Synthesis, crystal structure, and properties of MnNCN, the first carbodiimide of a magnetic transition metal

被引：141
|
作者：
Liu, XH [1 ]
Krott, M [1 ]
Muller, P [1 ]
Hu, CH [1 ]
Lueken, H [1 ]
Dronskowski, R [1 ]
机构：
[1] Rhein Westfal TH Aachen, Inst Anorgan Chem, D-52056 Aachen, Germany
来源：
INORGANIC CHEMISTRY | 2005年 / 44卷 / 09期
关键词：
D O I：
10.1021/ic050050a
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Synthesis, single-crystal structure determination, and magnetic properties are reported for manganese carbodiimide, MnNCN. The presumably unstable but inert phase adopts the trigonal system (R $(3) over bar $m) with a = 3.3583(4) angstrom, c. = 14.347(2) angstrom, V = 140.13(3) angstrom(3), and Z = 3. Divalent manganese is octahedrally coordinated by nitrogen atoms at 2.26 angstrom, and the NCN2- unit adopts the linear [N=C=N](2-) carbodiimide shape with two C=N double bonds of 1.23 angstrom. MnNCN contains high-spin Mn(II) with five unpaired electrons and behaves like an antiferromagnet with an ordering temperature below 30 K.
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收藏
页码：3001 / 3003
页数：3
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