Electrophilic catalysis in nucleophilic substitution and elimination. VII. Kinetics and mechanism of reaction of neopentyl iodide with tetraethylammonium and silver nitrates and perchlorates in acetonitrile

1975 ◽  
Vol 97 (24) ◽  
pp. 7097-7104 ◽  
Author(s):  
Y. Pocker ◽  
Wah-Hun Wong
Keyword(s):  
Nucleophilic Substitution ◽  
Kinetics And Mechanism ◽  
Mechanism Of Reaction

scholarly journals Synthesis, kinetics and mechanism of nucleophilic substitution in octahedral (cat)2Sn(py)2

2005 ◽  
Vol 70 (12) ◽  
pp. 1389-1393 ◽  
Author(s):  
K.S. Siddiqi ◽  
Shahab Nami
Keyword(s):  
Nucleophilic Substitution ◽  
Rate Constant ◽  
Substitution Reaction ◽  
Molar Conductance ◽  
Chloride Ions ◽  
Kinetics And Mechanism ◽  
Nucleophilic Substitution Reaction ◽  
Nucleophilic Reagents

Dicatecholatodipyridinetin(IV) in nitrobenzene showed an increase in molar conductance with time, suggesting solvation of the complex. In the presence of nucleophilic reagents, such as SOCl2, C6H5COCl and CH3COCl, the conductance increased sharply owing to the substitution of pyridine by chloride ions. The data for the rate constant of solvation (k s) and for nucleophilic substitution (k 1 and k 2) have been calculated and it was found that the solvation is a slower process compared to the substitution by chloride ions, i.e., k1, k 2 > k s. The nucleophilic substitution reaction follows the SN1 mechanism.

scholarly journals Kinetics and Mechanism of the Redox Reaction Between Pt(IV) Chloride Complex Ions and Sodium Thiosulfate in Aqueous Solution. Part I: Acidic Solution/ Kinetyka I Mechanizm Reakcji Redox Pomiędzy Chlorkowymi Jonami Kompleksowymi Pt(Iv) I Tiosiarczanem Sodu W Roztworach Wodnych. Część I: Roztwór Kwaśny

2014 ◽  
Vol 59 (4) ◽  
pp. 1413-1420 ◽  
Author(s):  
K. Pacławski ◽  
J. Piwowonska
Keyword(s):  
Acidic Solution ◽  
Solid Phase ◽  
Sodium Thiosulfate ◽  
Chloride Complex ◽  
Elementary Step ◽  
Kinetics And Mechanism ◽  
Complex Ions ◽  
Mechanism Of Reaction ◽  
Entropy Of Activation ◽  
Enthalpy And Entropy

Abstract In this work, spectrophotometric studies of the kinetics and mechanism of reaction between [PtCl6]2- complex ions and sodium thiosulfate, were carried out. The influence of different conditions, such as: initial concentrations of reductant and platinum(IV) complex ions, ionic strength, pH and temperature on the rate constant, was experimentally determined. From the obtained results, the molecularity of the first elementary step, value of the enthalpy and entropy of activation in Eyring equation as well as corresponding rate equation, were experimentally determined. It was found that the reaction is relatively slow and leads to the S, Pt and PtS colloids formation. The best conditions for solid phase formation containing Pt are at pH = 5.

scholarly journals Kinetics and Mechanism of Reaction of cis-[Cr(C2O4)2(H2O)2]– with L-Dopa in Aqueous Medium: A Comparative Antiparkinsonian Studies

2017 ◽  
Vol 29 (7) ◽  
pp. 1555-1560
Author(s):  
Sudhanshu Sekhar Rout ◽  
Durga Madhab Kar ◽  
Sovan Pattanaik ◽  
Sudam Chandra Si ◽  
Prakash Mohanty
Keyword(s):  
Aqueous Medium ◽  
Kinetics And Mechanism ◽  
Mechanism Of Reaction
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