Construction of a 3D porous Zn(II) compound with (3,4)‐connected topology: luminescent and gas sorption properties

Abstract

A new 3D porous Zn(II) compound [Zn 2 (L) 2 (C 2 O 4 )] n • 2(DMA) (1, HL = 4-(4-carboxyphenyl)-2,2' : 4',4''-terpyridine, DMA = N, N'dimethylacetamide) was successfully synthesized with carboxyphenyl-terpyridine ligand. X-ray structural analysis revealed that compound 1 features a 2-fold interpenetrated framework with (3,4)-connected network topology. Despite interpenetration, compound 1 still contains high solvent-accessible free volume owing to the existence of large 1D nanotube channels. Gas adsorption properties investigation of the activated 1 a confirms its high BET surface area, high CO 2 uptake capacity and excellent adsorption selectivity of CO 2 over CH 4 . Luminescent properties investigation indicate that compound 1 displays intense luminescence at room temperature.