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Synthesis of water-soluble zinc(ii) nitrilotris(methylenephosphonate). Molecular structure of bis(4-carboxyphenylaminium) nitrilotris(methylenephosphonate) dihydrate.
- Source :
-
Russian Chemical Bulletin . Sep2020, Vol. 69 Issue 9, p1778-1788. 11p. - Publication Year :
- 2020
-
Abstract
- Nitrilotris(methylenephosphonic)acid N[CH2P(O)(OH)2]3 (H6L) reacts with zinc oxide in an aqueous medium to give a poorly soluble polymeric crystalline salt (ZnH4L)n. The reaction proceeds through the intermediate formation of a soluble monomer complex ZnH4L. The water-soluble amorphous forms of the coordination compound used as microfertilizers were obtained by treatment of a suspension of this salt with 2-aminoethanol, 2-amino-2-(hydroxymethyl)propane-1,3-diol, 2,2′-(ethylenedioxy)bis(ethylamine). p-Aminobenzoic acid H2NC6H4COOH reacts in an aqueous solution with hexabasic nitrilotrimethylenephosphonic acid, as well as with the monomeric complex ZnH4L, giving crystals of bis(4-carboxyphenylaminium) nitrilotris(methylenephosphonate) dihydrate H4L2− · 2(H3N-C6H4-COOH)+ · 2H2O. The compounds were investigated by elemental analysis, IR and UV spectroscopy, X-ray phase analysis and X-ray diffraction analysis. Tests of the water-soluble complex with 2-aminoethanol ZnHL3− · 3(H3NCH2CH2OH)+ · 2H2O in the laboratory experiment with seeds of two agricultural crops showed a positive agronomic effect. [ABSTRACT FROM AUTHOR]
- Subjects :
- *MOLECULAR structure
*COORDINATION compounds
*AGRICULTURAL exhibitions
*ZINC
*CROPS
Subjects
Details
- Language :
- English
- ISSN :
- 10665285
- Volume :
- 69
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Russian Chemical Bulletin
- Publication Type :
- Academic Journal
- Accession number :
- 146381053
- Full Text :
- https://doi.org/10.1007/s11172-020-2962-9