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3D model (JSmol)
  • monohydrate: InChI=1S/2C10H8N2.2ClH.H2O.Ru/c2*1-3-7-11-9(5-1)10-6-2-4-8-12-10;;;;/h2*1-8H;2*1H;1H2;/q;;;;;+2/p-2
  • dihydrate: InChI=1S/2C10H8N2.2ClH.2H2O.Ru/c2*1-3-7-11-9(5-1)10-6-2-4-8-12-10;;;;;/h2*1-8H;2*1H;2*1H2;/q;;;;;;+2/p-2
  • monohydrate: C1=CC=NC(=C1)C2=CC=CC=N2.C1=CC=NC(=C1)C2=CC=CC=N2.O.Cl[Ru]Cl
  • dihydrate: C1=CC=NC(=C1)C2=CC=CC=N2.C1=CC=NC(=C1)C2=CC=CC=N2.O.O.Cl[Ru]Cl
Molar mass 484.35 g·mol−1
Appearance dark green solid
Density 1.59 g/cm3
GHS labelling:
GHS07: Exclamation mark
H315, H319, H335
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

cis-Dichlorobis(bipyridine)ruthenium(II) is the coordination complex with the formula RuCl2(bipy)2, where bipy is 2,2'-bipyridine. It is a dark green diamagnetic solid that is a precursor to many other complexes of ruthenium, mainly by substitution of the two chloride ligands.[1] The compound has been crystallized as diverse hydrates.

Synthesis and structure[edit]

The complex is prepared by heating a DMF solution of ruthenium trichloride and bipyridine.[2]

With octahedral coordination geometry, the complex exists exclusively as the chiral cis isomer. The corresponding Ru(III) salts are also known.[3]


  1. ^ Sullivan, B. P.; Salmon, D. J.; Meyer, T. J. (1978). "Mixed Phosphine 2,2'-Bipyridine Complexes of Ruthenium". Inorganic Chemistry. 17 (12): 3334–41. doi:10.1021/ic50190a006.
  2. ^ Lay, Peter A.; Sargeson, Alan M.; Taube, Henry (1986). "Cis -Bis(2,2′-Bipyridine-N,N ′) Complexes of Ruthenium(III)/(II) and Osmium(III)/(II)". cis‐Bis(2,2′‐Bipyridine‐N,N′) Complexes of Ruthenium(III)/(II) and Osmium(III)/(II). Inorganic Syntheses. Vol. 24. pp. 291–299. doi:10.1002/9780470132555.ch78. ISBN 9780470132555.
  3. ^ Eggleston, Drake S.; Goldsby, Kenneth A.; Hodgson, Derek J.; Meyer, Thomas J. (1985). "Structural Variations Induced by Changes in Oxidation State and Their Role in Electron Transfer. Crystal and Molecular Structures of cis-[Ru(bpy)2Cl2].3.5H2O and cis-[Ru(bpy)2Cl2]Cl.2H2O". Inorg. Chem. 24 (26): 4573–4580. doi:10.1021/ic00220a029.