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Diruthenium tetraacetate chloride
Names
	IUPAC name Ruthenium(II,III) acetate chloride
	Other names Tetrakis(mu-(acetato-O:O'))chlorodiruthenium
Identifiers
CAS Number	38833-34-0 ;
3D model (JSmol)	Interactive image;
ChemSpider	64886095;
EC Number	254-144-6;
PubChem CID	76871777;
	InChI InChI=1S/4C2H4O2.ClH.2Ru/c41-2(3)4;;;/h41H3,(H,3,4);1H;;/q;;;;;;+1/p-1 Key: LLHUCACCCSUOKG-UHFFFAOYSA-M;
	SMILES CC(=O)O.CC(=O)O.CC(=O)O.CC(=O)O.Cl[Ru].[Ru];
Properties
Chemical formula	C8H12ClO8Ru2
Molar mass	473.77 g·mol−1
Appearance	red-brown solid
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Diruthenium tetraacetate chloride is the coordination polymer with the formula {[Ru₂(O₂CCH₃)₄]Cl}_n. A red brown solid, the compound is obtained by the reduction of ruthenium trichloride in acetic acid.^[1] The compound has attracted much academic interest because it features a fractional metal-metal bond order of 2.5.^[2]

The [Ru₂(O₂CCH₃)₄]⁺ core adopts the Chinese lantern structure, with four acetate ligands spanning the Ru₂ center. The Ru-Ru distance is 228 pm.^[3]^[4] The [Ru₂(O₂CCH₃)₄]⁺ units are linked by bridging chloride ligands.

References

^ Mitchell, Robert W.; Spencer, Alwyn; Wilkinson, Geoffrey (1973). "Carboxylato-Triphenylphosphine complexes of Ruthenium, Cationic Triphenylphosphine Complexes Derived from Them, and Their Behaviour as homogeneous hydrogenation Catalysts for Alkenes". Journal of the Chemical Society, Dalton Transactions (8): 846. doi:10.1039/DT9730000846.
^ Aquino, Manuel A.S. (1998). "Diruthenium and Diosmium Tetracarboxylates: Synthesis, Physical Properties and Applications". Coordination Chemistry Reviews. 170: 141–202. doi:10.1016/S0010-8545(97)00079-9.
^ Cotton, F.Albert; Kim, Youngmee; Ren, Tong (1993). "Molecular Structure and Magnetic Properties of a Linear Chain Compound, Ru₂(O₂CCMePh₂)₄Cl". Polyhedron. 12 (6): 607–611. doi:10.1016/S0277-5387(00)84975-X.
^ Martin, Don S.; Newman, Robert A.; Vlasnik, Lynn M. (1980). "Crystal structure and polarized electronic spectra for diruthenium tetraacetate chloride". Inorganic Chemistry. 19 (11): 3404–3407. doi:10.1021/ic50213a038. ISSN 0020-1669.