Unprecedented Homochiral Olefin−Copper(I) 2D Coordination Polymer Grid Based on Chiral Ammonium Salts as Building Blocks

4-Vinylbenzylcinchonidinium chloride ([VB-N-CIN]Cl; 1 ), prepared from the corresponding cinchona alkaloid and 4-vinylbenzyl chloride in refluxing acetone and N, N -dimethylformamide, solvothermally reacts with Cu I Cl to afford the unprecedented 2D homochiral copper(I)−olefin coordination polymer Cu 5 Cl 6 (VB-N-CIN) 2 ·C 2 H 5 OH ( 2 ·EtOH) with a 2D layered network. A preliminary enantioseparation investigation shows that the 2D layered network in 2 is capable of selectively intercalating ( R )-2-butanol.