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两个氮氧自由基的合成与晶体结构:双自由基与阳离子自由基(英文)
Syntheses and Crystal Structures of Two Nitronyl Nitroxide: Biradical and Cationradical
【摘要】 合成并表征了2个氮氧自由基:2,2′-(2,5-二甲基苯基)-1,4-双(4,4,5,5-四甲基咪唑啉-3-氧化-1-氧基)自由基1和水合碘化m-N,N′,N″-三甲基苯铵基)-4,4,5,5-四甲基咪唑啉-3-氧化-1-氧基自由基2。双自由基1和阳离子自由基2均结晶于单斜晶系,P21/c空间群。通过分子间的氢键作用,2个化合物形成三维超分子体系。
【Abstract】 Two nitronyl nitroxide radical NIT2PhMe2 (1), 2,5-dimethyl-1,4-bis(nitronyl nitroxide) benzene and NITPhNMe3·I·H2O (2), hydrous iodide m-N,N′ ,N″ -trimethyl-benzenaminium nitronyl nitroxide, have been synthesized and structurally characterized. The compound 1 crystallized in monoclinic, space group P21/c with a=0.613 7(4) nm, b=1.766 2(12) nm, c=1.180 9(6) nm, β=117.66(3)°, V=1.133 7(13) nm3, Mr=416.52, Z=2 and F (000)=456. The compound 2 also crystallized in monoclinic, space group P21/c with a=1.143 47 (11) nm, b= 1.119 09 (11) nm, c=1.527 38 (15) nm, β=101.766 (2)°, V=1.9134 (3) nm3, Mr=436.31, Z=4 and F (000)=884. Through the weak hydrogen bond, 1 and 2 form three-demensional supramolecular networks, respectively. CCDC: 749328, 1; 749329, 2.
【Key words】 crystal structure; nitronyl nitroxide; biradical; cationradical;
- 【文献出处】 无机化学学报 ,Chinese Journal of Inorganic Chemistry , 编辑部邮箱 ,2009年12期
- 【分类号】O621.13
- 【被引频次】3
- 【下载频次】213