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A new polyoxovanadate cluster, [NH_3(CH_2)_2NH_2(CH_2)_2NH_3]_4[VⅤ_6VⅣ_ 12O_ 42(PO_4)](PO_4)·2H_2O, has been synthesized and characterized by means of elemental analysis, IR spectrometry, EPR spectrometry, TG analysis and single crystal X-ray diffraction. This compound crystallizes in a monoclinic space group C2/c with a= 2.3912(5) nm, b=1.3002(3) nm, c=2.0172(4) nm, β=105.75(3)°, V=6.036(2) nm3, Z=2, R_1=0.0572, wR_2=0.1476. It has a superKeggin structure with a Keggin unit capped by six [VO_5] moieties on the pits on every side of the Keggin unit. The anti-tumor activity of the compound was estimated in three human tumor cell lines in vitro.
A new polyoxovanadate cluster, [NH_3 (CH_2) _2NH_2 (CH_2) _2NH_3] _4 [V_6VⅣ_12O_42 (PO_4)] (PO_4) · 2H_2O, has been synthesized and characterized by means of elemental analysis, IR spectrometry, EPR spectrometry, TG analysis This compound crystallizes in a monoclinic space group C2 / c with a = 2.3912 (5) nm, b = 1.3002 (3) nm, c = 2.0172 (4) nm, °, V = 6.036 (2) nm3, Z = 2, R_1 = 0.0572, wR_2 = 0.1476. It has a superKeggin structure with a Keggin unit capped by six [VO_5] moieties on the pits on every side of the Keggin unit. anti-tumor activity of the compound was estimated in three human tumor cell lines in vitro.