首页> 外文期刊>Zeitschrift fur Naturforschung, B. A Journal of Chemical Sciences >Synthesis and structural characterization of N,n′- Dipropyl-N,N,N′,N′-tetramethyl-1,2-ethylenediammonium dichloride and Dibromide
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Synthesis and structural characterization of N,n′- Dipropyl-N,N,N′,N′-tetramethyl-1,2-ethylenediammonium dichloride and Dibromide

机译:N,n′-二丙基-N,N,N′,N′-四甲基-1,2-亚乙基二氯化铵和二溴化物的合成及结构表征

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摘要

N,N′-Dipropyl-N,N,N′,N′-tetramethyl-1, 2-ethylenediammonium dichloride (1) and dibromide (2) were prepared by the reaction of N,N,N′,N′-tetramethyl-1,2-ethylenediamine and the corresponding 1-halopropane. The structures of the compounds were characterized by single-crystal X-ray diffraction. 1·2H_2O crystallizes in the tricliniccrystal system, space group P1, with Z = 1, and 2 in the monoclinic crystalsystem, space group P2_1/c, with Z = 2. The crystal structures ofthe salts consist of discrete dications and halide anions. The packingin 1·2H_2O consists of layers of cations with the chloride anions and water molecules forming hydrogen-bonded chains between the cation layers. In2,the strongest H?Br hydrogen bonds of 2.8138(6) and 2.8187(7) ? link the cations and anions into doublestranded chains. In both salts, cations and anions are also linked together by a further weak C-H?Cl/Br hydrogen bonding network.
机译:通过N,N,N',N'-四甲基的反应制得N,N'-二丙基-N,N,N',N'-四甲基-1,2-亚乙基二氯化铵(1)和二溴化物(2) -1,2-乙二胺和相应的1-卤丙烷。化合物的结构通过单晶X射线衍射表征。 1·2H_2O在三斜晶系空间群P1中具有Z = 1结晶,在单斜晶系空间群P2_1 / c中具有2,Z =2。该盐的晶体结构由离散的离子和卤化物阴离子组成。 Packingin 1·2H_2O由带有氯离子和水分子的阳离子层组成,在阳离子层之间形成氢键连接的链。 In2中最强的H?Br氢键2.8138(6)和2.8187(7)?将阳离子和阴离子连接成双链。在两种盐中,阳离子和阴离子也通过更弱的C-H2Cl / Br氢键网络连接在一起。

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