VANADIUM(III) COMPLEXES IN AQUEOUS SOLUTION WITH THE DICARBOXYLIC OXALIC, MALONIC AND SUCCINIC ACIDS

The complex species formed in aqueous solution (25 °C, I = 3.0 mol.dm-3 KCl ionic medium) between V3+ cation and the dicarboxylic acids oxalic, malonic and succinic (H2L) have been studied potentiometrically. The application of the least-squares computer program LETAGROP to the experimental (emf H)...

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Autores principales: BRIUCAL,JULIO, LUBES,VITO, ARAUJO,MARY LORENA, BRITO,FELIPE
Lenguaje:English
Publicado: Sociedad Chilena de Química 2004
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072004000400003
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spelling oai:scielo:S0717-970720040004000032005-09-13VANADIUM(III) COMPLEXES IN AQUEOUS SOLUTION WITH THE DICARBOXYLIC OXALIC, MALONIC AND SUCCINIC ACIDSBRIUCAL,JULIOLUBES,VITOARAUJO,MARY LORENABRITO,FELIPE Vanadium(III) complexes Solution equilibria Potentiometric studies Stability constants Speciation The complex species formed in aqueous solution (25 °C, I = 3.0 mol.dm-3 KCl ionic medium) between V3+ cation and the dicarboxylic acids oxalic, malonic and succinic (H2L) have been studied potentiometrically. The application of the least-squares computer program LETAGROP to the experimental (emf H) data, taking into account the hydrolytic species of V3+ ion, indicates that under the experimental conditions employed the complexes [VHL]2+, [VL]+, [V(OH)L], [V(OH)2L]-, [VL2]-, [V(OH)L2]2-, [VL3]3- and [V(OH)L3]4- with oxalic acid, the complexes [VHL]2+, [VL]+, [VL2]-, [V(OH)L2]2-, [V(OH)2L2]3-, [VL3]3- and [V(OH)L3]4- with malonic acid, and the [VL]+ and [V(OH)L] complexes with succinic acid were formed. The stability constants of the complexes formed were determinedinfo:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.49 n.4 20042004-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072004000400003en10.4067/S0717-97072004000400003
institution Scielo Chile
collection Scielo Chile
language English
topic Vanadium(III) complexes
Solution equilibria
Potentiometric studies
Stability constants
Speciation
spellingShingle Vanadium(III) complexes
Solution equilibria
Potentiometric studies
Stability constants
Speciation
BRIUCAL,JULIO
LUBES,VITO
ARAUJO,MARY LORENA
BRITO,FELIPE
VANADIUM(III) COMPLEXES IN AQUEOUS SOLUTION WITH THE DICARBOXYLIC OXALIC, MALONIC AND SUCCINIC ACIDS
description The complex species formed in aqueous solution (25 °C, I = 3.0 mol.dm-3 KCl ionic medium) between V3+ cation and the dicarboxylic acids oxalic, malonic and succinic (H2L) have been studied potentiometrically. The application of the least-squares computer program LETAGROP to the experimental (emf H) data, taking into account the hydrolytic species of V3+ ion, indicates that under the experimental conditions employed the complexes [VHL]2+, [VL]+, [V(OH)L], [V(OH)2L]-, [VL2]-, [V(OH)L2]2-, [VL3]3- and [V(OH)L3]4- with oxalic acid, the complexes [VHL]2+, [VL]+, [VL2]-, [V(OH)L2]2-, [V(OH)2L2]3-, [VL3]3- and [V(OH)L3]4- with malonic acid, and the [VL]+ and [V(OH)L] complexes with succinic acid were formed. The stability constants of the complexes formed were determined
author BRIUCAL,JULIO
LUBES,VITO
ARAUJO,MARY LORENA
BRITO,FELIPE
author_facet BRIUCAL,JULIO
LUBES,VITO
ARAUJO,MARY LORENA
BRITO,FELIPE
author_sort BRIUCAL,JULIO
title VANADIUM(III) COMPLEXES IN AQUEOUS SOLUTION WITH THE DICARBOXYLIC OXALIC, MALONIC AND SUCCINIC ACIDS
title_short VANADIUM(III) COMPLEXES IN AQUEOUS SOLUTION WITH THE DICARBOXYLIC OXALIC, MALONIC AND SUCCINIC ACIDS
title_full VANADIUM(III) COMPLEXES IN AQUEOUS SOLUTION WITH THE DICARBOXYLIC OXALIC, MALONIC AND SUCCINIC ACIDS
title_fullStr VANADIUM(III) COMPLEXES IN AQUEOUS SOLUTION WITH THE DICARBOXYLIC OXALIC, MALONIC AND SUCCINIC ACIDS
title_full_unstemmed VANADIUM(III) COMPLEXES IN AQUEOUS SOLUTION WITH THE DICARBOXYLIC OXALIC, MALONIC AND SUCCINIC ACIDS
title_sort vanadium(iii) complexes in aqueous solution with the dicarboxylic oxalic, malonic and succinic acids
publisher Sociedad Chilena de Química
publishDate 2004
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072004000400003
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AT lubesvito vanadiumiiicomplexesinaqueoussolutionwiththedicarboxylicoxalicmalonicandsuccinicacids
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