Catalytically active coordination polymer with a tiny Zn 2 Se 2 ring bridged by bis-selone.

The unprecedented architecture of a one-dimensional coordination polymer with a tiny Zn 2 Se 2 ring system incorporated in the hydrogen-bonded array has been prepared, where the di-selone ligand functions as a unique neutral bridging ligand. The coordination polymer shows excellent catalytic activity in substituted 8-hydroxy-2-quinolinyl synthesis through Knoevenagel condensation reaction.