Tetra-μ-acetato-κ8 O:O′-bis­[(3-cyano­pyridine-κN 1)ruthenium(II,III)](Ru—Ru) hexa­fluoridophosphate 1,2-dichloro­ethane monosolvate

• Published in: Acta crystallographica. Section E, Structure reports online Vol. 67; no. Pt 11; p. m1554
• Main Authors: Minaker, Samuel A., Wang, Ruiyao, Aquino, Manuel A. S.
• Format: Journal Article
• Language: English
• Published: International Union of Crystallography 22-10-2011
• Subjects: Metal-Organic Papers
• DOI: 10.1107/S1600536811041997
• EISSN: 1600-5368

The title compound, [Ru
2
(CH
3
CO
2
)
4
(C
6
H
4
N
2
)
2
]PF
6
·C
2
H
4
Cl
2
, was obtained
via
a rapid substitution reaction in 2-propanol whereby 3-cyano­pyridine replaces the axial water mol­ecules in the diaquatetra-μ-acetato-diruthenium(II,III) hexa­fluorido­phosphate starting material. The product rapidly precipated and crystals were grown from 1,2-dichloro­ethane. The 1,2-dichloro­ethane mol­ecule of solvation exhibits disorder with two different orientations [occupancy ratio 0.51 (6):0.49 (6)]. All three parts, the cation, the anion and the disordered solvent mol­ecule lie on crystallographic inversion centers. The Ru—Ru bond length of 2.2702 (6) Å fits nicely into the range seen for similar complexes and correlates well with the reduction potential of the complex and donor strength of the axial ligand, 3-cyano­pyridine, as postulated in a previous study [Vamvounis
et al.
(2000
▶
).
Inorg. Chim. Acta
,
305
, 87–98]. The 3-cyano­pyridine ligands orient themselves in an
anti
configuration with respect to each other and the Ru—Ru—N angle [174.27 (7)°] is close to being linear.