Gondola-Shaped Luminescent Tetrarhenium Metallacycles with Crown-Ether-like Multiple Recognition Sites

The self-assembly of gondola-shaped tetrarhenium metallacyclophanes was achieved in near quantitative yield from Re(CO)3
corners, a ditopic heterocyclic clip, and a bischelating-bridging unit
using an orthogonal-bonding approach. The highly luminescent
metallacycles contain crown-ether-like recognition sites, which are
capable of selectively recognizing metal ions and planar aromatic
molecules.

通过正交键合方法，从Re(CO)3角、一种双点异环夹具以及一个双螯合桥接单元出发，成功实现了 gondol-shaped tetrarhenium metallacyclophanes 的自组装，其产率接近定量。这些高度发光的金属环结构内含有类似冠醚的识别位点，能够选择性地识别金属离子和平面芳香分子。