3 nm-scale molecular switching between fluorescent coordination capsule and nonfluorescent cage
3 nm-scale molecular switching between fluorescent coordination capsule and nonfluorescent cage
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DOI：
10.1021/ja0659727
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发表时间：
2007-05-02
影响因子：
15
通讯作者：
Shionoya, Mitsuhiko
中科院分区：
文献类型：
--
作者：
Harano, Koji;Hiraoka, Shuichi;Shionoya, Mitsuhiko
三硫单齿配体（L）与Hg ~（2+）通过自组装的方式定量地形成了3 nm大小的笼状大开口Hg_6L_4配合物。笼状配合物显示可逆的相互转化与胶囊状的Hg 6L 8配合物响应于配体与Hg 2+的比例。这种结构转换与荧光Hg 6L 8胶囊和非荧光Hg 6L 4笼之间的荧光可逆ON/OFF转换相结合。
A 3 nm-sized cage-shaped Hg6L4 complex with large openings was quantitatively formed from trismonodentate ligand (L) and Hg2+ ions in a self-assembled manner. The cage complex shows reversible interconversion with a capsule-shaped Hg6L8 complex in response to the ratio of ligand to Hg2+. This structural switching is coupled with reversible ON/OFF switching of fluorescence between fluorescent Hg6L8 capsule and nonfluorescent Hg6L4 cage.