Synthesis of two novel cyclic polyether-ester compounds and some comparisons of their reactions with sodium(1+), potassium(1+), and barium(2+) ions with those of 18-crown-6 and valinomycin

Izatt, Reed M.; Lamb, John D.; Maas, G.; Asay, R. E.; Bradshaw, Jerald S.; Christensen, James J.

doi:10.1021/ja00449a070

Cited by 71 publications

(29 citation statements)

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“…However, increased selectivity toward alkaline earth cations has been reported with some polyoxalactones [31]. The introduction of amide linkages in the polyether ring has also been reported to modify the binding properties of the crown compounds in favor of alkaline earth with respect to alkali metal ions [32 ± 35].…”

Section: Resultsmentioning

confidence: 99%

New Macrocyclic Diamides as Neutral Ionophores for Highly Selective and Sensitive PVC‐Membrane Electrodes for Be²⁺ Ion

et al. 2004

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Five recently synthesized macrocyclic diamides were investigated to characterize their ability as beryllium ion carriers in potentiometric PVC-membrane electrodes. The electrodes based on 1, 15-diaza-3,4;12,13-dibenzo-5,8,11-trioxabicyclo[13,2,2] heptadecane-2,14-dione exhibited a Nernstian response for Be 2 ion over wide concentration ranges (from 3.0 Â 10 À6 to 3.0 Â 10 À2 M for polymeric membrane electrode, PME, and from 5.0 Â 10 À7 to 2.0 Â 10 À2 M for coated glassy carbon electrode, CGCE) and very low detection limits (2.0 Â 10 À6 M for PME and 4.0 Â 10 À7 M for (CGCE). The electrodes possess low resistances, fast responses, satisfactory reproducibilities and, most importantly, good selectivities relative to a variety of other common cations. The potentiometric response of the electrodes is independent of pH of test solution in the pH range of 4.0 ± 7.5. The proposed sensors were used to determine beryllium ion in water samples.

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Section: Resultsmentioning

confidence: 99%

New Macrocyclic Diamides as Neutral Ionophores for Highly Selective and Sensitive PVC‐Membrane Electrodes for Be²⁺ Ion

et al. 2004

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“…However, increased selectivity toward alkaline earth cations were observed with some polyoxalactones [35]. Amide substitution in the cavity of benzocrown ethers may not only contribute to their cation selectivity toward some alkaline earth and transition metal ions but also allow the macrocycles to have properties more closely resembling those of naturally occurring ionophores [36].…”

Section: Resultsmentioning

confidence: 99%

Lead-selective poly(vinyl chloride) electrodes based on some synthesized benzo-substituted macrocyclic diamides

Kazemi

Shamsipur

Sharghi

2009

Journal of Hazardous Materials

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“…The substrate, 19-crown-6 malonate, was prepared according to the procedure described by Izatt et aZ. 4 The m.p., 65-66 "C, and 'H n.m.r. spectrum confirmed the identity of the product.…”

Section: Methodsmentioning

confidence: 99%

The influence of cation binding on the kinetics of the hydrolysis of a crown ether-like cyclic ester

Baker¹,

Gold²

1983

J. Chem. Soc., Perkin Trans. 2

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The initial rate of the reaction in 60 : 40 (v/v) dioxan-water between hydroxide ion and the cyclic diester (1,5,8,11 , I 4,17-hexaoxanonadecane-2,4-dione formed from malonic acid and pentaethylene glycol (3,6,9,12-tetraoxatetradecane-l ,I 4-diol) to give the acyclic half ester is found to be strongly increased by the addition of sodium chloride, potassium chloride, rubidium chloride, and caesium chloride in low concentration. The effect is analysed in terms of complex formation between substrate and metal ion, the complexed form having a higher reactivity. Approximate values of the equilibrium constant and rate constant involved are derived by a curve-fitting procedure. The ratio of the initial rate constants for reaction of complexed and uncomplexed ester is in accordance with the electrostatic attraction between the bound metal ion and the negative charge introduced by the attack of the hydroxide ion, provided the effective relative permittivity of the space between the two charges is taken to have a value close to the relative permittivity of the bulk solvent.

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Synthesis of two novel cyclic polyether-ester compounds and some comparisons of their reactions with sodium(1+), potassium(1+), and barium(2+) ions with those of 18-crown-6 and valinomycin

Cited by 71 publications

References 1 publication

New Macrocyclic Diamides as Neutral Ionophores for Highly Selective and Sensitive PVC‐Membrane Electrodes for Be²⁺ Ion

New Macrocyclic Diamides as Neutral Ionophores for Highly Selective and Sensitive PVC‐Membrane Electrodes for Be²⁺ Ion

Lead-selective poly(vinyl chloride) electrodes based on some synthesized benzo-substituted macrocyclic diamides

The influence of cation binding on the kinetics of the hydrolysis of a crown ether-like cyclic ester

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Synthesis of two novel cyclic polyether-ester compounds and some comparisons of their reactions with sodium(1+), potassium(1+), and barium(2+) ions with those of 18-crown-6 and valinomycin

Cited by 71 publications

References 1 publication

New Macrocyclic Diamides as Neutral Ionophores for Highly Selective and Sensitive PVC‐Membrane Electrodes for Be2+ Ion

New Macrocyclic Diamides as Neutral Ionophores for Highly Selective and Sensitive PVC‐Membrane Electrodes for Be2+ Ion

Lead-selective poly(vinyl chloride) electrodes based on some synthesized benzo-substituted macrocyclic diamides

The influence of cation binding on the kinetics of the hydrolysis of a crown ether-like cyclic ester

Contact Info

Product

Resources

About

New Macrocyclic Diamides as Neutral Ionophores for Highly Selective and Sensitive PVC‐Membrane Electrodes for Be²⁺ Ion

New Macrocyclic Diamides as Neutral Ionophores for Highly Selective and Sensitive PVC‐Membrane Electrodes for Be²⁺ Ion