Open AccessA novel mixed-ligand coordination polymer with pillared-layer & ladder like structure: synthesis, crystal structure, properties study, and application as sorbent for acetaminophen extraction
Author(s) -
Mahmoud Delavar,
Behnaz Afzalian,
Behrouz Notash
Publication year - 2015
Publication title -
international journal of basic and applied sciences
Language(s) - English
Resource type - Journals
ISSN - 2227-5053
DOI - 10.14419/ijbas.v4i2.4384
Subject(s) - thermogravimetric analysis , thermal stability , coordination polymer , sorbent , crystallography , crystal structure , hydrogen bond , ligand (biochemistry) , materials science , polymer , extraction (chemistry) , infrared spectroscopy , chemistry , molecule , organic chemistry , composite material , biochemistry , receptor , adsorption
The novel coordination polymer, [Cd (NO 3 ) (P-2) (pzca)] n (1); [P-2=pillar ligand = 4, 4'-bipyridine; pzca = 2-pyrazinecarboxylate] has been synthesized by the branched tube method under heat gradient condition and characterized by elemental analysis, FT-IR spectroscopy and powder X-ray diffraction. Compound 1 was structurally characterized by single-crystal X-ray diffraction. X-ray analysis reveals that it forms an one-dimensional covalent ladder like structure by two different bridging ligands, 4, 4’-bipy and pzca, which further significantly extends into two-dimensional networks via hydrogen bonding and other weak interactions. This polymer consists of three parts: equatorial layers, the bpy ligands connect axially these layers as the pillar which result in coordination pillared-layer structure (CPL) and one dimensional pores. The application of compound 1 was studied as a sorbent for extraction of acetaminophen medicine. Acetaminophen was extracted by solid phase extraction method and monitored by UV-Vis spectrophotometer. Furthermore, the remarkable thermal stability of compound 1 has also been studied by thermal gravimetric analyses (TGA).