Satyanarayana, P. V. V.; Rao, Y. Nageswara; Rao, N. Nageswara, Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1985, vol. 24, # 1, p. 34 - 36
Cages with Tetrahedron-Like Topology Formed from the Combination of Cyclotricatechylene Ligands with Metal Cations
作者:Brendan F. Abrahams、Nicholas J. FitzGerald、Richard Robson
DOI:10.1002/anie.201000149
日期:2010.4.6
Cage the elephant: Anionic tetrahedral assemblies, formedfrom the combination of cyclotricatechylene anions with transition metal ions, such as vanadium (see picture), contain large internal cavities that can act as hosts for alkali metal ions and solvent molecules. With appropriate metal centers, the anionic units can be linked together to form highly symmetric coordination polymers (V blue, O red
Complexity of the Vanadium - Hydrogen Peroxide System
作者:G. KAKABADSE、H. J. WILSON
DOI:10.1038/180861a0
日期:1957.10
THE reaction of quinquevalent vanadium with hydrogen peroxide, which is a well-known spot test1 and the basis of a colorimetric2 and volumetric3 method for the estimation of vanadium, becomes rather complex on closer inspection. Depending upon concentrations and temperature of the reactants, this reaction can lead to four distinctly different forms.
Wet oxidation of organic matter employing perchloric acid at graded oxidation potentials and controlled temperatures
作者:G. Frederick Smith
DOI:10.1016/s0003-2670(00)87009-9
日期:——
in the wet ashing of organicmatter using boiling, controlled concentrations of perchlouc acid as oxidant Typical operative procedures and manipulations are discussed and a number of direct applications. to various types of materials has been demonstrated Cellulose, proteins, and sugars and materials predominating in these types, have been selected as best applicable examples Perchloricacid concntrations
The kinetics of the redox reactions of the peroxomonosulfate ion (HSO5−) with iron(II), vanadium(IV), cerium(III), chloride, bromide, and iodide ions were studied. Cerium(III) is only oxidized upon illumination by UV light and cerium(IV) is produced in a photoreaction with a quantum yield of 0.33 ± 0.03. Iron(II) and vanadium(IV) are most probably oxidized through one-electron transfer producing sulfate
Vanadium Complexes with Mixed <i>O</i>,<i>S</i> Anionic Ligands Derived from Maltol: Synthesis, Characterization, and Biological Studies
作者:Vishakha Monga、Katherine H. Thompson、Violet G. Yuen、Vijay Sharma、Brian O. Patrick、John H. McNeill、Chris Orvig
DOI:10.1021/ic0486926
日期:2005.4.1
with the V=O linkage perpendicular; the vanadium atom is slightly displaced from the basal plane [V(1) = 0.656(3) A, V(2) = 0.664(2) A]. All of the new complexes were screened for insulin-enhancing effectiveness in streptozotocin-induced diabetes in rats, and VO(tma)(2) was profiled metabolically for urinary vanadium and ligand clearance by GFAAS and ESIMS, respectively. The new vanadium complexes