Spectroscopic and kinetic evidences for the formation of a 1∶1 mixed complex of MoV and VIV in perchloric medium

The kinetics of interaction of Mo2Oinf4sup2+ with VO2+ was studied in HC1O4 medium at 25° C and ionic strength of 2 M by the stopped-flow technique. Under conditions of excess VO2+ a reaction mechanism is proposed to account for the observed pseudo-first order kinetics. For the overall process, 1/2...

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Autores principales: Mártire, Daniel Osvaldo, Féliz, Mario Rubén, Capparelli, Alberto Luis
Formato: Articulo
Lenguaje:Inglés
Publicado: 1994
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Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/134319
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Sumario:The kinetics of interaction of Mo2Oinf4sup2+ with VO2+ was studied in HC1O4 medium at 25° C and ionic strength of 2 M by the stopped-flow technique. Under conditions of excess VO2+ a reaction mechanism is proposed to account for the observed pseudo-first order kinetics. For the overall process, 1/2 [Mo2O4(H2O)6]2+ + VO2+⇋C + H+, the equilibrium constant (K = 33 M1/2) was determined by absorbance measurements.