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首页> 外文期刊>Acta Crystallographica Section E: Crystallographic Communications >Crystal structure and Hirshfeld surface analysis of the new cyclo-diphosphazane [EtNP(S)NMe2]2
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Crystal structure and Hirshfeld surface analysis of the new cyclo-diphosphazane [EtNP(S)NMe2]2

机译:新型环二磷氮烷[EtNP(S)NMe2] 2的晶体结构和Hirshfeld表面分析

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The cyclic compound 2,4-bis(dimethylamino)-1,3-diethylcyclodiphosphazane-2,4-dithione [systematic name: 2,4-bis(dimethylamino)-1,3-diethyl-1,3,2λ5,4λ5-diazadiphosphetidine-2,4-dithione], C8H22N4P2S2 or [EtNP(S)NMe2]2, is member of a class of mol-ecules that may be used, by virtue of their complexation properties, for the extraction of metals. This compound was characterized in solution by (1H and 31P) NMR, and in the solid state by energy-dispersive X-ray spectroscopy (EDX) and by X-ray crystallography. In the crystal, the mol-ecule sits on an inversion centre such that the P and N atoms form a centrosymmetric cyclic P2N2 arrangement. The crystal packing is dominated by van der Waals inter-actions. The prevalence of these inter-actions is illustrated by an analysis of the three-dimensional Hirshfeld surface (HS) and by two-dimensional fingerprint plots (FP). The relative contribution of different inter-actions to the HS indicates that the H?H contacts account for 74.3% of the total HS area.
机译:环状化合物2,4-双(二甲基氨基)-1,3-二乙基环二磷氮烷-2,4-二硫酮[系统名称:2,4-双(二甲基氨基)-1,3-二乙基-1,3,2λ5,4λ5-重氮二氮杂环丁烷-2,4-二硫酮],C8H22N4P2S2或[EtNP(S)NMe2] 2是一类分子分子的成员,由于它们的络合特性,它们可用于提取金属。该化合物在溶液中通过(1H和31P)NMR表征,在固态下通过能量色散X射线光谱法(EDX)和X射线晶体学表征。在晶体中,分子轻晶位于反型中心,因此P和N原子形成一个中心对称的环状P2N2排列。晶体堆积以范德华相互作用为主导。通过对三维Hirshfeld表面(HS)和二维指纹图(FP)进行分析,可以说明这些相互作用的普遍性。不同相互作用对HS的相对贡献表明,H?H接触者占HS总面积的74.3%。

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