Synthesis, photophysics, electrochemistry and metal ion-binding studies of rhenium(i) complexes with crown ether pendants: selective and specific binding properties for various metal ions
diimine complexes with crown ether pendants has been synthesized and the photophysical and electrochemical behaviour studied. By variation of the cavity size and donor atoms of the crown ether, the complexes showed selective and specific binding properties for various metal cations of different sizes and different degrees of hardness and softness. The X-ray crystal structure of one of the complexes has