Published May 2000 | Version v1
Journal article Metadata-only

The determination of the stoichiometry of the mixed complex of vanadium with hydrogen peroxide and with 4-(2-pyridylazo) resorcinol

Creators

  • 1. Nankai Univ., TJ (China). Dept. of Chemistry
  • 2. Universidade Estadual de Campinas, SP (Brazil). Inst. de Quimica

Description

The present study reports details of the stoichiometric characterization of the mixed complex system, V(H2 O2)PAR, formed when vanadium adequately reacts with hydrogen peroxide and with 4(2-Pyridylazo) Resorcinol. Also the presence of polynuclear species was investigated in order to elucidate about unambiguous assignment of the molar absorptivity, stability constant and composition of the complex. Two mathematical treatments methods of the experimental results were employed. From the results it can be concluded that this system corresponds to a mononuclear complex with 1:1:1 stoichiometry. (author)

Additional details

Publishing Information

Journal Title
Quimica Nova
Journal Volume
23
Journal Issue
3
Journal Page Range
p. 316-319
ISSN
0100-4042
CODEN
QUNODK

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
31062829
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ABSORPTIVITY; HYDROGEN PEROXIDE; LIGANDS; MATHEMATICAL MODELS; PYRIDYLAZORESORCINOL; QUANTITATIVE CHEMICAL ANALYSIS; SPECTROPHOTOMETRY; STOICHIOMETRY; VANADIUM; VANADIUM COMPLEXES
Descriptors DEC
AROMATICS; AZINES; CHEMICAL ANALYSIS; COMPLEXES; DIAZO COMPOUNDS; ELEMENTS; HETEROCYCLIC COMPOUNDS; HYDROGEN COMPOUNDS; HYDROXY COMPOUNDS; METALS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; OXYGEN COMPOUNDS; PEROXIDES; PHENOLS; PHYSICAL PROPERTIES; POLYPHENOLS; PYRIDINES; REAGENTS; SURFACE PROPERTIES; TRANSITION ELEMENT COMPLEXES; TRANSITION ELEMENTS

Optional Information

Notes
13 refs., 4 figs., 4 tabs.; tubino@iqm.unicamp.br; adriana@iqm.unicamp.br