Crystallization of the Fundamental Tetracyanamidometallates Li4[Si(CN2)4] and Li4[Ge(CN2)4] from Polymeric Li-T-(NCN)-I Precursors (T=Si, Ge)

被引：1
|
作者：
Roeseler, Kai Daniel [1 ]
Eichele, Klaus [2 ]
Stroebele, Markus [1 ]
Meyer, Hans-Juergen [1 ]
机构：
[1] Eberhard Karls Univ Tubingen, Inst Inorgan Chem, Sect Solid State & Theoret Inorgan Chem, Morgenstelle 18, D-72076 Tubingen, Germany
[2] Eberhard Karls Univ Tubingen, Inst Inorgan Chem, Morgenstelle 18, D-72076 Tubingen, Germany
来源：
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2024年 / 27卷 / 14期
关键词：
tetracyanamidometallate; silicon; germanium; metathesis; thermal scanning; STATE NMR-SPECTROSCOPY; CRYSTAL-STRUCTURE; MAGNETIC-PROPERTIES; QUADRUPOLAR NUCLEI; CHEMICAL-SHIFTS; CARBODIIMIDE; SPECTRA; SILICON; SI-29; C-13;
D O I：
10.1002/ejic.202300713
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The tetracyanamidometallates Li-4[T(CN2)(4)] with T=Si, Ge were prepared by solid-state metathesis (SSM) reactions between TI4 and Li-2(CN2). The new compounds Li-4[T(CN2)(4)] are obtained as crystalline phases in high yields and represent the most basic examples of the family of tetracyanamidometallates. The formation of these compounds, via SiI4 and Li-2(CN2), is analyzed by means of differential scanning calorimetry (DSC). The [Si(CN2)(4)](4-) ion in the structure of Li-4[Si(CN2)(4)] can be considered an analogue to the [SiO4](4-) ion in Li4SiO4. The crystal structures of Li-4[T(CN2)(4)] were solved and refined isotypically on the basis of single-crystal X-ray diffraction data in the space group C2/c, and further characterized by infrared and solid-state NMR techniques.
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页数：6
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