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
Hayati, Payam (University of Sistan and Baluchestan. Department of Chemistry)
Rezvani, Ali Reza (University of Sistan and Baluchestan. Department of Chemistry)
Morsali, Ali (Tarbiat Modares University. Department of Chemistry)
Ruiz-Molina, Daniel (Institut Català de Nanociència i Nanotecnologia)
Geravand, Samira (University of Sistan and Baluchestan. Department of Chemistry)
Suárez García, Salvio (Institut Català de Nanociència i Nanotecnologia)
Moreno Villaécija, Miguel Ángel (Institut Català de Nanociència i Nanotecnologia)
García Granda, S. (Universidad de Oviedo. Departamento de Química Física y Analítica)
Mendoza Meroño, Rafael (Universidad de Oviedo. Departamento de Química Física y Analítica)
Retailleau, Pascal (Université Paris-Saclay)

Data:	2017
Resum:	Two new mercury(II) coordination supramolecular compounds (CSCs) (1D and 0D), [Hg(L)(I)] (1) and [Hg(L')(SCN)]·2HO (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 Hg 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.
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Llengua:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Matèria:	Coordination supramolecular ; Sonochemical process ; Ultrasound irradiation ; Morphology
Publicat a:	Ultrasonics sonochemistry, Vol. 37 (July 2017) , p. 382-393, ISSN 1873-2828

DOI: 10.1016/j.ultsonch.2017.01.021

Postprint 38 p, 1.5 MB

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