
Zeitschrift fur Anorganische und Allgemeine Chemie p. 1919 - 1923 (2004)
Update date:2022-08-04
Topics:
Da Silva, Carlos Fernando Barboza
Schwarz, Simon
Mestres, Montserrat Galceran
Lopez, Sonia Teijelo
Straehle, Joachim
The ruthenium(II) triazenido complex [RuCl(ClC6H 4N3C6H4Cl)(p-cymene)] (1) is obtained by the reaction of silver bis(p-chlorphenyl)triazenid with [RuCl 2(p-cymene)]2 in CH2Cl2, and forms air stable, orange yellow crystals. It crystallizes as 1·CH 2Cl2 in the orthorhombic space group Pbca with the lattice parameters a = 3134.3(3), b = 2105.7(2), c = 769.15(4) pm and Z = 8. In the diamagnetic mononuclear complex 1 the chelating triazenido ligand coordinates with the atoms N(1) and N(3). p-Cymene binds η6 with its C 6 ring. The reaction of the etherphosphane complex [RuCl 2(Ph2PCH2C4H7O 2)2] with 1,3-bis(p-tolyl)triazenid in THF yields the complex [RuCl(tolyl-N3-tolyl)(Ph2PCH2C 4H7O2)2] (2). 2 forms monoclinic, red crystals with the space group P21/c and a = 1521.0(2), b = 1451.8(2), c = 2073.7(2) pm, β = 99.29(1)° and Z = 4. It is air stable and diamagnetic. The triazenide ion coordinates with the atoms N(1) and N(3). One of the two etherphosphane ligands is chelating and coordinates with the P atom and one O atom, while the other ligand binds in a monodentate fashion with its P atom, resulting in a coordination number of six for the RuII. [Ag(tolyl-N5-tolyl)]2 reacts in THF with [RuCl 2(C6H6)]2 to afford the air stable, diamagnetic pentaazadienido complex [RuCl(tolyl-N5-tolyl)(C 6H6)] (3). 3 forms monoclinic, red crystals with the space group P21/c and a = 1462.4(1), b = 1056.51(8), c = 1371.4(1) pm, β = 114.36(1)° and Z = 4. The chelating pentaazadienido ligand coordinates with the atoms N(1) and N(3) at the divalent Ru atom. The benzene molecule binds η6 with its π system.
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