【作者】 蒋凯； 赵保利； 王利亚；

【机构】 河南师范大学化学与环境科学学院； 洛阳师范学院化学系；

【摘要】 通过Ullman法合成了一个新的氮氧自由基(4,4,5,5-tetramethylimidazoline-2-yl-(2’-chlor-5’-nitrphenyl)-3- oxide-1-oxyl),表征了其晶体结构。晶体属于单斜晶系,P2(1)／n空间群,a=10．6798(9)A,b=11．2705(9)A,c= 12．9559(10)A,β=107．3770(10)°,V=1488．3(2)A3,Z=4,Dc=1．396 g/cm3,F(000)=652,RI=0．0606,wR2=0．1773(I>2 σ(I));该化合物通过分子间氢键作用形成二维网状结构。磁性研究结果表明该自由基之间存在着弱的反铁磁作用。更多还原

【Abstract】 A novel radical (4,4,5,5-tetramethylimidazoline-2-yl-(2’-Chlor-5’-nitrphenyl)-3-oxide-l-oxyl) was obtained by Ullman method and structurally characterized. The crystal system is monoclinic, space group P2(l)/n with a = 10.6798(9) A, b = 11.2705(9) A, c = 12.9559(10) A, β =107.3770(10)°, V = 1488.3(2) A3, Z = 4, DC = 1.396 g/cm3, F(000) = 652, R = 0.0606, wR2 = 0.1773 (I>2σ(I)) . The title complex exhibits weak intramolecular antiferromagnetic interactions between radicals. Moreover, the intermolecular H-bonds interaction results in the formation of 2-dimension network.更多还原