A New Acentric Cd(Ii) Metal-Organic Framework with 2-Fold Pillar-Layered Structure Based on Symmetrical Flexible Ligands

A 3-D metal-organic framework [Cd(BPHY)(SA)]n1 (BPHY=1,2-bis(4-pyridyl)hydrazine, H2SA=succinic acid) has been solvothermally synthesized. Compound 1 features a 2-fold pillar-layered structure and crystallizes in a non-centrosymmetric space group (I2). It is testified to be second harmonic generation (SHG) active. The blue photoluminescence of 1 is attributed to BPHY-centered charge transition demonstrated by theoretical calculation.