合成了标题化合物碘化 4- ( 2 -苯并唑 ) - N-甲基吡啶盐 ,并对其晶体结构进行了测定 .晶体数据 :C1 3H1 1 IN2 O,Mr=338.15 ,单斜晶系 ,空间群为 C2 / c,a=1.0 0 16 ( 3) nm,b=1.782 0 ( 6 ) nm,c=0 .7399( 1) nm,β=10 9.16 ( 2 )°,V=1.2 434 ( 6 ) nm3,Z=4,Dx=1.81g/ cm3,μ=2 5 .3cm- 1 ,F( 0 0 0 ) =6 5 6 .结构偏离因子 R=0 .0 2 7,Rw=0 .0 35 .结构测定表明 ,有机阳离子中两个杂环平面之间的夹角为 148.9°,是一个大的共轭体系 ,有可能实现自身内部的电子转移 The title compound was synthesized by the reaction of 4- (2 - benzoxazolyl) - N - methylpyridinium iodide and the crystal structure was determined.Crystal data: C1 3H1 1 IN2 O, Mr = 338.15, monoclinic The space group is C2 / c, a = 1.0 0 16 (3) nm, b = 1.782 0 (6) nm, c = 0.7399 (1) nm, β = 10 9.16 434 (6) nm3, Z = 4, Dx = 1.81g / cm3, μ = 25.3cm-1 and F (0 0 0) = 6 5 6. The structural deviation factor R = 0.027, Rw = 0 .0 35 The structure determination shows that the angle between the two heterocyclic planes in the organic cation is 148.9 ° and is a large conjugated system that is likely to realize the internal electron transfer