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Two new oxidovanadium(V) complexes, [VOL1(HQ)] (1) and [VOL2(SAH)] (2), were prepared by the reaction of [VO(acac)2] (where acac = acetylacetonate) with N'-(3-ethoxy-2-hydroxybenzylidene)nicotinohydrazide (H2L1) and 8-hydroxyquinoline (HHQ), and N'-(2-hydroxy-4-methoxybenzylidene)nicotinohydrazide (H2L2) and salicylhydroxamic acid (HSAH), respectively, in methanol. Crystal and molecular structures of the complexes were determined by elemental analysis, infrared spectroscopy and single crystal X-ray diffraction. The V atoms in both complexes are in octahedral coordination. Thermal stability of the complexes was studied. Both complexes can decrease the blood glucose level in alloxan-diabetic mice, but the blood glucose level in the treated normal mice was not altered. 搜索 复制