Some investigations on new polyphosphates by the anion-exchange method
1Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812, Japan.
Talanta
|June 1, 1983
Summary
Researchers identified a new pentamer phosphate structure formed from ring hexamer hydrolysis. This P-P bonded phosphate was characterized using copper(II) complexation and anion-exchange chromatography.
Area of Science:
- Inorganic Chemistry
- Phosphorus Chemistry
Background:
- Dodecaoxohexaphosphoric(III) acid is a cyclic phosphorus compound.
- Hydrolysis of such compounds can lead to linear phosphate species with P-P bonds.
Purpose of the Study:
- To determine the structure of the pentamer phosphate produced from the hydrolysis of dodecaoxohexaphosphoric(III) acid (ring hexamer).
- To prepare and characterize salts of the newly identified hexamer and pentamer species.
Main Methods:
- Anion-exchange distribution method.
- Complex formation with copper(II) ions to aid separation and characterization.
Main Results:
- The structure of the pentamer was determined to be HPO(OH)PO(OH)PO(OH)PO(OH)PO(OH)H.
- Salts of both the hexamer and pentamer P-P bonded linear phosphorus anions were successfully prepared.
- The yield for each species was approximately 1 mole% of the starting material.
Conclusions:
- The hydrolysis of dodecaoxohexaphosphoric(III) acid yields a distinct pentameric phosphate structure with P-P bonding.
- The study successfully prepared and characterized salts of these novel phosphorus anions, contributing to the understanding of phosphorus chemistry.
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