Diruthenium tetraacetate chloride is the

coordination polymer Coordination may refer to: * Coordination (linguistics), a compound grammatical construction * Coordination complex, consisting of a central atom or ion and a surrounding array of bound molecules or ions ** A chemical reaction to form a coordinat ...

with the formula _n. A red brown solid, the compound is obtained by the reduction of

ruthenium trichloride Ruthenium(III) chloride is the chemical compound with the formula RuCl3. "Ruthenium(III) chloride" more commonly refers to the hydrate RuCl3·''x''H2O. Both the anhydrous and hydrated species are dark brown or black solids. The hydrate, with a var ...

acetic acid Acetic acid , systematically named ethanoic acid , is an acidic, colourless liquid and organic compound with the chemical formula (also written as , , or ). Vinegar is at least 4% acetic acid by volume, making acetic acid the main compone ...

. The compound has attracted much academic interest because it features a fractional metal-metal bond order of 2.5. The u₂(O₂CCH₃)₄sup>+ core adopts the

Chinese lantern structure In chemistry, the Chinese lantern structure is a coordination complex where two metal atoms are bridged by four Denticity, bidentate ligands. This structure type is also known as a paddlewheel complex. Examples include chromium(II) acetate, molybd ...

, with four

acetate An acetate is a salt formed by the combination of acetic acid with a base (e.g. alkaline, earthy, metallic, nonmetallic, or radical base). "Acetate" also describes the conjugate base or ion (specifically, the negatively charged ion called ...

ligand In coordination chemistry, a ligand is an ion or molecule with a functional group that binds to a central metal atom to form a coordination complex. The bonding with the metal generally involves formal donation of one or more of the ligand's el ...

s spanning the Ru₂ center. The Ru-Ru distance is 228 pm. The u₂(O₂CCH₃)₄sup>+ units are linked by

bridging chloride ligand In coordination chemistry, a bridging ligand is a ligand that connects two or more atoms, usually metal ions. The ligand may be atomic or polyatomic. Virtually all complex organic compounds can serve as bridging ligands, so the term is usually r ...

References

{{Acetates Ruthenium compounds Acetates Dimers (chemistry) Chemical compounds containing metal–metal bonds Mixed valence compounds Chloro complexes Coordination polymers