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首页> 外文期刊>Acta Crystallographica, Section B. Structural Science >Isomeric N-(iodophenyl)nitrobenzamides form different three-dimensional framework structures.
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Isomeric N-(iodophenyl)nitrobenzamides form different three-dimensional framework structures.

机译:同构的N-(碘苯基)硝基苯甲酰胺形成不同的三维骨架结构。

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摘要

The isomeric N-(iodophenyl)nitrobenzamides, C(13)H(9)IN(2)O(3), all form different three-dimensional framework structures. Molecules of N-(2-iodophenyl)-3-nitrobenzamide (II) are linked by a combination of N-H...O and C-H...O hydrogen bonds and a two-centre iodo...carbonyl interaction. The supramolecular structure of N-(2-iodophenyl)-4-nitrobenzamide (III) is built from one N-H...O and two C-H...O hydrogen bonds, but short I...O contacts are absent from the structure. In N-(3-iodophenyl)-2-nitrobenzamide (IV), which crystallizes with Z' = 2 in space group P2(1), the structure contains two N-H...O hydrogen bonds, four C-H...O hydrogen bonds, two two-centre iodo...nitro interactions and an aromatic pi...pi stacking interaction. The structure of N-(3-iodophenyl)-3-nitrobenzamide (V) contains one N-H...O hydrogen bond and three C-H...O hydrogen bonds, together with a two-centre iodo...nitro interaction and an aromatic pi...pi stacking interaction, while in N-(3-iodophenyl)-4-nitrobenzamide (VI), the combination of one N-H...O hydrogen bond and two C-H...O hydrogen bonds is augmented not only by a two-centre iodo...nitro interaction and an aromatic pi...pi stacking interaction, but also by a dipolar carbonyl...carbonyl interaction. In the supramolecular structure of N-(4-iodophenyl)-4-nitrobenzamide (IX), which crystallizes with Z' = 2 in space group Poverline 1, there are two N-H...O hydrogen bonds, four C-H...O hydrogen bonds and two three-centre iodo...nitro interactions.
机译:异构N-(碘苯基)硝基苯甲酰胺C(13)H(9)IN(2)O(3)均形成不同的三维框架结构。 N-(2-碘苯基)-3-硝基苯甲酰胺(II)的分子通过N-H ... O和C-H ... O氢键以及两中心碘代...羰基相互作用的结合而连接。 N-(2-碘苯基)-4-硝基苯甲酰胺(III)的超分子结构由一个NH ... O和两个CH ... O氢键构成,但该结构中没有短的I ... O接触。在空间P2(1)中以Z'= 2结晶的N-(3-碘苯基)-2-硝基苯甲酰胺(IV)中,该结构包含两个NH ... O氢键,四个CH ... O氢键,两个两中心的碘...硝基相互作用和芳香pi ... pi堆积相互作用。 N-(3-碘苯基)-3-硝基苯甲酰胺(V)的结构包含一个NH ... O氢键和三个CH ... O氢键,以及两个中心的碘...硝基相互作用和一个芳香pi ... pi堆积相互作用,而在N-(3-碘苯基)-4-硝基苯甲酰胺(VI)中,不仅增加了一个NH ... O氢键和两个CH ... O氢键的组合通过两个中心的碘...硝基相互作用和芳香族pi ... pi堆积相互作用,也可以通过偶极羰基...羰基相互作用。在空间组P overline 1中以Z'= 2结晶的N-(4-碘苯基)-4-硝基苯甲酰胺(IX)的超分子结构中,有两个NH ... O氢键,四个CH。氢键和两个三中心碘...硝基相互作用

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