|
The crystal structure of bis(N-methylphenazinium) bis(oxalato)palladate(Ⅱ) has been determined by X-ray crystallography. Crystal data: (C13H11N2)2[Pd(C2O4)2] Mw = 672.93, Triclinic, Space Group P1 (No = 2), a = 7.616(8), b = 9.842(3), c = 20.335(7)Å, α = 103.53(3), β = 90.00(5), γ = 112.38(5)°, Z = 2, V = 1363(2)Å3, Dc = 1.639 gcm-3, μ= 7.3 cm-1, F(000) = 680.0. The intensity data were collected with Mo-Kα radiation (λ= 0.7107 Å) on an automatic four-circle diffractometer with a graphite monochromater. The structure was solved by Patterson method and refined by full matrix least-square methods using Killean & Lawrence weights. The final R and S values were R = 0.069, Rw = 0.050, Rall = 0.069 and S = 5.45 for 3120 observed reflections. Both cation and anion complexes are essentially planar and have dihedral angles of 6.3(6) and 57.06(6)°between their planes. The planar complex anions are sandwiched between slightly bent cations. The interplanar separations of two triads are 3.328 and 3.463 Å, respectively. The triads are stacked along b-axis, but their orientations are different based on dihedral angle 59.08(9)°of two complex anions.
|