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.
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页数：10
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