Search

Your search keyword '"Horvat, B"' showing total 2 results
Start Over Author "Horvat, B" Journal journal of pharmaceutical sciences
2 results on '"Horvat, B"'

1. Aqueous Mixture of Pyrrolidone‐5‐hydroxamic Acid‐Iron (III) Complexes: Isolation and Characterization of Tris(pyrrolidone‐5‐hydroxamato)iron (III)

Author

Pećar, M., Kujundžić, N., Mlinarević, B., Čerina, D., Horvat, B., and Verić, M.

Abstract

The published procedure for the synthesis of pyrrolidone‐5‐hydroxamic acid was improved. The acidity constant of the pyrrolidone‐5‐hydroxamic acid was determined as pKa = 8.65. In an aqueous solution of iron (III) ions, pyrrolidone‐5‐hydroxamic acid binds ferric ion, forming a mixture of mono‐, bis‐, and tris(pyrrolidone‐5‐hydroxamato)iron (III) complexes. These complexes were studied by potentiometric and spectrophotometric methods. The tris compound was isolated as dark orange‐red crystals and identified according to elemental analysis and IR spectral data as C15H21FeN6O9˙ 6H2O, having the magnetic moment of 5.67 B.M.

Published
1975
Full Text
View/download PDF

2. Aqueous mixture of pyrrolidone-5-hydroxamic acid-iron (III) complexes: isolation and characterization of tris (pyrrolidone-5-hydroxamato) iron (III).

Author

Pećar M, Kujundzić N, Mlinarević B, Cerina D, Horvat B, and Verić M

Subjects
Chemical Phenomena, Chemistry, Magnetic Resonance Spectroscopy, Potentiometry, Spectrophotometry, Atomic, Hydroxamic Acids, Iron Chelating Agents, Pyrrolidinones
Abstract

The published procedure for the synthesis of pyrrolidone-5-hydroxamic acid was improved. The acidity constant of the pyrrolidone-5-hydroxamic acid was determined as pKa = 8.65. In an aqueous solution of iron (III) ions, pyrrolidone-5-hydroxamic acid binds ferric ion, forming a mixture of mono-, bis-, and tris(pyrrolidone-5-hydroxamato)iron (III) complexes. These complexes were studied by potentiometric and spectrophotometric methods. The tris compound was isolated as dark orange-red crystals and identified according to elemental analysis and IR spectral data as C15H21FeN6O9.6H2O, having the magnetic moment of 5.67 B.M.

Published
1975
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results