Sonochemical synthesis,characterization, and effects of temperature,power ultrasound and reaction time on the morphological properties of two new nanostructured mercury(II) coordination supramolecule compounds |
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| Institution: | 1. Department of Chemistry, Firoozabad Branch, Islamic Azad University, Firoozabad, Iran;2. Departamento de Quimica Inorganica I Facultad de Ciencias Quimicas Universidad Complutense 28040-Madrid, Spain;3. School of Chemistry, College of Science, University of Tehran, Tehran, Iran;4. Persian Gulf Science and Technology Park, Nano Gostaran Navabegh Fardaye Dashtestan Company, Borazjan, Iran;5. Department of Pharmacognosy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran;6. Organic and Nano Group (ONG), Department of Chemistry, Faculty of Science, University of Maragheh, PO BOX 55181-83111, Maragheh, Iran;7. Maragheh University of Medical Sciences, Maragheh, Iran, PO Box: 78151-55158, Maragheh, Iran;8. School of Science and Technology, The University of Georgia, Tblisi, Georgia;9. Institute of Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, University of South Africa, Johannesburg 1709, South Africa;10. School of Life Sciences and Bio-Engineering, The Nelson Mandela African Institution of Science and Technology, P O Box 447, Tengeru, Arusha, United Republic of Tanzania;11. Organic and Nano Group (ONG), Department of Chemistry, Iran University of Science and Technology (IUST), PO Box 16846-13114, Tehran, Iran;1. Department of Chemistry, Firoozabad Branch, Islamic Azad University, Firoozabad, Fars, Iran, P.O. Box 74715-117;2. Persian Gulf Science and Technology Park, Nano Gostaran Navabegh Fardaye Dashtestan Company, Borazjan, Iran;3. Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box1410 Okolna 2 Str., 50-950 Wroclaw, Poland;4. Department of Life Science Engineering Faculty of New Science and Engineering University of Tehran, Tehran, Iran;5. Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, University of South Africa, Johannesburg 1709, South Africa;6. School of Life Sciences and Bio-Engineering, The Nelson Mandela African Institution of Science and Technology, P O Box 447, Tengeru, Arusha, United Republic of Tanzania |
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| Abstract: | Two new mercury(II) coordination supramolecular compounds (CSCs) (1D and 0D), Hg(L)(I)2]n (1) and Hg2(L′)2(SCN)2]·2H2O (2) (L = 2-amino-4-methylpyridine and L′ = 2,6-pyridinedicarboxlic acid), have been synthesized under different experimental conditions. Micrometric crystals (bulk) or nano-sized materials have been obtained depending on using the branch tube method or sonochemical irradiation. All materials have been characterized by field emission scanning electron microscope (FESEM), scanning electron microscopy (SEM), powder X-ray diffraction (PXRD) and FT-IR spectroscopy. Single crystal X-ray analyses on compounds 1 and 2 show that Hg2+ ions are 4-coordinated and 5-coordinated, respectively. Topological analysis shows that the compound 1 and 2 have 2C1, sql net. The thermal stability of compounds 1 and 2 in bulk and nano-size has been studied by thermal gravimetric (TG), differential thermal analyses (DTA) for 1 and differential scanning calorimetry (DSC) for 2, respectively. Also, by changing counter ions were obtained various structures 1 and 2 (1D and 0D, respectively). The role of different parameters like power of ultrasound irradiation, reaction time and temperature on the growth and morphology of the nano-structures are studied. Results suggest that increasing power ultrasound irradiation and temperature together with reducing reaction time and concentration of initial reagents leads to a decrease in particle size. |
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| Keywords: | Coordination supramolecular Sonochemical process Ultrasound irradiation Morphology |
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