Syntheses, molecular structures and properties of (Ph₄P)₂[<i>trans</i>-O₂RuCl₄]·CH₂Cl₂ and [(Ph₃P)₂N]₂[<i>tran</i>s-O₂RuCl₄]·CH<s

Abstract The two trans -Ru VI complexes, (Ph 4 P) 2 [ trans -O 2 RuCl 4 ]·CH 2 Cl 2 ( 1 ) and [(Ph 3 P) 2 N] 2 [ trans -O 2 RuCl 4 ]·CH 2 Cl 2 ( 2 ), were obtained in high yields by direct oxidation of RuCl 3 ·3H 2 O with NaIO 4 , followed by treatment with KOH and cation exchange reactions. The crystal structures of the two complexes were determined by single crystal X-ray diffraction. Complexes 1 and 2 both crystallize in the triclinic space groups P <m:math xmlns:m="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <m:mrow> <m:mover accent="true"> <m:mn>1</m:mn> <m:mo>‾</m:mo> </m:mover> </m:mrow> </m:math> $\overline{1}$ , with a = 9.9766(16), b = 11.0566(18), c = 12.566(2) Å, α = 69.354(2), β = 77.228(2), γ = 82.328(2)°, Z = 1 for complex 1 and a = 10.897(3), b = 12.402(4), c = 14.449(5) Å, α = 110.395(4), β = 91.853(4), γ = 98.500(4)°, Z = 1 for complex 2 . The two complexes were characterized by FT-IR, 1 H NMR, 31 P{H} NMR, and UV/Visible spectroscopies, and their electrochemical properties were also investigated.