Other names chromous acetylacetonate
Identifiers
CAS Number	14024-50-1
3D model (JSmol)	Interactive image
ChEBI	CHEBI:33036
ChemSpider	4574209
ECHA InfoCard	100.034.401
EC Number	237-856-1
Gmelin Reference	487208
PubChem CID	5460744
InChI InChI=1S/2C5H7O2.Cr/c2*1-4(6)3-5(2)7;/h2*3H,1-2H3;/q2*-1;+2 Key: JCHSWVKCCGSOCY-UHFFFAOYSA-N
SMILES CC(=O)[CH-]C(=O)C.CC(=O)[CH-]C(=O)C.[Cr+2]
Properties
Chemical formula	C10H14CrO4
Molar mass	250.214 g·mol−1
Appearance	yellow-brown solid
Density	1.48 g/cm3
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Chromium(II) acetylacetonate is prepared by treating chromous acetate with acetylacetone:^[3]

Cr₂(O₂CCH₃)₄(H₂O)₂ + 4 H₂C(COCH₃)₂ → 2 Cr(CH₃C(O)CHC(O)CH₃)₂ + 8 HO₂CCH₃ + 2 H₂O

See also

• Chromium(III) acetylacetonate