Four Zn(II) coordination complexes, namely {[Zn(pmbm) 2 (tpa)]·H 2 O} n (1), {[Zn(pmbm)(phda)]·2(H 2 O)} n (2), [Zn(pmbm)(aze)] n (3), {[Zn(pmbm)(1,4-ndc)]·2(CH 3 OH)} n (4) [pmbm = 1-(4-pyridylmethyl)-benzimidazole, H 2 tpa = terephthalic acid, H 2 phda = phenylenediacetic acid, H 2 aze = azelaic acid, 1,4-ndcH 2 = 1,4-naphthalenedicarboxylic acid] have been synthesized by solution phase ultrasonic reactions of Zn(AC) 2 ·2H 2 O with pmbm and various dicarboxylates ligands under the ammoniacal condition. All the complexes have been characterized by elemental analyses, IR spectra and X-ray diffraction. Complexes 1 and 2 exhibit one-dimensional chains structure and complex 3 and 4 are two-dimensional sheets structure with (4,4) topology. Complexes 1 – 4 spanning from one-dimensional chains to two-dimensional sheets suggest that dicarboxylates play significant roles in the formation of such coordination architectures. The photoluminescences of the complexes were also investigated in the solid state at room temperature.
