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Tag Archives: metal-ligand complexation
Alizarin Garnet R
Except for a few metal ions, most notably UO2+, most inorganic ions are not sufficiently fluorescent for a direct analysis. Many metal ions may be determined indirectly by reacting with an organic ligand to form a fluorescent, or less commonly, … Continue reading →
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Tagged fluorescence, metal-ligand complexation, spectroscopy
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Mole-Ratio Method for Determining Metal-Ligand Stoichiometry
An alternative to the method of continuous variations for determining the stoichiometry of metal-ligand complexes is the mole-ratio method in which the amount of one reactant, usually the moles of metal, is held constant, while the amount of the other reactant … Continue reading →
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Tagged metal-ligand complexation, mole-ratio method, spectroscopy
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Method of Continuous Variations
The method of continuous variations, also called Job’s method, is used to determine the stoichiometry of a metal-ligand complex. In this method we prepare a series of solutions such that the total moles of metal and ligand, ntotal, in each … Continue reading →
Posted in Illustration, Photo
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Tagged continuous variations, Job's method, metal-ligand complexation, spectroscopy
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EDTA
Structures of (a) EDTA, in its fully deprotonated form, and (b) in a six-coordinate metal–EDTA complex with a divalent metal ion.
Solubility of AgCl
Illustration showing the solubility of AgCl, SAgCl, as a function of pCl. The dashed red line shows SAgCl if one assumes incorrectly that the only relevant reaction is AgCl(s) ↔ Ag+(aq) + Cl–(aq) The solid blue curve is the actual solubility when considering … Continue reading →
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Tagged metal-ligand complexation, precipitation, solubility
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