采用喹喔啉基取代的氮氧自由基NITQ与锌（Ⅱ）离子进行配位，得到了1个单核的双自旋配合物[Zn（acac）2（NITQ）2]·2CH2Cl2（其中acac＝乙酰丙酮阴离子，NITQ＝2-（2′-喹喔啉基）-4，4，5，5-四甲基咪唑啉-3-氧化-1-氧基自由基）。X射线单晶衍射分析结果表明，两个NITQ自由基作为单齿配体分别与Zn（acac）2配位，形成八面体构型的双自旋配合物。变温磁化率研究表明，NITQ自由基间存在铁磁相互作用，其居里常数C＝0.7242 cm3· K／mol，外斯常数θ＝0.5958 K。
A two-spin complex{[Zn(acac)2](NITQ)2}· 2CH2Cl2(acac=acetylaceonate anion, NITQ=2-( 2-quinoxalinyl )-4, 4, 5, 5-tetramethylimidazoline-1-oxyl-3-oxide ) was synthesized from a quinoxalinyl substituted nitroxide radical .The X-ray analysis of the single crystal reveals that two NITQ radicals act as monodentate ligands coordinated to Zn 2+to form a two-spin octahedral complex .The magnetic study shows that two NITQ radicals have ferromagnetic interaction , the Curie constant C=0.7242 cm3· K/mol and Weiss constant θ=0.5958 K.
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