Coordination polymers and a dinuclear complex constructed from zinc(II) ions and fluorescein: iodine adsorption and optical properties |
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| Authors: | Mihai Răducă Cristian D. Ene Sorana Ionescu Mihaela Florea |
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| Affiliation: | 1. Inorganic Chemistry Department, Faculty of Chemistry, University of Bucharest, Bucharest, Romania;2. Coordination and Supramolecular Chemistry Laboratory, “Ilie Murgulescu” Institute of Physical Chemistry of the Romanian Academy, Bucharest, Romania;3. Department of Physical Chemistry, Faculty of Chemistry, University of Bucharest, Bucharest, Romania;4. National Institute of Material Physics, Magurele, Romania |
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| Abstract: | ![]()
Abstract1-D coordination polymers, 1∞[Zn(fl)2]·2EtOH and 1∞[Zn(fl)2]·2MeOH, and a dinuclear complex, [{Zn(fl)2}2(dienpip)]·4H2O·4EtOH (dienpip?= N,N′-bis(2-aminoethyl)piperazine), were obtained using Zn(II) ions and fluorescein anions (fl). Thermal analysis shows stability of the polymers after solvent removal up to more than 400?°C. Crystallization solvent molecules were removed under reduced pressure with the preservation of the polymeric structure, 1∞[Zn(fl)2]. Desolvated crystals were exposed to I2 vapors and the crystal structure determination by X-ray diffraction confirmed the presence of I2 molecules in the channels generated in crystals by the metal-organic framework. The iodine content, evaluated by X-ray diffraction, corresponds to the overall formula 1∞[Zn(fl)2]·0.3I2. The optical properties of the coordination polymers and the dinuclear complex have been investigated. |
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| Keywords: | Zinc complexes coordination polymers fluorescein MOFs iodine adsorption |
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