Pretreatment and Adsorption Effects on Stability and Morphology Structure of TCNQ-Based Porous Coordination Moondra Zubir 1 , Marini Damanik 2 , HafniIndriati Nasution 3 and MindaShafina Syafei 4 { moondrazubir@unimed.ac.id} Chemistry Department, Faculty of Mathematics and Natural Science, State University of Medan, Jl. Willem Iskandar, Pasar V, Medan Estate, Medan, North Sumatera, Indonesia 1,2,3,4 Abstract: Porous Coordination Polymers (PCPs) were synthesized using TCNQ and bipyridine anions that serve as connectors to form a 3-dimensional framework. In this study, zinc metal ions (Zn 2+ ) and manganese (Mn 2+ ) as the center of the complex compound coordination. XRD pattern of Zn (TCNQ-TCNQ) bpy.1.5Benzen 0T and 6T shows no difference, it suggest no magnetic field effect of 6T on the formation of crystal structure. The magnetic field exhibits effect on the morphology of the crystals. The SEM image shows that the 6T crystal surface smoother and the particle size larger than the 0T crystal for both complex compounds. The XRD pattern shows the stability properties of the structure for both types of these complex compounds and the SEM image also shows the stability properties of the compounds after the pretreatment process and after the adsorption process.. Keywords: Magnetic fields, crystal structure, morphology, adsorption. 1 Introduction Porous coordination polymers (PCPs) compounds have expanded beyond the scope of two other classes of porous material as inorganic material and carbon-based material. The crystal structure of PCPs become a new group of nano-porous crystals. (Noro, 2009 and Kitagawa, 2009). It’s get high attention in porous material research because of their high surface area and large volume of free cages instead their interesting applications including gas purification, gas separation and catalysis (Seo and Matsudsa, 2009). Porous polymer coordination was built on the self-design of metal ions and organic ligands and formed as crystalline materials which high flexibility obtained from the building of the skeleton through coordination covalent bonds (Ghosh and Kitagawa, 2009). The formation of structures and pore properties is very easy because the components of the preparation are selected. Using these properties, it’s also possible to modify the pore surface with organic ligands that interact with certain molecules (Tanaka, 2008 and Sakamoto, 2009) In this study, the TCNQ-based PCPs series of {[M(TCNQ-TCNQ)bpy].x.Benzene}n was prepared using zinc (Zn) and manganese (Mn) as metal ions which have different magnetic properties as diamagnetic and paramagnetic respectively. TCNQ was used as ligand because it AISTSSE 2018, October 18-19, Medan, Indonesia Copyright © 2019 EAI DOI 10.4108/eai.18-10-2018.2287329