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The title compound crystallizes in the space group C_i~1-Pī with cell constants a=9.589, b=10.486, c=11.139, α=103.27° β=98.20° and γ=103.16°. After deriving the position parameters of all V atoms by Patterson method, the coordiuates of all the non-hydrogen and hydrogen atoms were obtained from successive Fourier and difference syntheses, and the leastsquares refinement for all atoms gave a final discrepancy factor R=0.0279. The chemical content within a unit cell has been identified definitely as (Na~+)_2·(H_2V_(10)O_(28)~(4-))·2((CH_2)_6N_3N-H~+)·8H_2O.
The title compound crystallizes in space group C_i ~ 1-Pī with cell constants a = 9.589, b = 10.486, c = 11.139, α = 103.27 ° β = 98.20 ° and γ = 103.16 °. After deriving the position parameters of all V atoms by Patterson method, the coordiuates of all the non-hydrogen and hydrogen atoms were obtained from successive Fourier and difference syntheses, and the least squares refinement for all atoms gave a final discrepancy factor R = 0.0279. The chemical content within a unit cell has been It was confirmed that the as (Na ~ +) _2 · (H_2V_ (10) O_ (28) ~ (4 -)) · 2 ((CH_2) _6N_3N-H ~ +) · 8H_2O.