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中文摘要：
采用2-（2-喹啉）氮氧自由基与过渡金属Ni（Ⅱ）配位,得到了一个Ni（Ⅱ）与自由基形成的双自旋配合物[Ni（hfac）_2（2-QNNN）],（其中2-QNNN=2-（2-喹啉基）-4,4,5,5-四甲基咪唑啉-3-氧化-1-氧基自由基,hfac=1,1,1,5,5,5-六氟乙酰丙酮）.单晶X-射线衍射结果表明,配合物属三斜晶系,P_i空间群.晶胞参数a=1.350 8（3）nm,b=1.418 9（3）nm,c=1.817 8（4）nm,α=104.76（3）°,β=108.65（3）°,γ=90.03（3）°,其中每个Ni（Ⅱ）离子采取六配位模式处于八面体配位构型中,分别与两个六氟乙酰丙酮上的四个氧原子、氮氧自由基N一O基团上的一个氧原子以及氮氧自由基喹啉基团上的氮原子配位.变温磁化率研究表明,配合物中过渡金属Ni（Ⅱ）离子和自由基之间存在着强的反铁磁相互作用.
英文摘要：
The 2-（2-quinolyl）nitronyl nitroxide transition metal Ni（Ⅱ） complex of [Ni （hfac） 2 （2-QNNN） ], （2-QNNN = 2- （2-quinolyl）- 4,4,5,5-tetramethylimidazoline- 1-oxyl- 3-oxide, hfac = hexafluoroacetylacetonate）, was synthesized and characterized structurally and magnetically. It crystallizes in the triclinic space group P1, with a=1.350 8（3）nm,b=1.418 9（3）nm,c=1.817 8（4）nm,α=104.76（3）°,β=108.65（3）°,γ=90.03（3）° Every Ni （ Ⅱ ） is coordinated by one 2-QNNN and two Mac in a octahedron environment, forming a two spin Ni-radical mononuclear complex [Ni（hfac）2（2-QNNN）]. The variable magnetic measurement shows that there is strong antiferromagnetic interaction between the radical and Ni （ Ⅱ） ion in the molecule.
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