二維分子肌肉之合成與研究

Abstract

我們利用單元分子結構之剛硬性與金屬離子配位構形進行自組裝，專一性地合成出具功能性[c3]雛菊鏈( [c3]daisy chain )，並可藉由酸/鹼調控模擬生物肌肉”收縮 (contracted) ”和”舒張 (stretched)”的行為，有別於傳統分子肌肉線性運動，此為新穎二維分子肌肉之有機分子。

Daisy chain is a daisy garland where the stems are interlocked to form a chain and chaplet. A molecular daisy chain is an array of identical molecules that must be designed in a way that two complementary sites recognize each other by intermolecular rather than intramolecular. In other words, the monomer must be prevent from ‘biting its own tail’ and lead to form a cyclic or acyclic daisy chains. Herein, we report an artificial molecular muscle based on using structure rigidity, coordination geometries and bond rotational barriers to selectively form a [c3]daisy chains that operate as molecular switches through the acid/base condition to mimic the behavior of bio-muscle. Differing from the traditional linear behavior, it’s a novel two-dimensional molecular muscle.