Chiral Metallocycles Templated Novel Chiral Water Frameworks

An intentionally synthesized chiral terpyridyl ligand <i>S</i>-2­(4-(2,6-di­(pyridin-2-yl)­pyridin-4-yl)-benzylamino)­propanoic acid (H<sub>2</sub>L) was used to construct two chiral Ni<sup>II</sup> complexes, [Ni<sub>2</sub>­(HL)<sub>2</sub>­(N<sub>3</sub>)­(H<sub>2</sub>O)]­(N<sub>3</sub>)·19H<sub>2</sub>O (<b>1</b>) and [Ni<sub>2</sub>­(HL)<sub>2</sub>­(N<sub>3</sub>)<sub>2</sub>]·7H<sub>2</sub>O (<b>2</b>). Both complexes are dinuclear metallocyclic complexes. The monoanionic form (HL)<sup>−</sup> of the chiral ligand coordinates to the metal centers in a bichelating antiparallel fashion to form the metallomacrocycles where the chiral metallocycles Ni<sub>2</sub>(HL)<sub>2</sub> template the formation of a novel chiral 3D zeolite-like water framework with nanometer cages trapping the metallocycles or anchor chiral water chains in the 1D channels of a resulting chiral 3D supermolecule, respectively.