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- W929032144 abstract "以甲苯为溶剂,N,N-双(二甲基氨基亚甲基)肼二盐酸盐)(1),与4-氨基-1,2,4-三唑缩合制得4,4′-联-1,2,4-三唑(2,BTr),产品经1 H NMR,IR,MS和元素分析确证结构,并成功培养出BTr单晶。考察了反应中溶剂、投料比、时间及温度对BTr产率的影响。结果表明,缩合反应的最佳溶剂为甲苯,最优工艺条件为 n(1)n(4-氨基-1,2,4-三唑)=11.2,时间为8 h,温度为110℃,所得收率可达86.4%。经 X 射线单晶衍射仪测定,BTr 单晶晶体为斜方晶系,属 Pnma空间群,晶体学参数为:a=0.69712(14)nm,b=0.74045(15)nm,c=1.1156(2)nm,V=0.5759(2)nm3,Z=4,Dc =1.570 g·cm -3,F(000)=280, R1=0.043,ωR2=0.1222,BTr分子中两个单三唑环在空间相互垂直,该立体结构空间位阻小,利于分子稳定。" @default.
- W929032144 created "2016-06-24" @default.
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- W929032144 date "2013-08-25" @default.
- W929032144 modified "2023-09-26" @default.
- W929032144 title "4,4′-联-1,2,4-三唑的合成、表征和晶体结构" @default.
- W929032144 doi "https://doi.org/10.3969/j.issn.1006-9941.2013.04.005" @default.
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