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Tsagatakis, John K.; Chaniotakis, Nikos A.; Jurkschat, Klaus; Damoun, S.; Geerlings, Pau̧l; Bouhdid, Abdeslam; Gielen, Marcel; Verbruggen, Ingrid; Biesemans, Monique; Martins, José

doi:10.1002/(sici)1522-2675(19990407)82:4<531::aid-hlca531>3.3.co;2-x

Cited by 10 publications

(26 citation statements)

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“…[21,22] Electrochemical Measurement Apparatus Data were obtained using procedures described previously. [13] All potentiometric measurements were performed with a XENON CI-317, 8 channel Electrometer (Halandri, Athens, Greece), versus an ORION Res. (Beverly, MA, USA) 900200 double junction reference electrode.…”

Section: -Isopropylcinnamic Acid Triphenyltin Ester (Ictpt)mentioning

confidence: 99%

“…The preparation of the membranes is described elsewhere. [13] The internal solution of the electrodes for all membranes was 0.01 m KCl.…”

Section: -Isopropylcinnamic Acid Triphenyltin Ester (Ictpt)mentioning

confidence: 99%

“…Reversibility in the anion exchange has been shown to be essential for a significant electrode response. [13] The apparent lack of such a reversibility with the present polymers in the membrane would mean that chloride tends to saturate tin and lower its Lewis acidity more easily than the non-polymeric carriers, therefore inactivating its response. This reasonably excludes deactivation of the electrode by hydrolysis.…”

Section: Chloride Anion Recognition Propertiesmentioning

confidence: 99%

“…On the other hand, cinnamate tributyltin ester, C 6 H 5 CH2CHCOOSnBu 3 (CTBT), and its perfluorophenyl analogue, C 6 F 5 CH2CHCOOSnBu 3 (PFCTBT) are known to give potentiometric response to chloride when incorporated into a plasticized ion-selective membrane [13] or into liquid-membrane anion-selective electrodes. [14] A serious drawback of these electrodes is their short lifetimes, preventing real life applications and commercial exploitation.…”

Section: Introductionmentioning

confidence: 99%

“…The electrochemical response to chloride of the 4-vinyl cinnamate tributyltin ester (VCTBT) derivatives only is assessed, triphenyltin compounds having been shown previously to provide lower responses. [13] Several model compounds were likewise investigated under similar conditions, the above-mentioned CTBT, and its perfluorophenyl analogue, PFCTBT as well as ICTBT.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and Characterization of Polymeric Derivatives Containing Grafted Triorganotin Cinnamates with Electrochemical Chloride Response

Angiolini¹,

Salatelli

Caretti

et al. 2002

Macromol. Chem. Phys.

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Section: -Isopropylcinnamic Acid Triphenyltin Ester (Ictpt)mentioning

confidence: 99%

“…The preparation of the membranes is described elsewhere. [13] The internal solution of the electrodes for all membranes was 0.01 m KCl.…”

Section: -Isopropylcinnamic Acid Triphenyltin Ester (Ictpt)mentioning

confidence: 99%

Section: Chloride Anion Recognition Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Synthesis and Characterization of Polymeric Derivatives Containing Grafted Triorganotin Cinnamates with Electrochemical Chloride Response

Angiolini¹,

Salatelli

Caretti

et al. 2002

Macromol. Chem. Phys.

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Phosphate-Binding Characteristics and Selectivity Studies of Bifunctional Organotin Carriers

Tsagkatakis

Chaniotakis

Altmann

et al. 2001

HCA

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The selective recognition of the orthophosphate anion by a series of bifunctional Lewis acidic organotin compounds is investigated. The binding affinity of these carriers to anions, as measured by NMR titrations in CH 2 Cl 2 obeyed the potentiometric selectivity order phosphate b sulfate b perchlorate, and provided the corresponding complex-formation constants. More accurate calculations of these values were obtained by the segmented-sandwich-membrane method performed directly inside the liquid polymeric membrane. These carriers were also studied potentiometrically in polymeric liquid membranes. The results indicate that (PhBr 2 Sn) 2 CH 2 is 2 to 5 orders of magnitude more selective towards phosphate over other oxoanions. These results set the ground for the development of a new series of highly selective anions carriers with a wide range of possible applications.Introduction. ± The design of a phosphate-selective carrier for applications in ionselective electrodes (ISEs) [1 ± 3] is not an easy task for various reasons. Phosphate, in contrast to other oxoanions such as perchlorate, nitrate, carbonate, or even sulfate, is very hydrophilic [4 ± 5]. Additionally, it is large (PO 4 3À : 238 pm [6]), with a charge and chemical structure highly dependent on the pH. Its tetrahedral structure requires the use of a large, multifunctional substrate able to achieve a significant but reversible coordination. It is clear that, for a successful chemical recognition, the carrier used must have the following characteristics: appropriate topography, at least 2 ligation sites, and a labile interaction with the phosphate active sites (O-or H-atoms). Only under these conditions can complexation capable of overcoming the high-energy barrier of the phosphate transfer from the aqueous to organic phase be developed. Additionally, if these carriers are to be used in chemical sensors, the overall partitioning of the phosphate anion into the sensor-membrane phase should be larger than that of the other anions.

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Soluble Polystyrenes Functionalized by Triorgano[(1-oxoalkyl)oxy]stannanes (=Triorganotin Carboxylates): Synthesis, Structure, and Anion-Recognition Characteristics

Dalil¹,

Biesemans²,

Angiolini³

et al. 2002

HCA

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Polystyrene copolymers of the type (PÀH) 1Àx (PÀ(CH 2 ) n ÀCOOSnR 3 ) x containing [(1-oxoalkyl)oxy]triphenylstannane or tributyl[(1-oxoalkyl)oxy]stannanes as side chains (PÀH styrene; PÀ(CH 2 ) n ÀCOOSnR 3 para-substituted styrene-like monomeric unit with RPh (x 0.1), Bu (x 0.5); n 2 ± 4) were investigated. The tributyl[(1-oxoalkyl)oxy]stannane copolymer was prepared by direct conversion of the corresponding copolymeric methyl esters with hexabutyldistannoxane. By contrast, the [(1-oxoalkyl)oxy]triphenylstannane copolymer could be prepared only by a procedure involving two reaction steps consisting of a preliminary hydrolysis of the related methyl ester (PÀH) 1-x (PÀ(CH 2 ) n ÀCOOMe) x followed by functionalization of the corresponding poly(carboxylic acid) (PÀH) 1-x (PÀ(CH 2n ÀCOOH) x with hydroxytriphenylstannane. Attempts to directly convert the methyl ester with hydroxytriphenylstannane or hexaphenyldistannoxane led to the formation of uncompletely functionalized product. The structure of the stannane-functionalized polymers was investigated in solution and solid state by NMR, IR, and thermal analysis. The tributylstannane and triphenylstannane copolymers were assessed as chloride-selective anion carriers in polymeric-liquid-membrane potentiometric ion-selective electrodes.

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Cited by 10 publications

References 0 publications

Synthesis and Characterization of Polymeric Derivatives Containing Grafted Triorganotin Cinnamates with Electrochemical Chloride Response

Synthesis and Characterization of Polymeric Derivatives Containing Grafted Triorganotin Cinnamates with Electrochemical Chloride Response

Phosphate-Binding Characteristics and Selectivity Studies of Bifunctional Organotin Carriers

Soluble Polystyrenes Functionalized by Triorgano[(1-oxoalkyl)oxy]stannanes (=Triorganotin Carboxylates): Synthesis, Structure, and Anion-Recognition Characteristics

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