Issue 3, 1986

Notes. First synthesis and structural assessment of alkali-metal carbonatodioxoperoxouranate(VI) monohydrates, A2[UO2(O2)(CO3)]·H2O, and carbonato-oxodiperoxovanadate(V) trihydrates, A3[VO(O2)2(CO3)]·3H2O

Abstract

The complexes A2[UO2(O2)(CO3)]·H2O (A = Na or K) have been synthesised from the reaction of the product obtained by treating UO2(NO3)2·6H2O with AOH and AHCO3(ratio U : CO32–= 1:4) with an excess of 30% H2O2 at pH 7–8, and A3[VO(O2)2(CO3)]·3H2O (A = Na or K) have been synthesised by treating V2O5 with A2CO3(ratio V: CO32–= 1 :1.5) and an excess of 30% H2O2 at pH ca. 7. They were precipitated with ethanol. The occurrence of trans O[double bond, length half m-dash]U[double bond, length half m-dash]O and terminal V[double bond, length half m-dash]O in the [UO2(O2)(CO3)]2– and [VO(O2)2(CO3)]3– ions, respectively, and the presence of triangular bidentate O22– and chelated bidentate CO32– groups, have been ascertained from i.r. and laser Raman spectra. The complexes A2[UO2(O2)(CO3)]·H2O can be dehydrated at Ca. 100 °C, a temperature at which A3[VO(O2)2(CO3)]·3H2O starts to decompose.

Article information

Article type
Paper

J. Chem. Soc., Dalton Trans., 1986, 709-711

Notes. First synthesis and structural assessment of alkali-metal carbonatodioxoperoxouranate(VI) monohydrates, A2[UO2(O2)(CO3)]·H2O, and carbonato-oxodiperoxovanadate(V) trihydrates, A3[VO(O2)2(CO3)]·3H2O

J. K. Basumatary, M. K. Chaudhuri, R. N. D. Purkayastha and Z. Hiese, J. Chem. Soc., Dalton Trans., 1986, 709 DOI: 10.1039/DT9860000709

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