Memory of macromolecular helicity assisted by interaction with achiral small molecules

Eiji Yashima; Katsuhiro Maeda; Yoshio Okamoto

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Memory of macromolecular helicity assisted by interaction with achiral small molecules

机译：与非手性小分子相互作用辅助大分子螺旋的记忆

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The helicity of biological macromolecules such as DNA and proteins is largely governed by the homochirality of their components (D-sugars and L-amino acids). In polymer and supramole-cular chemistry, control of helicity is an attractive goal because of possible applications in materials science, chemical sensing and enantioselective catalysis. We reported recently that macro-molecular helicity can be induced in a polymer by an optically active amine. Here we show that this helicity can be 'memorized' when the amine is replaced by various achiral amines. Although the maintenance of helicity in the polymer is not perfect, it can 'repair' itself over time. Small structural changes in the achiral amines influence the efficiency of helicity retention markedly.

机译：诸如DNA和蛋白质之类的生物大分子的螺旋结构主要受其组分（D-糖和L-氨基酸）的同质性控制。在聚合物和超分子化学中，控制螺旋性是一个有吸引力的目标，因为它可能在材料科学，化学传感和对映选择性催化中得到应用。我们最近报道了旋光性胺可在聚合物中诱导大分子螺旋。在这里，我们表明，当胺被各种非手性胺取代时，可以“记忆”这种螺旋度。尽管聚合物中螺旋度的维持并不完美，但随着时间的流逝，它可以“自我修复”。非手性胺的细微结构变化显着影响了螺旋保留的效率。

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来源
《Nature》 |1999年第6735期|p.449-451|共3页
作者
Eiji Yashima; Katsuhiro Maeda; Yoshio Okamoto;
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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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正文语种 eng
中图分类自然科学总论;
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Memory of macromolecular helicity assisted by interaction with achiral small molecules

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