Search results for "transition metal ion"

showing 4 items of 14 documents

Study of [2-(2’-pyridyl)imidazole] complexes to confirm two main characteristic thermoanalytical behaviors of transition metal complexes based on imi…

2016

Abstract Imidazole derivative ligands are recognized as useful models for biomimetic complexes. Among the inorganic–organic hybrid complexes, those with derivatives of imidazole heterocyclic N-donor ligands are interesting for their framework. In previous studies of complexes with imidazole derivative ligands, our group reported two main thermally induced decomposition behaviors supporting two different systematic decomposition trends. In this work, one of these characteristic decomposition mechanisms was again found. The final goal of these serial studies is the possibility to provide, by the experimental evidences, a prediction model of thermal stability and decomposition typical behavior…

biomimetic complexes; EGA; imidazole derivative complexes; TG-MS; transition metal ion complexes; chemical engineering (all); chemistry (all)Evolved gas analysisInorganic chemistrytransition metal ion complexes02 engineering and technology010402 general chemistryMass spectrometry01 natural sciencesAnalytical Chemistrychemistry.chemical_compoundEGATransition metalPolymer chemistryImidazoleMoleculeThermal stabilitySettore CHIM/01 - Chimica Analiticabiomimetic complexesimidazole derivative complexes transition metal ion complexes biomimetic complexes EGA TG-MS021001 nanoscience & nanotechnologyimidazole derivative complexesDecomposition0104 chemical scienceschemistry (all)Fuel Technologychemical engineering (all)chemistryTG-MSMethanol0210 nano-technology
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Coamplexation of mercury(II) compounds by crown ethers in organic media

1991

Complexes between crown ethers having ring sizes of 15–24 atoms and 5 to 8 oxygens with HgX2 species (X = Cl, I, CN, SCN) have been prepared and studied. Interactions of the substituents X bound to mercury with groups or fragments in the crown compound are essential in determining the characteristics and stability of the complexes formed. Complexes with crowns of 18C6 ring sizes are the most favourable except for HgX2 compounds for which the size of X is larger than the macrocycle ring, as is the case for X = CF3.

chemistry.chemical_classificationInorganic chemistrychemistry.chemical_elementGeneral ChemistryCondensed Matter PhysicsOrganic mediaTransition metal ionsMercury (element)chemistry.chemical_compoundchemistryDivalent metal ionsPolymer chemistryCrown etherFood ScienceCyclophaneJournal of Inclusion Phenomena and Molecular Recognition in Chemistry
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Transition metal ion induced hydrogelation by amino-terpyridine ligands

2014

Hydrogelation behavior of a new class of terpyridine based metallogelators are explored. The gelation and the gel morphology was found to be critically dependent on divalent metal ions, anions and on subtle structural changes on the gelator molecule.

chemistry.chemical_compoundchemistryLigandDivalent metal ionsOrganic ChemistryInorganic chemistryPolymer chemistryPhysical and Theoretical ChemistryTerpyridineBiochemistryta116Transition metal ionsOrganic and Biomolecular Chemistry
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Transition metal ion induced hydrogelation by amino-terpyridine ligands

2014

Hydrogelation behavior of two amino-terpyridine ligands in the presence of divalent metal ions in water was studied in detail. The effect of ligand structure and different counter anions on the gel morphologies was also explored. peerReviewed

hydrogelationamino-terpyridine ligandstransition metal ion
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