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

K. S. Siddiqi | Zendy; Shahab A.A. Nami | Zendy

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

Author(s) -

K. S. Siddiqi,

Shahab A.A. Nami

Publication year - 2005

Publication title -

journal of the serbian chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.227

H-Index - 45

eISSN - 1820-7421

pISSN - 0352-5139

DOI - 10.2298/jsc0512389s

Subject(s) - chemistry , solvation , nucleophilic substitution , nitrobenzene , pyridine , medicinal chemistry , chloride , substitution reaction , reagent , nucleophile , nucleophilic aromatic substitution , ion , inorganic chemistry , reaction rate constant , conductance , kinetics , computational chemistry , organic chemistry , catalysis , physics , mathematics , quantum mechanics , combinatorics

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 ,C 6H5COCl and CH3COCl, the conductan- ce increased sharply owing to the substitution of pyridine by chloride ions. The data for the rate constant of solvation (ks) and for nucleophilic substitution (k1 and k2) have been calculated and it was found that the solvation is a slower process com- pared to the substitution by chloride ions, i.e., k1, k2 > ks. The nucleophilic substitu- tion reaction follows the SN1 mechanism.

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