Complexation of macrocyclic ligands with relatively non-solvated metal ions generated in dichloromethane by electrochemical oxidation of amalgam electrodes

Bobrowski, Andrzej; Bond, Alan M.; Ellis, S. Richard

doi:10.1016/s0020-1693(99)00270-4

Cited by 5 publications

(3 citation statements)

References 21 publications

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“…As expected from their radii, they all gave species with two crown ether ligands coordinated to the metal ion. Bobrowski et al examined the complexation of essentially nonsolvated cations including Cd 2+ with some crown ethers . They found that a strong complex of Cd 2+ was formed in dichloromethane with 12-C-4 and that the ratio of the ligand to cadmium ion in the complex is larger than 1:1.…”

Section: Resultsmentioning

confidence: 99%

“…Bobrowski et al examined the complexation of essentially nonsolvated cations including Cd 2+ with some crown ethers. 34 They found that a strong complex of Cd 2+ was formed in dichloromethane with 12-C-4 and that the ratio of the ligand to cadmium ion in the complex is larger than 1:1. ] serve not only as the spacer of the crystal packing, but also as a template for the formation of the two-dimensional layers.…”

Section: Transportation Of Cadmium Ions By Dp3n With and Without Irra...mentioning

confidence: 99%

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Temporary Crown Ether Compounds Induced by UV Irradiation

et al. 2002

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A new reversible photoresponsive system using a photophysical process is presented and proved in detail. 1,n-bis(3-(1-pyrenyl)propylcarboxy)oxaalkanes (DP3n: n ) 3 to 6), linear oligooxyethylenes with pyrenyl groups at both ends, were shown to form a relatively stable cyclic structure analogous to a crown ether in fluid solution during their photoexcited states, occurring due to the formation of an intramolecular excimer between two terminal pyrenyl groups. Moreover, DP34 molecules were found to capture and transport cadmium ions more effectively when they were irradiated. Accordingly, these compounds are referred to as photoinduced crown ether compounds (PICs) because they work as a crown ether when irradiated and they can select metal ions to capture according to their diameters. Our study is the first to attempt to use excimers to fix the conformation of a molecule for relatively long periods and to put this photophysical process to practical use.

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Section: Resultsmentioning

confidence: 99%

Section: Transportation Of Cadmium Ions By Dp3n With and Without Irra...mentioning

confidence: 99%

Temporary Crown Ether Compounds Induced by UV Irradiation

et al. 2002

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“…Depending on the mercury to metal ratio, liquid or solid amalgam is formed. Liquid amalgam is used similarly as mercury for classical dropping electrode or for stationary drop electrode [3,4]. Of solid amalgams, prosperous metal solid amalgam electrodes (MeSAE, where Me is Ag, Au, Ir, Cu, Bi and other metal) are prepared and used [5,6].…”

Section: Introductionmentioning

confidence: 99%

Working Electrodes from Amalgam Paste for Electrochemical Measurements

Yosypchuk

Šestáková

2008

Electroanalysis

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Paste electrode with paste amalgam as an active electrode material is described here for the first time. Designed electrode from silver paste amalgam (AgA-PE) is solely metallic and does not contain any organic binder. Mechanical surface regeneration of AgA-PE is performed in the same way as for classical carbon paste electrodes and reproducibility of such regeneration is about 10%. Electrochemical surface regeneration appeared very efficient for most measurements. In dependence on paste metal content, the electrode surface can be liquid (resembling a film) or rather solid. The hydrogen overvoltage on AgA-PE is high, and the electrode allows measurements at highly negative potentials. AgA-PE is well suited for study of reduction or oxidation processes without an accumulation step. Anodic stripping voltammetry of some metals tested on the electrode is influenced by formation of intermetallic compounds. The measurement based on cathodic stripping voltammetry (adenine, cysteine) and on catalytic processes from adsorbed state (complex of osmium tetroxide with 2,2'-bipyridine) can be performed on AgA-PE practically under the same conditions as found earlier for HMDE and for silver solid amalgam electrode. The working electrode from paste amalgam combines the advantages of paste and metal electrodes.

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Electrochemistry of Cadmium

Stroka

Maksymiuk

Galus

2006

Encyclopedia of Electrochemistry

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The sections in this article are Double‐layer Properties of Cadmium Electrodes Electrochemical Properties and Kinetics of the Cd ( II )/ Cd ( Hg ) Systems Electrochemistry in Aqueous Solutions Kinetics of Simple Ions Influence of a Catalyst Influence of Inhibitors Electrochemistry in Mixed and Nonaqueous Solvents Electrochemical Properties of the Cadmium Complexes Determination of Stability Constants Electrochemical Preparation of Cadmium Complexes Preparation and Electrochemical Properties of Cadmium Chalcogenides CdS CdSe Cd Te Properties of Cadmium Intermetallic Compounds Cadmium Underpotential Deposition and Electrodeposition on Solid Electrodes Deposition of Cd on Cadmium Electrode Electrodeposition of Cd on Other Solid Substrates Gold Platinum Silver Copper Silicon Other Substrates Passivation and Corrosion of Cadmium Passivation of Cadmium Electrode Corrosion of Cadmium Applied Electrochemistry Batteries Cadmium–Mercuric Oxide Primary Cells Cadmium–Nickel Oxide ( Ni – Cd ) Secondary Cells Cadmium–Silver Oxide Secondary Cells Application in Electrochemical Sensors Potentiometric Sensors Amperometric‐voltammetric Sensors

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Complexation of macrocyclic ligands with relatively non-solvated metal ions generated in dichloromethane by electrochemical oxidation of amalgam electrodes

Cited by 5 publications

References 21 publications

Temporary Crown Ether Compounds Induced by UV Irradiation

Temporary Crown Ether Compounds Induced by UV Irradiation

Working Electrodes from Amalgam Paste for Electrochemical Measurements

Electrochemistry of Cadmium

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