Hexa-μ₂-acetato-κ¹²O:O′-μ₃-oxido-tris[aquachromium(III)] nitrate acetic acid solvate

Abstract

In the crystal structure of the title salt, [Cr3(C2H3O2)6O(H2O)3]NO3·CH3CO2H, the trinuclear [Cr3(CH3CO2)6O(H2O)3] cluster cation has an oxide O atom that is connected to three water-coordinated CrIII atoms, the three metal atoms forming the points of an equilateral triangle. Each of the six acetate carboxyl­ate groups bridges a Cr–O–Cr fragment. The cluster cation inter­acts with the nitrate counter-ion and solvent mol­ecules through O—H⋯O hydrogen bonds, forming a three-dimensional hydrogen-bonded network.

A [Cr2Ni] coordination polymer: slow relaxation of magnetization in quasi-one-dimensional ferromagnetic chains

“…Into an equimolar solution of [Cr III 3O(OAc)6(H2O)3]NO3 . AcOH 8 and NiCl2 . 6H2O in MeOH were added equivalent amounts of aibH, 2-OH-naphthaldehyde and NEt3.…”