The Kinetics and Mechanism of Oxidation of Vanillin by Diperiodatonickelate(IV) in Aqueous Alkaline Medium

Chandrashekhar KATHARI; Pandurang POL; Sharanappa NANDIBEWOOR

Makale detayları

The Kinetics and Mechanism of Oxidation of Vanillin by Diperiodatonickelate(IV) in Aqueous Alkaline Medium

Yazarlar:

Chandrashekhar KATHARI | Pandurang POL | Sharanappa NANDIBEWOOR

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2002 Vol.26 Issue 2, pp.229-236

Belge Tipi:

Makale

Yayın Tarihi:

1/2002

Belge Dili:

Türkçe

Document ID (Org No.):

2000729954

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

Özet:

 

The title reaction was investigated in aqueous alkaline medium.  A  first order dependence in diperiodatonickelate (IV) (DPN) and an  apparent fractional order in both vanillin and alkali were obtained.   Periodate has a retarding effect on the reaction.  The effect of added  products and the ionic strength of the reaction medium have no  significant effect on the reaction rate.  A decrease in the dielectric  constant of the medium decreases the rate of reaction.  Effects of  temperature on the rate of reaction were studied.  A mechanism based  on experimental results was proposed, and constants involved in the  mechanism were evaluated.  A good agreement between the observed and  calculated rate constants at different experimental conditions was  obtained.

 

The title reaction was investigated in aqueous alkaline medium.  A  first order dependence in diperiodatonickelate (IV) (DPN) and an  apparent fractional order in both vanillin and alkali were obtained.   Periodate has a retarding effect on the reaction.  The effect of added  products and the ionic strength of the reaction medium have no  significant effect on the reaction rate.  A decrease in the dielectric  constant of the medium decreases the rate of reaction.  Effects of  temperature on the rate of reaction were studied.  A mechanism based  on experimental results was proposed, and constants involved in the  mechanism were evaluated.  A good agreement between the observed and  calculated rate constants at different experimental conditions was  obtained.

Makale detayları

The Kinetics and Mechanism of Oxidation of Vanillin by Diperiodatonickelate(IV) in Aqueous Alkaline Medium

Yazarlar: Chandrashekhar KATHARI | Pandurang POL | Sharanappa NANDIBEWOOR

Yayıncı: TUBITAK

Dergi: Turkish Journal of Chemistry 2002 Vol.26 Issue 2, pp.229-236

Belge Tipi: Makale

Yayın Tarihi: 1/2002

Belge Dili: Türkçe

Document ID (Org No.): 2000729954

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

Sayı

Yazarlar:

Chandrashekhar KATHARI | Pandurang POL | Sharanappa NANDIBEWOOR

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2002 Vol.26 Issue 2, pp.229-236

Belge Tipi:

Makale

Yayın Tarihi:

1/2002

Belge Dili:

Türkçe

Document ID (Org No.):

2000729954

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527