It was determined that this is because the hydrogen is shared between two phenolate moieties.
Comparison of the phenolate moiety for the sodium and tetramethylammonium salts.
This trend can be supported if one assumes non-protonated phenol as ligand, but not if phenolate coordination is considered.
Table-5 illustrates that in models 5 and 6 (with phenol and phenolate as axial ligands) the net spin density at the copper is partly due to contributions of two other d orbitals, leaving even less spin in the dx2-y2 - the orbital directly pushing spin density onto the nitrogens.
Bacterial isolates were further tested for the quantification of catechol-types phenolates
using the method as described by Reeves et al.
Part of a longstanding series that has published some 130 volumes offering comprehensive reviews on all aspects of specific functional groups, this two-volume set is the first dedicated to metal phenolates
40]), the phenol derivatives are oxidized to phenolates
in alkaline medium.
The reagent oxidizes the phenolates
and reduces the heteropoly acids, turning the sample blue.
For this purpose 10% alkaline water solution is used to extract phenols from the oil and toluene is used to extract neutral oxygen compounds from the intermediate phenolates
Being weak acids they are in a state of hydrolytic equilibrium with phenolates
, and therefore a portion of phenols remains in the treated oil.
Some petrol soluble potassium salts of organic acids or phenolates
are unstable in petrol ethanol blends.
Skibsted, Electron Transfer from Plant Phenolates
to Carotenoid Radical Cations.