Degradations of novel tetranuclear vanadyl glycollates to dinuclear species

作者：Jin, Wan-Ting; Li, Xing; Zhou, Zhao-Hui^*

来源：Polyhedron, 2017, 122: 99-104.

DOI：10.1016/j.poly.2016.11.019

• Glycollate
• Vanadyl
• Bipyridine
• Nickel phenanthroline
• Degradations

Novel tetranuclear vanadyl glycollates [Ni(phen)(3)](2)[(V4O4)-O-IV(glyc(6)]center dot 23H(2)O (1) and [Ni (phen)(3)](2)[(V4O4)-O-IV(glyc)(6)]center dot 16H(2)O (2) have been obtained through the capture of bulky nickel phenanthroline cation (H(2)glyc = glycollic acid, phen =1,10-phenanthroline), and the mixed-ligand complex [(V4O6)-O-IV(BlYc)(2)(bPY)(4)]center dot 6H(2)O (3) (bpy = 2,2'-bipyridine) was isolated with the addition of bpy under hydrothermal condition. Tetrameric 1 and 2 are easily oxidized to dimeric complex [Ni(phen)(3)] [(V2O4)-O-V(glyc)(2)]center dot 5H(2)O (4), while 3 with bipyridine is Stable. The degradation process was traced by IR and XRD experiment. 1-4 feature bidentate glycollate that chelates to vanadium atom through alpha-alkoxy and alpha-carboxy groups, which were full characterized by elemental analysis, TG, IR, UV-Vis, EPR, XRD and X-ray structural analyses. Bond valence calculation is also performed.

• 出版日期2017-1-28
• 单位厦门大学