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

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。

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=1.7662（12） nm, c=1.1809（6） nm, β=117.66（3）°, V=1.1337（13） nm^3, 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= 1.11909 （11） nm, c=1.52738 （15） nm,β=101.766 （2）°, V=1.9134 （3） nm^3, Mr=436.31, Z=4 and F（000）=884. Through the weak hydrogen bond, 1 and 2 form three-demensional supramolecular networks, respectively.