Monoammonium Trimetaphosphimate (NH4)H2(PO2NH)3

被引：0

作者：

Guenther, Daniel ^{[1
]}

Paulmann, Carsten ^{[2
]}

Oeckler, Oliver ^{[1
]}

机构：

[1] Univ Leipzig, Inst Mineral Crystallog & Mat Sci, Scharnhorst str 20, D-04275 Leipzig, Germany

[2] Univ Hamburg, Dept Earth Syst Sci, Grindelallee 48, D-20146 Hamburg, Germany

来源：

CRYSTALS | 2023年 / 13卷 / 01期

关键词：

trimetaphosphimate; single-crystal structure determination; thermal decomposition; hydrogen bonding; packing of rings; CRYSTAL-STRUCTURE; SALTS; ACID;

D O I：

10.3390/cryst13010111

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Trimetaphosphimates show a rich structural variability in both cation coordination and anion arrangement. They are precursors for crystalline, as well as amorphous oxonitridophosphates. The ammonium trimetaphosphimate (NH4)H-2(PO2NH)(3) is formed during the decomposition of the corresponding acid in solution. The monoclinic crystal structure of the monoammonium salt was elucidated by single crystal X-ray diffraction using synchrotron radiation. The trimetaphosphimate monoanions exhibit a twist conformation and form crankshaft-like stacks along [100], which have so far only been observed in (NH4)(3)(PO2NH)(3)center dot H2O and Ag-3(PO2NH)(3). (NH4)H-2(PO2NH)(3) decomposes at 170 degrees C, forming a poorly crystalline phase. Therefore, it is a model system and possible precursor for the synthesis of oxonitridophosphates.

引用

页数：10

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