Synthesis, crystal structure and optical property of two zinc metal organic frameworks constructed from isonicotinic acid

Two new zinc Metal Organic Frameworks(MOFs), Zn(IN)(2) (1) and Zn(IN)(2)(NO3)(H2O) (2)(HIN = isonicotinic acid), have been synthesized and characterized by PXRD,IR, BET surface area test, uv-vis spectra, thermogravimetric analysis, fluorescent Spectra and single crystal X-ray diffraction. 1 is a 3D 3-fold interpenetrating framework. While 2 reveals a 1D chain structure. Different structures resulted in different optical properties. And there was a crystal phase transformation for 2 when it actived at 100 degrees C. (C) 2014 Elsevier B.V. All rights reserved.