Share on vk Share on google_plusone_share Share on twitter Share on email More Sharing Services Synthesis, acid-base, and complexing properties of ethylenediaminetetra(O-alkyl)methylenephosphonic acids – the closest organophosphorus analogs of ethylenediaminetetraacetic acid
A number of new complexones – ethylenediaminetetra(O-alkyl)methylenephosphonic acids, the structurally related organophosphorus analogs of ethylenediaminetetraacetic acid – were synthesized. The acid-base and complexing properties of the obtained substances with alkaline-earth and transition metal i...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Kazan Federal University
2022-03-01
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| Series: | Учёные записки Казанского университета: Серия Естественные науки |
| Subjects: | |
| Online Access: | https://kpfu.ru/uz-eng-ns-2022-1-1.html |
| Summary: | A number of new complexones – ethylenediaminetetra(O-alkyl)methylenephosphonic acids, the structurally related organophosphorus analogs of ethylenediaminetetraacetic acid – were synthesized. The acid-base and complexing properties of the obtained substances with alkaline-earth and transition metal ions were studied by the methods of potentiometric titration and mathematical simulation. The following parameters were calculated: the ionization constants of the ligands, the stability and deprotonation constants of their 1:1 complexes with metal ions, and the distribution of the complex forms. The calculated stability constants for H4L-Alk ligands and d-elements follow the Irving–Williams series. |
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| ISSN: | 2542-064X 2500-218X |