Sonochemical synthesis of a two-dimensional supramolecular polymer with nanoporous morphology, linear thallophilic and covalent hydrogen-bonding interactions

A new thallium-based supramolecular polymer [Tl(mu(3)-3-HClb)(mu(3)-3-Clb)](n) (1), (3-HClb = 3-chloroperbenzoic acid), has been synthesized and structurally characterized by single crystal X-ray crystallography. It has a two-dimensional structure with linear thallophilic and covalent hydrogen-bonding interactions. In order to evaluate the effects of concentration, ultrasonic irradiation and type of solvents on structure, morphology and thermal behavior of 1, some experiments were designed, and eight samples of 1 were synthesized under different conditions. These samples were characterized by IR spectroscopy, thermogravimetric and differential thermal analyses, X-ray powder diffraction and scanning electron microscopy.