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首页> 外文期刊>Crystal growth & design >Molecular networks created by charge-assisted hydrogen bonding in carboxylate salts of a bis(amidine)
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Molecular networks created by charge-assisted hydrogen bonding in carboxylate salts of a bis(amidine)

机译:在双(()的羧酸盐中通过电荷辅助氢键形成的分子网络

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摘要

Amidines can be protonated by carboxylic acids to give amidinium carboxylates, and the ions can associate by forming multiple charge-assisted hydrogen bonds according to reliable motifs. Extended hydrogen-bonded networks can be constructed by treating suitable bis(amidines) with acids containing multiple carboxyl groups. To further explore the potential of this strategy, we have determined the structures of salts produced by treating 2,2′-bi-2-imidazoline, a cyclic bis(amidine), with oxalic, fumaric, terephthalic, and trimesic acids. The structures of the salts proved to incorporate features resulting predictably from the geometry of the ions and their ability to engage in charge-assisted hydrogen bonds.
机译:idine可以被羧酸质子化以生成am基羧酸盐,并且离子可以根据可靠的图案通过形成多个电荷辅助的氢键来缔合。扩展的氢键网络可以通过用含有多个羧基的酸处理合适的双(am)来构建。为了进一步探索该策略的潜力,我们确定了用草酸,富马酸,对苯二甲酸和均苯三酸处理2,2'-bi-2-咪唑啉(一种环状双(idine))所产生的盐的结构。盐的结构被证明具有可预测的特征,这些特征是由离子的几何形状以及它们参与电荷辅助氢键的能力所预测的。

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