Degradations of novel tetranuclear vanadyl glycollates to dinuclear species

Add time:08/09/2019    Source:sciencedirect.com

Novel tetranuclear vanadyl glycollates [Ni(phen)3]2[VIV4O4(glyc)6]·23H2O (1) and [Ni(phen)3]2[VIV4O4(glyc)6]·16H2O (2) have been obtained through the capture of bulky nickel phenanthroline cation (H2glyc = glycollic acid, phen = 1,10-phenanthroline), and the mixed-ligand complex [VIV4O6(glyc)2(bpy)4]·6H2O (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][VV2O4(glyc)2]·5H2O (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 α-alkoxy and α-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.

We also recommend Trading Suppliers and Manufacturers of vanadyl citrate (cas 16522-06-8). Pls Click Website Link as below: cas 16522-06-8 suppliers

Prev:α-Hydroxy coordination of mononuclear vanadyl citrate (cas 16522-06-8), malate and S-citramalate with N-heterocycle ligand, implying a new protonation pathway of iron–vanadium cofactor in nitrogenase
Next:Effects of sodium tungstate and vanadyl sulphate on the liberation of prostanoids of the mesenteric vascular bed in diabetic rats)