Interaction of K2PdCl4 with aminoalkyldiphosphonic acids

Complexing of K 2 PdCl 4 with 3-amino-1-hydroxypropylidene-1,1-diphosphonic acid (AHPDP) and 1-aminoethylidene-1,1-diphosphonic acid (AEDP) was studied by pH titration, spectrophotometry, and 31 P NMR spectroscopy using metal to ligand mole ratios of 1: 1 and 1: 2. In equimolar complexes, AHPDP is c...

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Published inRussian journal of inorganic chemistry Vol. 56; no. 9; pp. 1494 - 1500
Main Authors Kozachkova, A. N., Dudko, A. V., Tsaryk, N. V., Trachevskii, V. V., Rozhenko, A. B., Pekhn’o, V. I.
Format Journal Article
LanguageEnglish
Published Dordrecht SP MAIK Nauka/Interperiodica 01.09.2011
Subjects
Chemistry
Chemistry and Materials Science
Inorganic Chemistry
Ligands
Moles
Nitrogen atoms
NMR spectroscopy
Oxygen atoms
Physical Chemistry of Solutions
Spectrophotometry
Titration
Phosphonic Group
Diphosphonic Acid
Palladium
Formation Constant
Bidentate Mode
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Summary:Complexing of K 2 PdCl 4 with 3-amino-1-hydroxypropylidene-1,1-diphosphonic acid (AHPDP) and 1-aminoethylidene-1,1-diphosphonic acid (AEDP) was studied by pH titration, spectrophotometry, and 31 P NMR spectroscopy using metal to ligand mole ratios of 1: 1 and 1: 2. In equimolar complexes, AHPDP is coordinated to palladium(II) via two phosphonic oxygen atoms, whereas AEDP is coordinated via the amino nitrogen atom and a phosphonic oxygen atom. In the bisligand palladium(II) complex with AEDP, both ligand molecules are coordinated in a bidentate mode by the amino nitrogen atom and a phosphonic oxygen atom.
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ISSN:0036-0236
1531-8613
DOI:10.1134/S0036023611040140