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首页> 外文期刊>Acta crystallographica. Section C, Structural chemistry. >Exo conformers of N-(pyridin-2-yl)-and N-(pyridin-3-yl)norbornene-5,6-dicarboximide crystals
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Exo conformers of N-(pyridin-2-yl)-and N-(pyridin-3-yl)norbornene-5,6-dicarboximide crystals

机译:N-(吡啶-2-基)-和N-(吡啶-3-基)降冰片烯5,6-二甲叉酰亚胺晶体的Exo构象

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摘要

In compound (I), the pyridine rings of the two independent molecules adopt different conformations, i.e. syn and anti, with respect to the methylene bridge. The intermolecular contacts of (I) are dominated by C-H...O interactions. In contrast, in compound (II), the pyridine rings of both molecules have an anti conformation and the two independent molecules are linked by carbonyl-carbonyl interactions, as well as by C-H...O and C-H...N contacts.
机译:在化合物(I)中,两个独立分子的吡啶环相对于亚甲基桥具有不同的构象,即顺式和反式。 (I)的分子间接触主要受C-H ... O相互作用的影响。相反,在化合物(II)中,两个分子的吡啶环均具有反构象,并且两个独立分子通过羰基-羰基相互作用以及C-H ... O和C-H ... N接触连接。

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