Synthesis and Preliminary Complexation Studies of Dialkylphosphorylthiourea and Guanidines

Synthesis and Preliminary Complexation Studies of Dialkylphosphorylthiourea and Guanidines

Organic compounds containing a 1-phosphoryl-2-aza-3-thiocarbonyl group (IIa) or a 1-phosphoryl-3-imino group (IIb-g) were prepared by a two phases reaction between dialkylphosphite and thiourea or the appropriate guanidine. The complexation studies carried out by UV titration method and conductivity...

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Veröffentlicht in:Phosphorus, sulfur, and silicon and the related elements sulfur, and silicon and the related elements, 1994-07, Vol.92 (1-4), p.1-9
Hauptverfasser: Lin, Whei Oh, Guimarātes, Carlos N., De Souza, Marcos C., Da Costa, Joāto B. N., Alt, Helmut G.
Format: Artikel
Sprache:eng
Schlagworte:
complexation studies
conductivity studies
Dialkylphosphoryl compounds
diisopropylphosphoryl guanidine
diisopropylphosphoryl thiourea
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Zusammenfassung:Organic compounds containing a 1-phosphoryl-2-aza-3-thiocarbonyl group (IIa) or a 1-phosphoryl-3-imino group (IIb-g) were prepared by a two phases reaction between dialkylphosphite and thiourea or the appropriate guanidine. The complexation studies carried out by UV titration method and conductivity measurements showed that these ligands complex metal ions like Cu 2+ , Co 2+ , Cd 2+ , Hg 2+ , Pb 2+ , Fe 3+ , Zn 2+ , Ni 2+ and Al 3+ in neutral solution.
ISSN:1042-6507
1563-5325
DOI:10.1080/10426509408021451