Thermochemical Behavior of Crystalline Copper–Zinc Complexes of Nitrilotris(methylenephosphonic) Acid

Авторы: Chausov F.F., Kazantseva I.S., Lomova N.V., Kholzakov A.V., Shabanova I.N., Suksin N.E.
Журнал: Russian Journal of Applied Chemistry
Том: 95
Номер: 4
Год издания: 2022
Издательство: Maik Nauka/Interperiodica Publishing
Местоположение издательства: Russian Federation
Первая страница: 519
Последняя страница: 528
DOI: 10.1134/S1070427222040073
Аннотация: The thermal behavior and mechanism of decomposition of crystalline heterometallic chelate complexes in the concentration substitution series Na4[CuxZn1–xN(CH2PO3)3]•13H2O (0 < x< 1) were studied by thermal gravimetric and differential thermal analysis and by X-ray photoelectron spectroscopy. The decomposition temperature depends on the composition of the heterometallic complexes and configuration of dimeric clusters in their crystal lattice. The heterometallic complex with x= 1/4 shows the highest thermal stability (decomposition onset at approximately 280°С) because of the lowest strain in the structure of the complex anion. Changes in the chemical composition of the complex with x= 1/2, whose crystal structure is built of clusters of identical composition, starts already at 250–290°С, but gaseous products are released only at 300–408°С.
Добавил в систему: Ломова Наталья Валентиновна

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