根据TGA/DTA和XPS数据分析[Cu x Ni(1−x){N(CH2PO3)3}]Na4·nH2O (x = 0…1)等二晶取代系晶相的团簇结构

IF 0.9 4区材料科学 Q3 CRYSTALLOGRAPHY

Zeitschrift Fur Kristallographie-Crystalline Materials Pub Date : 2022-08-19 DOI:10.1515/zkri-2022-0034

F. Chausov, N. Suksin, A. V. Kholzakov, Natalya V. Lomova, I. Kazantseva, D. Rybin

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引用次数: 0

摘要

摘要采用热重分析、差热分析（TGA/DTA）和x射线光电子能谱（XPS）同时研究了异二形态取代系列CuxNi（1−x）NTP（x=0…1）中结晶产物的团簇结构、热化学行为和热分解机理。具有单斜晶体结构的配合物NiNTP和Cu1/8Ni7/8NTP是最热稳定的，其特征是在400–440°C下一步分解，形成金属磷化物和磷酸盐。Cu3/8Ni5/8NTP–Cu3/4Ni1/4NTP与三斜晶格和金属原子的三角双锥配位的配合物分两步分解。首先，亚氨基双亚甲基膦酸和甲基膦酸在245°C下形成杂配体络合物。其次，络合物在270–380°C下分解。单金属络合物CuNTP在280–300°C时几乎完全分解。

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The cluster structure of crystalline phases according to TGA/DTA and XPS data in isodimorphic substitution series [Cu x Ni(1−x){N(CH2PO3)3}]Na4·nH2O (x = 0 … 1)

Abstract The cluster structure, thermochemical behavior, and some mechanisms of thermal decomposition of the crystalline products in the isodimorphic substitution series Cu x Ni(1−x)NTP (x = 0 … 1) have been studied by simultaneous the thermal gravimetric analysis and differential thermal analysis (TGA/DTA) and X-ray photoelectron spectroscopy (XPS). The complexes NiNTP and Cu1/8Ni7/8NTP with a monoclinic crystal structure are the most thermo-stable and characterized by one-step decomposition at 400–440 °C with the formation of metal phosphides and phosphates. The complexes Cu3/8Ni5/8NTP–Cu3/4Ni1/4NTP with the triclinic crystal lattice and the trigonal-bipyramidal coordination of metal atoms decompose in two steps. Firstly, the formation of a heteroligand complex with imino-bis-methylenephosphonic and methylphosphonic acids takes place at 245 °C. Secondly, the complex decomposes at 270–380 °C. The monometallic complex CuNTP decomposes almost completely at 280–300 °C.

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来源期刊

Zeitschrift Fur Kristallographie-Crystalline Materials CRYSTALLOGRAPHY-

CiteScore

2.00

自引率

16.70%

发文量

期刊介绍： Zeitschrift für Kristallographie – Crystalline Materials was founded in 1877 by Paul von Groth and is today one of the world’s oldest scientific journals. It offers a place for researchers to present results of their theoretical experimental crystallographic studies. The journal presents significant results on structures and on properties of organic/inorganic substances with crystalline character, periodically ordered, modulated or quasicrystalline on static and dynamic phenomena applying the various methods of diffraction, spectroscopy and microscopy.