title: Kinetics and Mechanism of Cationic Flexible Nanoparticles (CFN) - Catalyzed Piperidinolysis of Anionic Phenyl Salicylate: CFN = TTABr/MX/H2O with MX = NaCl, NaBr; CnH2n+1CO2Na, n = 4, 5, 6 and 7.
abstract: The present study is focused on the effect of the TTABr/MX/H2O-nanoparticles on the rate of piperidinolysis of ionized phenyl salicylate where TTABr represents tetradecyltrimethylammonium bromide and MX = NaCl, NaBr and CnH2n+1CO2Na with n = 4, 5, 6 and 7. Pseudo-first-order rate constant for the piperidinolysis of ionized phenyl salicylate at 35°C and constant concentration [PSa(-)]T = 0.2 mM, [Pip]T = 0.1 M, [NaOH] = 30 mM, [TTABr]T and different [MX] follow an empirical relationship which gives two empirical constant, (X)kcat and K(X/S). The value of relative counterion (X) binding constant, RX(Br) were calculated from the relationship; RX(Br) = (X)kcat/(Br)kcat. The values of RX(Br) for X = C4H9CO2(-), C5H11CO2(-), C6H13CO2(-), and C7H15CO2(-) are increasing with increase in the number of alkyl chain of counterion X.
authors: Department of Chemistry, Faculty of Science, University of Malaya.
authors: Muhammad Azri
authors: MA
authors: Mohd Noh
authors: Khalisanni
authors: K
authors: Khalid
authors: Azhar
authors: A
authors: Ariffin
authors: Mohammad Niyaz
authors: MN
authors: Khan
mesh_terms: D000838:Anions / Q000737:chemistry; D001959:Bromates / Q000737:chemistry*; D002384:Catalysis; D002412:Cations / Q000737:chemistry; D007700:Kinetics; D053758:Nanoparticles / Q000737:chemistry*; D012459:Salicylates / Q000737:chemistry*; D012965:Sodium Chloride / Q000737:chemistry*; D017670:Sodium Compounds / Q000737:chemistry*; D050337:Trimethyl Ammonium Compounds / Q000737:chemistry*
chemical_list: D000838:Anions; D001959:Bromates; D002412:Cations; D012459:Salicylates; D017670:Sodium Compounds; D050337:Trimethyl Ammonium Compounds; C026041:phenyl salicylate; D012965:Sodium Chloride; C060553:sodium bromate; C009410:tetradecyltrimethylammonium