Sonochemical synthesis of the novel 1D zig-zag Hg(II)-Iodo bridged metal-organic coordination compounds with thiosemicarbazide derivative ligand

Abstract

In the present research, a novel mercury (II) metal organic coordination compound, [Hg(Q)I2]n (Q = pyridine-4-carbaldehyde thiosemicarbazide) with nano rods shape was prepared applying an ultrasonic manner. The synthesized compound was determined with infrared spectroscopy (IR), scanning electron microscopy (SEM), and X-ray diffraction (XRD). In solid-state, the coordination polymer takes the appearance of a zig-zag 1D polymer. The coordination number of Hg (II) is four by one sulfur atom of organic ligand and three iodine atoms which two of iodine atoms are coordinated to other repeating units, and one of iodine is unattached. The zig-zag 1D chains interact with neighboring chains via weak interactions, making a 3D supramolecular metal organic polymer. It was found that using high-intensity ultrasound is a facile, versatile, and eco-friendly synthetic instrument for supramolecular coordination compounds. Also, types of non-covalent interactions in the structure cause extraordinary flexibility to perform secondary interactions and create the property of attracting guests to this host.