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Introduction In 1844, one of the first Chromium(II) compounds was discovered, Cr2(O2CCH3)4·(H2O)2, chromium(II) acetate hydrate4. Chromium(II) acetate hydrate is recognized as being somewhat anomalous, as mononuclear Chromium(II) are typically blue or purple and paramagnetic while chromium(II) acetate hydrate is red and diamagnetic1. In chromium(II) acetate hydrate, chromium forms a dichromium (M-M bonded) complex, where chromium forms σ, π, and δ bonds. The structure had been reported to be similar to that of Cu2(O2CCH3)4(H2O2) with a Cr-Cr bond distance of 2.64Å1. Despite the compound being diamagnetic, such a large bond would not allow for substantial M-M bonding, implying the weakness of the σ, π, and δ bonds2. However, more recent studies have shown the reported distance only to be a rough estimate based upon the similar copper structures. A crystal structure study of the compound has shown the Cr-Cr distance to be 2.362Å3. The quadruple M-M interaction is shown to actually be a strong interaction, which has strong implications implying that M-M bonds may be important in the chemistry of metals of the first transition series as well as for the heavier metals3. Chromium(II) acet