Oxo‐peroxokomplexe des Vanadiums(V)

Abstract

Die Komplexe K[VO(O2)2H2O], K3[VO(O2)2CO3], K3[VO(O2)2C2O4] und K3[VO(O2)(C2O4)2] · H2O wurden dargestellt. Zusammensetzung und IR‐Spektren der Verbindungen lassen auf eine monomere, pentagonal‐pyramidale oder pentagonal‐bipyramidale Konfiguration der Anionen schließen.

Racemic vanadium(v) oxo monoperoxo complexes with two achiral bidentate heteroligands. Synthesis, characterization, crystal structure and stereochemistry of K[VO(O2)(ox)(bpy)]·3H2O and Pr4N[VO(O2)(ox)(phen)]

“…Several bands corresponding to n(COO) stretchings in the deprotonated carboxylic group occur at 1647-1713 cm À1 for 1 and at 1655-1709 cm À1 for 2. The other bands are in agreement with data published for the oxalate anion 36,37 and for bpy (resp. phen).…”

Study of thermal properties of potassium μ-hydroxo-bis(oxo-diperoxovanadate)(V)

“…The results, both obtained in the study presented here and in [ 1] enabled us to describe the course of thermal decomposition of K3[OHIVO(O2)2}2]-H20 by Scheme 1. After partial release of oxygen from the coordinated peroxo groups and release of water, the coordinatively unsaturated fragments are formed.…”

“…K3[OH{ VO(O2)2 } 2]'H20 was prepared according to [ 1 ]. Vanadium(V) was determined by titration with iron(II) sulphate after the sample heated for a short time to release the peroxo oxygen.…”

“…The thermal decomposition of K3[OH{VO(O2)2}2].H20 was studied under isothermal conditions at 100~ in air atmosphere [1]. The stoichiometry of the thermal decomposition process in the presence of CO2 from air can be described by the Eq.…”

(EnH2)2[V2O2(O2)4(μ-C2O4)] — The vanadium(V) oxalato oxido peroxido complex with a bridging oxalato group

“…A series of oxido oxalato peroxido complexes of vanadium(V) has been prepared and characterised [11]: [9,[12][13][14], NH 4 [12], N(CH 3 ) 4 [15] [13,16], N(CH 3 ) 4 [15], N(C 2 H 5 ) 4 [15], Hampic [17] [18]. The anions in all structures contain seven coordinated vanadium centres and the geometry is distorted pentagonal bipyramid.…”