A Simple Assay for the Fluorometric Detection of Lithium Ions in Aqueous Solution

Gao, Jie; Rochat, Sébastien; Qian, Xuhong; Severin, Kay

doi:10.1002/chem.200903119

Cited by 29 publications

(17 citation statements)

References 46 publications

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“…Trinuclear [12]metallacrown-3 complexes utilize a known Li 1 receptor combined with a novel signalling mechanism. 70 The ternary complex with the trinuclear [12]metallacrown-3 complex acts as a ditopic receptor for Li 1 with the fluorescent dye 8-hydroxy-1,3,6-pyrenetrisulfonate (HPTS). The ensemble can sense for Li 1 within the pharmacological concentration range of 0.5 to 1.5 mM.…”

Section: Lithium (Li 1 )mentioning

confidence: 99%

Metal Ion Sensing for Biomedical Uses

Magri

Mallia

2013

Supramolecular Systems in Biomedical Fields

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Metal ions are essential for sustaining life. However, abnormal levels are related to many severe human illness including diabetes, cancer and neurodegenerative diseases. Luminescent molecules that are responsive to metal ions designed with the appropriate selectivity and sensitivity provide an invaluable method for monitoring the physiological and pathological consequences. Potential future applications of molecular systems able to perform multi-analyte sensing via ‘lab-on-a-molecule’ systems for medical and environmental diagnostics are also highlighted. This chapter provides a brief survey of the currently available luminescent molecules for detecting minerals.

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Section: Lithium (Li 1 )mentioning

confidence: 99%

Metal Ion Sensing for Biomedical Uses

Magri

Mallia

2013

Supramolecular Systems in Biomedical Fields

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“…In addition, a few derivatives for the fluorometric detection of Li + in water were designed. 17,18 However, practical analytical application of the metallacrowns has not been achieved to date.…”

Section: Introductionmentioning

confidence: 99%

Application of a Lithium-ion Selective Metallacrown to Extraction-Spectrophotometric Determination of Lithium in Saline Water

2018

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The solvent-extraction behavior of Li + and Na + with a Li + selective metallacrown, [{Ru(η 6 -3,5-dimethylanisole) (2,3-pyridinediolate)}3], was investigated in the presence of organic dye anions, 3′,3″,5′,5″-tetrabromophenolphthalein ethyl ester ([TBPE] -), 2,6-dichloroindophenolate, and picrate ([pic] -). Each alkali metal ion was extracted as a 1:1:1 ternary complex of the metal ion, metallacrown, and anion. The Li + /Na + extraction selectivity is anion dependent and highest with [pic] -. Therefore, we devised an extraction-spectrophotometric determination method for Li + in saline water based on the extraction of Li + using the metallacrown and [pic] -for high selectivity and subsequent replacement of [pic] -in the extracted species with [TBPE] -for high sensitivity. When applying this to artificial seawater samples containing known concentrations of Li + , a linear relationship was observed between the absorbance at 571 nm of the organic phase and the Li + concentration in the samples. By this method, the determination of Li + at the sub-ppm level in natural seawater is possible.

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“…Recently, organometallic crystal engineering has emerged as a new and fascinating discipline with dedicated reviews. In a pseudo-octahedral coordination, such as the one featuring d 6 low-spin arene-Ru(II) complexes, the aromatic ligand occupies three sites of coordination, as depicted in Figure 1. 4 The broad palette of metal nuclei, their different oxidation states and the consequently different reactivities allow to obtain a high number of combinations even using a single organic ligand, where each final material is characterized by its own physical chemical properties.…”

Section: Introductionmentioning

confidence: 99%

“…3 For crystal engineered molecular materials the advantages deriving from the use of coordination or organometallic compounds as building blocks stems from the exploitation of the different coordination geometries imposed by the chosen metal, giving rise to materials characterized by different crystalline frameworks and then properties. Supramolecular assemblies based on half-sandwich units have been described by several authors, and studied in different fields, such as supramolecular chemistry, 5 sensor arrays 6 and anticancer compounds. The intermolecular contacts responsible of the final crystalline framework can further be tuned, and in some cases amplified, by judicious choice of the co-ligands, i.e.…”

Section: Introductionmentioning

confidence: 99%

Fabricating organometallic wheel-and-axle compounds for the creation of dynamically porous crystalline materials

Bacchi

Pelagatti

2016

CrystEngComm

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A family of organometallic compounds has been designed based on half-sandwich ruthenium complexes [(arene)Ru(L)X2] (X=Cl, I); this showed dynamic host-guest properties towards volatile molecules, caused by small local reversible structural rearrangements. These features derive from the supramolecular organization of the compounds in the solid state, based on a so-called wheel-and-axle pattern, that is known to favour guest inclusion. The molecular features of the Ru complexes (arene size and shape, ligand size and chemical properties, halogen nature) were screened in order to optimize the final performances of the materials. The design strategy has proven to be succesful, affording materials capable to dynamically exchange volatile molecules by gas-solid processes and solid-solid transformations without loss of crystallinity.

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A Simple Assay for the Fluorometric Detection of Lithium Ions in Aqueous Solution

Cited by 29 publications

References 46 publications

Metal Ion Sensing for Biomedical Uses

Metal Ion Sensing for Biomedical Uses

Application of a Lithium-ion Selective Metallacrown to Extraction-Spectrophotometric Determination of Lithium in Saline Water

Fabricating organometallic wheel-and-axle compounds for the creation of dynamically porous crystalline materials

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