One new nonlinear optical and ferroelectric one-dimensional chain constructed by an unsymmetric bridging ligand

One new one-dimensional neutral coordination polymer [Zn(BTA)2(H2O)]n (1) was hydrothermally synthesized by the self-assembly of the flexible and unsymmetric bridging ligand, 2-(1H-benzotriazol-1-yl)acetic acid, and zinc nitrate. The induction of the unsymmetric ligand leads it to crystallize in non-centrosymmetric polar packing arrangement, which displays second harmonic generation response and ferroelectric behavior, which provides a new strategy for designing functional coordination compounds.