Ultrasound irradiation effect on morphology and size of two new potassium coordination supramolecule compounds |
| |
| Institution: | 1. Department of Chemistry, Faculty of Sciences, University of Sistan and Baluchestan, Zahedan 98135–674, Islamic Republic of Iran;2. Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, P.O. Box 14115-4838, Tehran, Islamic Republic of Iran;3. Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS-UPR2301, 1 Avenue de la Terrasse, Bât 27, 91198 Gif sur Yvette cedex, France;1. Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China;2. College of Environment, Hohai University, Nanjing 210098, China;1. Department of Chemistry, Faculty of Chemical Science, Firoozabad Branch, Islamic Azad University, P.O. Box 74715-117, Firoozabad, Fars, Iran;2. Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra 08193, Barcelona, Spain;3. Department of Chemistry, Dashtestan Branch, Islamic Azad University, Borazjan, Iran;1. Department of Chemistry, Faculty of Sciences, University of Sistan and Baluchestan, P.O. Box 98135-674, Zahedan, Islamic Republic of Iran;2. Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, P.O. Box 14115-4838, Tehran, Islamic Republic of Iran;3. Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra 08193, Barcelona, Spain;4. Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Univ. Paris-Sud, Université Paris-Saclay, 1, av. de la Terrasse, 91198 Gif-sur-Yvette, France;5. Departamento de Química Física y Analítica, Universidad de Oviedo, 33006 Oviedo-CINN, Spain |
| |
| Abstract: | Two new potassium coordination supramolecular compounds (2D and 1D), K(H3L)(H2L)(H2O)]n·H2O (1) and K(H2L′)(HL′)(H2O)2]·H2O (2), (L = 1,3,5-tricarboxylic acid, L′ = 2,6-pyridinedicarboxylic 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 microscopy (FE-SEM), scanning electron microscopy (SEM), powder X-ray diffraction (PXRD), FT-IR spectroscopy and elemental analyses. Single crystal X-ray analyses on compounds 1 and 2 show that K+ ions are 3- and 7-coordinated, respectively. Additionally, H-bonds incorporate the layers and chains in 1 and 2 into 3D and 2D (along (0,0,1) direction) frameworks. Topological analysis shows that the compound 1 and 2 are 3,6-coordinated kgd and 2,4-coordinated 2,4C4 net. The thermal stability of compounds 1 and 2 in bulk and nano-size has been studied by thermal gravimetric (TG) and differential thermal analyses (DTA) and compared each other. The role of different parameters like temperature, reaction time and ultrasound irradiation power on the growth and morphology of the nano-structures are studied. Results suggest that an increase of temperature, sonication power and reduction of reaction time led to a particle size decrease. |
| |
| Keywords: | Coordination supramolecular Sonochemical process Ultrasound irradiation Topology |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
