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抗磁金属Zn(Ⅱ)-氮氧自由基配合物的合成、晶体结构和磁性研究 被引量：2

Synthesis,Crystal Structure and Magnetic Properties of Nitroxide Radical-diamagnetic Metal Zn(Ⅱ)Complex
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摘要 成了一个抗磁金属 Zn(Ⅱ)-氮氧自由基配合物[Zn(IM4Py)_2(OCN)_2](其中 IM4Py=2-(4′-吡啶基)-4,4,5,5-四甲基咪唑啉-1-氧基自由基).X-射线衍射分析结果显示该化合物属单斜晶系,Pn 空间群;晶胞参数a=1.231 4(5)nm,b=0.605 5(2)nm,c=2.256 3(7)nm,β=119.615(16)°.其中每个 Zn(Ⅱ)离子采取四配位的变形四面体构型,分别与两个空间对称的 IM4Py 自由基以及两个氰酸根阴离子配位,构成单核双自旋配合物.配合物的变温磁化率结果显示,由抗磁金属 Zn(Ⅱ)连接的 IM4Py 自由基间传递弱的铁磁相互作用. The nitroxide radical-diamagnetic metal Zn （Ⅱ） complex of [Zn （IM4Py）2 （OCN） 2] （IM4Py = 2- （ 4＇-pyridyl ）- 4,4, 5,5-tetramethylimidazoline- 1-oxyl ） was synthesized and characterized structurally and magnetically. It crystallizes in the monoelinie space group Pn, with a=1. 231 4（5）, b=0.605 5（2）, c=2.256 3（7） nm; β= 119. 615（16）° Every Zn （ Ⅱ ） is coordinated by two IM4Py and two OCN- in a tetrahedron environment. The variable magnetic measurement shows that there is weak ferromagnetic interaction between the two IM4Py radicals linked by Zn（ Ⅱ ） ion.
作者 马越 许金霞 王超 周娜 廖代正
机构地区 南开大学化学系
出处 《南开大学学报（自然科学版）》 CAS CSCD 北大核心 2008年第1期71-75,共5页 Acta Scientiarum Naturalium Universitatis Nankaiensis
基金 国家自然科学基金(20471031 20571045)
关键词 氮氧自由基配合物 抗磁金属Zn(Ⅱ) 晶体结构 磁性 nitroxide radical complex diamagnetic metal Zn（Ⅱ ） crystal structure magnetic properties
分类号 O614 [理学—无机化学]
  • 相关文献

参考文献22

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同被引文献26

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  • 10Lee C J,Wei H H,Lee G H,et al.A novel chloro-bridged tetranuclear cadmium(Ⅱ) cluster with pyridyl-substituted nitronyl nitroxide:structure and magnetic properties[J].Inorg Chem Commun,2000(3):690-693.

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南开大学学报（自然科学版）
2008年 第1期

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