Schiff碱6-甲基-N-氧化吡啶-2-甲醛缩硫代氨基脲的合成及晶体结构  

Synthesis, Crystal Structure of Schiff Base 6-Methyl-2-picolinaldehyde Thiosemicarbazone N-oxide

作　　者：胡瑞祥[1] 于青[1] 梁宏[1] 周忠远[2] 周向葛[2] 

机构地区：[1]广西师范大学化学系,桂林市541004 [2]中国科学院成都有机化学研究所,成都市610041

出　　处：《Chinese Journal of Structural Chemistry》2001年第4期286-290,共5页结构化学（英文）

基　　金：国家自然科学基金资助项目(29761002)

摘　　要：合成了标题Schiff碱并测定了其晶体结构。化合物化学式为C8H10N4OS·H_2O， Mr = 228.27，晶体属单斜晶系，Cc空间群，晶胞参数： a = 13.251(3)， b = 24.919(6)，c = 13.670(3) ?，β= 101.334(5)°，V = 4425.8(19) ?3，Z = 16，Dc = 1.370 g/cm3，μ=0.280 mm-1, F(000)=1920, R = 0.0468，wR = 0.1417。化合物Schiff碱通过氢键作用，形成一种罕见的链状结构。同时与N-氧化吡啶-2-甲醛硫代氨基脲进行比较，讨论了结构变化。The title Schiff base (C8H10N4OS·H_2O. Mr= 230.29) was prepared and its crystal structure was determined by X-ray method. The crystal belongs to the monoclinic system, space group Cc, cell parameters: a = 13.251(3), b = 24.919(6), c = 13.670(3) ?, ( = 101.334(5)(, V = 4425.8(19) ?3, Z = 16, Dc = 1.370 Mg/m3; R = 0.0468, wR = 0.1128. The structure shows a rare chain which is combined by H bond. In addition, the structure of 2-picolinaldehyde Thiosemicarbazone N-oxide is compared with the title compound and is discussed the difference between them.

关 键 词：6-甲基-N-氧化吡啶-2-甲醛缩硫代氨基脲 合成 SCHIFF碱 晶体结构 

分 类 号：O626[理学—有机化学]