499-57-0Relevant academic research and scientific papers
Synthesis, Characterization, and Antibacterial Activity of Cd(II) Complexes with 3-/4-Fluorobenzoates and 3-Hydroxypiridine as Co-Ligands
Murat, Durman,Mustafa, Sertcelik
, (2020)
Abstract: In this study, two new complexes of Cd(II) 4-fluorobenzoate (4-FB)/3-fluorobenzoate (3-FB) with 3-hydroxypyridine (3-HPY) have been synthesized and structural characterizations have been performed by using elemental analysis, FT-IR spectroscopy,
Determination of an ion exchange constant by the use of a kinetic probe: A new semiempirical kinetic approach involving the effects of 3-F- and 4-F-substituted benzoates on the rate of piperidinolysis of anionic phenyl salicylate in aqueous cationic micelles
Yusof, Nor Saadah M.,Khan, M. Niyaz
, p. 10627 - 10635 (2010)
Pseudo-first-order rate constants (kobs) for the nucleophilic substitution reaction of piperidine (Pip) with ionized phenyl salicylate (PS-), obtained at a constant [Pip]T (= 0.1 M), [PS -]T (= 2×10-4 M), [CTABr]T (cetyltrimethylammonium bromide), ≤0.06 M NaOH, and a varying concentration of MX (= 3-FC6H4CO2Na, 3-FBzNa and 4-FC 6H4CO2Na, 4-FBzNa), follow the kinetic relationship kobs = (k0 + θKX/S[MX])/(1 + KX/S[MX]) which is derived by the use of the pseudophase micellar (PM) model coupled with an empirical equation. The empirical equation explains the effects of [MX] on CTABr micellar binding constant (KS) of PS- that occur through X-/PS- ion exchange. Empirical constants θ and KX/S give the parameters F X/S and KX/S, respectively. The magnitude of F X/S gives the measure of the fraction of micellized PS- transferred to the aqueous phase by the limiting concentration of X- through X-/PS- ion exchange. The values of FX/S and KX/S have been used to determine the usual thermodynamic ion exchange constant (KXY) for ion exchange process X -/Y- on the CTABr micellar surface. The values of K XBr (where Br = Y) have been calculated for X = 3-FBzNa and 4-FBzNa. The mean values of KXBr are 12.8 ± 0.9 and 13.4 ± 0.6 for X- = 3-FBz- and 4-FBz -, respectively. Nearly 3-fold-larger values of KX Br for X = 3-FBz- and 4-FBz- than those for X = Bz-, 2-ClBz-, 2-CH3Bz-, and the 2,6-dichlorobenzoate ion (2,6-Cl2Bz-) are attributed to the presence of wormlike micelles in the presence of >50 mM 3-FBz- and 4-FBz- in the [CTABr]T range of 5-15 mM. Rheological properties such as shear thinning behavior of plots of shear viscosity versus the shear rate at a constant [3-FBz-] or [4-FBz-] as well as shear viscosity (at a constant shear rate) maxima as a function of the concentrations of 3-FBz- and 4-FBz- support the conclusion, derived from the values of KXBr, for the probable presence of wormlike/viscoelastic micellar solutions under the conditions of the present study.
The superiority of the classical synthesis compared to the hydrothermal synthesis upon the structural, optical absorption and fluorescent properties of new Cd(II) 3-fluorobenzoate complexes with Pyridine-3-carboxamide/Pyridine-3-carboxylate
?ztürkkan ?zbek, Füreya Elif,?ahin, Ertan,Elmal?, Ayhan,Sert?elik, Mustafa,Yüksek, Mustafa
, (2020)
Three new cadmium–3-fluorobenzoate complexes with pyridine-3-carboxamide/pyridine-3-carboxylate complexes, namely, [Cd2(C7H4FO2)4(C6H6N2O)2(H2O)
