Syntheses, structures and luminescent properties of two novel Zn (II) coordination polymers

Two new coordination polymers, namely [Zn(TZMB)](n), (1) and {[Zn(TZMB)](H(2)TZMB)]center dot (C2H5OH)(0.5)(H2O)(2.5)}(n) (2), (H(2)TZMB = 4,4'-(1H-1,2,4-triazol-1-yl)methylene-bis(benzonic acid), have been synthesized under hydrothermal conditions and characterized by single-crystal X-ray diffraction analysis, elemental analysis (EA), IR spectrum analysis (IR), powder X-ray diffraction (PXRD), and thermogravimetric (TG) analysis. Single X-ray diffraction analysis reveals that complex 1 is a 3D 3,6-connected net with the point symbol of (6(11)0.8(4))(6(3))(2) and complex 2 is a 2D 3-connected net with the point symbol of (6(3)). Furthermore, luminescent properties of complexes 1 and 2 were also investigated in detail.