A Homochiral Luminescent 2D Porous Coordination Polymer with Collagen-Type Triple Helices Showing Selective Guest Inclusion

A homochiral luminescent porous coordination polymer,
[Cd­(L)­(H2O)]·3H2O, with interconnected
collagen like
triple-helical chains has been synthesized solvothermally by using
cadmium­(II) salt and a newly designed d-isosorbide-based,
enantiomerically pure chiral ligand. The framework is a 2D porous
material and forms a 1D channel along the a axis,
with the channel dimensions ∼6.2 × 4.4 Å2. The compound has high selectivity in the uptake of water and methanol
over other solvents (e.g., tetrahydrofuran, ethanol, benzene, and
cyclohexane) inside the channels.