6533b829fe1ef96bd128a21c

RESEARCH PRODUCT

Conformational investigations of bis(α-aminoalkyl)phosphinic acids and studies of the stability of their complexes with Cu(II)

Rafał LatajkaMichał JewgińskiPaweł KafarskiPaweł KafarskiArtur KrężelArtur Mucha

subject

Aqueous solutionStereochemistryHydrogen bondChemistryOrganic ChemistryIntermolecular forcePotentiometric titrationNuclear magnetic resonance spectroscopyAnalytical ChemistryInorganic ChemistryPolymer chemistryMoleculeConformational isomerismSpectroscopyStoichiometry

description

Abstract Conformational investigations of a group of bis(α-aminoalkyl)phosphinic acids were performed by use of NMR spectroscopy and theoretical calculations. In the case of one of the studied compounds, substituted with aminobenzyl and amino(p-chlorobenzyl) moieties, a pH-dependent equilibrium between conformers, stabilized by intermolecular hydrogen bonds was observed. Potentiometric studies proved that these molecules formed stable complexes with copper(II) ions, where stoichiometry was 1:1 and 1:2 depending on pH of their aqueous solution.

yearjournalcountryeditionlanguage
2008-04-01Journal of Molecular Structure
https://doi.org/10.1016/j.molstruc.2007.07.019