Reduction of vanadium(V) with ascorbic acid and isolation of the generated oxovanadium(IV) species

The interaction of sodium metavanadate and VOCl3 with ascorbic acid, one of the possible natural reducing agents of vanadium(V) to oxovanadium(IV), has been investigated. Three new VO2+ complexes could be isolated as microcrystalline powders. One of them, of composition K1.5Na0.5[VO(HAsc)(OH)3], con...

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Detalles Bibliográficos
Autores principales: Ferrer, Evelina Gloria, Baran, Enrique José
Formato: Articulo
Lenguaje:Inglés
Publicado: 2001
Materias:
Química
Vanadium(V)
ascorbic acid
oxovanadium(IV) complexes
spectroscopic characterization
thermal behavior
vanadium detoxification
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/145225
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-145225
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Vanadium(V)
ascorbic acid
oxovanadium(IV) complexes
spectroscopic characterization
thermal behavior
vanadium detoxification
spellingShingle Química
Vanadium(V)
ascorbic acid
oxovanadium(IV) complexes
spectroscopic characterization
thermal behavior
vanadium detoxification
Ferrer, Evelina Gloria
Baran, Enrique José
Reduction of vanadium(V) with ascorbic acid and isolation of the generated oxovanadium(IV) species
topic_facet Química
Vanadium(V)
ascorbic acid
oxovanadium(IV) complexes
spectroscopic characterization
thermal behavior
vanadium detoxification
description The interaction of sodium metavanadate and VOCl3 with ascorbic acid, one of the possible natural reducing agents of vanadium(V) to oxovanadium(IV), has been investigated. Three new VO2+ complexes could be isolated as microcrystalline powders. One of them, of composition K1.5Na0.5[VO(HAsc)(OH)3], contains ascorbic acid as a monodentate ligand. In the other two, K[VO(Diketo)(OH)] x H2O and Na3[VO(Diketo)2(OH)], the enolized form of 2,3-diketogulonic acid (one of the oxidation products of ascorbic acid), acts as a bidentate ligand. The complexes were characterized by means of electronic (absorption and reflectance) and infrared spectroscopy and magnetic susceptibility measurements. Their thermal behavior was investigated by thermogravimetric and differential thermal analyses. The interest of the investigated system in relation to vanadium detoxification is also discussed.
format Articulo
Articulo
author Ferrer, Evelina Gloria
Baran, Enrique José
author_facet Ferrer, Evelina Gloria
Baran, Enrique José
author_sort Ferrer, Evelina Gloria
title Reduction of vanadium(V) with ascorbic acid and isolation of the generated oxovanadium(IV) species
title_short Reduction of vanadium(V) with ascorbic acid and isolation of the generated oxovanadium(IV) species
title_full Reduction of vanadium(V) with ascorbic acid and isolation of the generated oxovanadium(IV) species
title_fullStr Reduction of vanadium(V) with ascorbic acid and isolation of the generated oxovanadium(IV) species
title_full_unstemmed Reduction of vanadium(V) with ascorbic acid and isolation of the generated oxovanadium(IV) species
title_sort reduction of vanadium(v) with ascorbic acid and isolation of the generated oxovanadium(iv) species
publishDate 2001
url http://sedici.unlp.edu.ar/handle/10915/145225
work_keys_str_mv AT ferrerevelinagloria reductionofvanadiumvwithascorbicacidandisolationofthegeneratedoxovanadiumivspecies
AT baranenriquejose reductionofvanadiumvwithascorbicacidandisolationofthegeneratedoxovanadiumivspecies
bdutipo_str Repositorios
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