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一个一维链配合物[Ni（tacn）(μ1.3-N3)（N3）]的合成,结构,光谱和磁性表征（tacn=1,4,7-三氮杂环壬烷）（英文）
Synthesis, Crystal Structure and Magnetic Properties of a One-dimensional Complex: [Ni（TACN）(μ1.3-N3)（N3）]n （TACN = 1,4,7-triazacyclononane）
【摘要】 合成了一个一维链镍(Ⅱ)配合物,并通过X-射线衍射测得其晶体结构.晶体属正交晶系,空间群为Pca2(1),晶胞参数a=0.7755(3)nm,b=1.5411(5)nm,c=1.8654(6)nm,Z=4,R1=0.0305,wR2=0.0751.中心镍(Ⅱ)离子与1,4,7-三氮杂环壬烷的三个氮原子和三个叠氮的氮原子配位,形成一维链结构.该配合物的磁性测定表明相邻镍(Ⅱ)离子间存在弱的反铁磁相互作用,磁性拟合的结果J=-1.02cm-1,g=2.26,与实验结果相一致.
【Abstract】 The preparation and X-ray crystal structure of [Ni (tacn) (μ1.3-N3) (N3)]n (tacn = 1, 4. 7-triazacyclononane ) have been presented. The complex crystallizes in the orthorhombic. Space group Pca2(1), a = 0. 775 5(3) nm, b=1.541 1(5) nm, c=1.865 4(6) nm, Z = 4, R1 = 0. 030 5 and ωR2 = 0. 075 1. The central Ni ( Ⅱ ) ions are octahedrally coordinated to three nitrogen atoms from tacn and three nitrogen atoms from N3, forming a 1-D chain structure. The magnetic properties of the complex show that there are weak antiferromagnetic interactions between Ni(Ⅱ ) centers. The calculated μeff-T curve with J= -1.02 cm-1, g = 2. 26 show good agreement with experimental data.
- 【文献出处】 南开大学学报(自然科学版) ,Acta Scientiarun Naturaltium Universitatis Nankaiensis , 编辑部邮箱 ,2005年02期
- 【分类号】O627.81
- 【被引频次】2
- 【下载频次】179