Chromium(III) acetate hydroxide
Names
IUPAC name
Chromium(III) acetate hydroxide
Other names
Acetic acid of the chromium salt,
Chromium(III)acetatehydroxide,Cr24%,
Chromic acetate hydroxide,
Chromium - acetic acid (3:7) dihydrate,
Chromium Acetic Acid,
Ccris 6345,
Identifiers
ECHA InfoCard 100.049.480
Properties
C24H48Cr8O36
Molar mass 1328.581 g·mol−1
Appearance violet solid
Density 1.484 g/cm3
soluble
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Harmful by inhalation, in contact with skin and if swallowed, Irritating to eyes, respiratory system and skin
GHS labelling:
GHS07: Exclamation mark
Warning
H302, H312, H315, H317, H319, H332, H335
Safety data sheet (SDS) MSDS
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Chromium acetate hydroxide is the coordination complex with the formula [Cr2(OH)3(OAc)3]4. A dark violet solid, it crystallizes as the triacontatetrahydrate (34 molecules of water of crystallization). It is water soluble.[1]

Structure

The complex is a tetramer of binuclear Cr2(OH)3(OAc)3. The subunits are linked by acetate and hydroxide ligands. The oxidation state of chromium is III, which explains the stability of the complex since octahedral d3 ions give kinetically robust complexes. Overall, the complex's structure is unusual compared to other transition metal carboxylate complexes.

See also

References

  1. ↑ Eshel, Michal; Bino, Avi; Felner, Israel; Johnston, David C.; Luban, Marshall; Miller, Lance L. (2000). "Polynuclear Chromium(III) Carboxylates. 1. Synthesis, Structure, and Magnetic Properties of an Octanuclear Complex with a Ring Structure". Inorganic Chemistry. 39 (7): 1376–1380. doi:10.1021/ic9907009. PMID 12526439.
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