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Vol. 30 No. 4 (2018): Vol 30 Issue 4

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A Kinetic Studies of Interaction of Ni(II) with d-2,2-(Ethylenediimino)-di-1-butanol

https://doi.org/10.14233/ajchem.2018.20987
Yogeshwar Sharma
Department of Chemistry, Motilal Nehru College, Benito Juarez Marg, University of Delhi South Campus, New Delhi-110 021, India
Harish C. Malhotra
Department of Chemistry, University of Delhi, Delhi-110 007, India
Gian C. Sharma
Department of Chemistry, Narmada College of Science & Commerce, Zadeshwar, Bharuch-392 011, India

Corresponding Author(s) : Yogeshwar Sharma

yogeshwar_sharma@rediffmail.com; ys.sharma63@gmail.com

Asian Journal of Chemistry, Vol. 30 No. 4 (2018): Vol 30 Issue 4

Abstract

The complexation kinetics between Ni(II) with d-2,2-(ethylenediimino)-di-1-butanol has been investigated at 25, 30, 35 and 40 ± 0.05 °C in the pH range 6.18-7.41 using Aminco Morrow stopped flow spectrophotometer. The ionic strength was maintained at 0.1 M KNO3. The anionic form of d-2,2-(ethylenediimino)-di-1-butanol is more reactive and the protonated form interacts only to a small extent. Kinetic results indicate that the ligand is not involved in the rate determining step which is, in fact, associated with the release of a water molecule from the shell of the metal ions prior to complexation with the ligand. Enthalpy, entropy of activation, energy of the molecule and heat of formation were also calculated. A mechanism consistent with the kinetic data has been suggested.

Keywords

Kinetics Complexation Nickel(II) complex Activation parameter
Sharma, Y., Malhotra, H. C., & Sharma, G. C. (2018). A Kinetic Studies of Interaction of Ni(II) with d-2,2-(Ethylenediimino)-di-1-butanol. Asian Journal of Chemistry, 30(4), 778–782. https://doi.org/10.14233/ajchem.2018.20987
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