Solvent p arameters effect on the rate constant of the solvolysis of ۲-chlor o, ۲-meth yl propan e in aqueous soluti on of alcohols

solvent is one of th e components of the reaction and determining factor of reaction rate. The solubility rate of a solute in the solvent significantly depends to th e nature and strength of the attractive forces betw een solute- solute, solvent - solvent and solute – solvent. for measurement of reaction rate, reactant or product concentration can be f ollowed as a function of time [۱]. D ue to extensive interactions of solvent – solute, solute- solute to define solvent polarity, experim ental scales such as solva chromic Dymurt - Richard (ET) an d Kamlet - Taft parameters can be used. Solvatochromic parameters Kam let - Taft in dicate dipole / polarizability,π*, hydrogen bonding donor ,a, hydrogen bonding acc eptor, β, [۲]. Other sol vatochromic parameter is the norm alized polarity ,Dymort – Richard, (E TN). Solvolysis is one of the reactions that solvent is directly influence, The purpose of this research is comparison of the s olvent effect on the ra te of solvolysis reaction, - chloro ۲ - methyl propane (t-BuCl) in different mole fractions of water and methanol, water and ethanol and water, a nd ۲ – propanol

کلیدواژه ها:

۲-chloro ، ۲-methyl pro pane ، Rate constant ، Solvatochromic parameters ، Solvolysis.