Chromium acetate hydroxide
# Chromium acetate hydroxide

Chromium acetate hydroxide is the coordination complex with the formula $[Cr_2(OH)_3(OAc)_3]_4.$ A dark violet solid, it crystallizes as the triacontatetrahydrate (34 molecules of water of crystallization). It is water soluble.

## Structure

The complex is a tetramer of binuclear $Cr_2(OH)_3(OAc)_3.$ 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 $d^3$ ions give kinetically robust complexes. Overall, the complex's structure is unusual compared to other transition metal carboxylate complexes.

