Synthesis and Properties of Tetracyanamidosilicates ARE[Si(CN2)4]

被引：27
|
作者：
Glaser, Jochen [2 ]
Bettentrup, Helga [1 ]
Juestel, Thomas [1 ]
Meyer, H. -Juergen [2 ]
机构：
[1] Fachhsch Munster, Lab Angew Mat Wissensch, D-48565 Steinfurt, Germany
[2] Univ Tubingen, Inst Anorgan Chem, D-72074 Tubingen, Germany
来源：
INORGANIC CHEMISTRY | 2010年 / 49卷 / 06期
关键词：
DICYANAMIDE; MAGNETISM; M(DCA)(2); CO; CR;
D O I：
10.1021/ic902498p
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Tetracyanamidosilicates of the type ARE[Si(CN2)(4)] with A=K, Rb, and Cs and RE=Y and La-Lu have been prepared by a solid-state metathesis reaction. The potassium compounds with RE=La-Gd crystallize orthorhombically in the space group P2(1)2(1)2. Rubidium as well as cesium compounds crystallize tetragonally in the space group I (4) over bar. The luminescent properties of ARE[Si(CN2)(4)]:Ln compounds with RE=Y, La, and Gd doped with 5 mol % Ln=Ce, Eu, or Tb were investigated. Temperature-dependent magnetic susceptibilities were measured for KGd[Si(CN2)(4)]. The value of the magnetic moment is 7.3 mu(B)/Gd3+ ion, which is in line with the expected value for the [Xe]4f(7) configuration of Gd3+.
引用
收藏
页码：2954 / 2959
页数：6
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