87922-21-2

Basic information

• Product Name: Creutz-Taube complex
• CAS NO: 87922-21-2
• Molecular Weight: 1380.58
• Mol File: 87922-21-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Creutz-Taube complex(CAS DataBase Reference)
• NIST Chemistry Reference: Creutz-Taube complex(87922-21-2)
• EPA Substance Registry System: Creutz-Taube complex(87922-21-2)

Safety Data

• Hazardous Substances Data: 87922-21-2(Hazardous Substances Data)

Upstream product

• 94780-98-0 (μ-pyrazine)decaamminediruthenium(II,III) pentachloride 
• 657-84-1 sodium tosylate 

Relevant articles and documents

The Creutz-Taube complex revisited: Crystallographic study of the electron-transfer series [(NH3)5Ru(pyz)Ru(NH3)5]n+ (n = 4-6)

The crystal and molecular structures of the following four compounds have been determined: [(NH3)5Ru(pyz)Ru(NH3)5](ZnCl 4)2 (pyz = pyrazine), [II,II], orthorhombic, Pcab, a = 11.348 (2) ?, b = 11.614 (2) ?, c = 22.144 (3) ?, Z = 4, R = 2.5% for 2178 reflections; [(NH3)5Ru(pyz)Ru(NH3)5]Cl 5·5H2O, [II,III], orthorhombic, Pnnm, a = 17.595 (2) ?, b = 11.308 (2) ?, c = 7.021 (1) ?, Z = 2, R = 2.4% for 1023 reflections; [II,III](tos)5·4H2O (100 K, tos = p-toluenesulfonate), triclinic, P1, a = 13.162 (3) ?, b = 15.116 (5) ?, c = 15.749 (5) ?, α = 106.96 (2)°, β = 94.40 (2)°, γ = 103.15 (2)°, Z = 2, R = 3.2% for 5304 reflections; [(NH3)5Ru(pyz)Ru(NH3)5]Cl 6·2H2O, [III,III], monoclinic, P21/n, a = 7.465 (2) ?, b = 11.401 (2) ?, c = 14.613 (2) ?, β = 79.60 (2)°, Z = 2, R = 2% for 2503 reflections. Important average distances are in the order [II,II], [II,III], [III,III]: Ru-N(pyz) = 2.013 (3), 1.991 (9), 2.15 (1) A;? Ru-NH3(trans) = 2.149 (3), 2.123 (7), 2.089 (1) ?; Ru-NH3(cis) = 2.132 (3), 2.112 (3), 2.101 (5) ?; C-N = 1.353 (4), 1.362(4), 1.341 (2) ?; C-C = 1.363 (5), 1.361 (5), 1.382(2) ?. The overall geometries of the binuclear ions in all four compounds are very similar and are adequately described by an eclipsed arrangement of the two mononuclear subunits, with the pyrazine plane bisecting the cis-Ru-NH3 bonds. The geometry of the [II,III] ion cannot be explained as the average of the geometries of [II,II] and [III,III]. The crystallographic results are compatible with two equivalent ruthenium atoms in the mixed-valence ion and demonstrate the significance of the ruthenium-pyrazine, t2g-π* bonding.