Metal-organometallic polymers and frameworks derived from facially metalated arylcarboxylates
| العنوان: | Metal-organometallic polymers and frameworks derived from facially metalated arylcarboxylates |
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| المؤلفون: | Kumalah Robinson, Sayon Agnes. |
| بيانات النشر: | 2011. |
| وصف مادي: | xxvii, 220 pages : illustrations, digital, PDF file Text (Electronic thesis) in PDF format. |
| Supplemental Data: | Mode of access: World Wide Web. |
| مستخلص: | In recent years, remarkable progress has been made in the use of coordination chemistry to design materials, commonly known as metal organic frameworks or coordination polymers. In a relatively short amount of time, this field has matured and a wide variety of compounds have been made and characterized. Metal-organic frameworks can be assembled by using metals or metal clusters as nodes and multifunctional organic ligands to link these nodes. The coordination bond between ligands and metals is both strong and directional, thereby facilitating the predictable construction of highly ordered structures. By the careful selection of the organic ligand and the metal, the overall physical properties of the material may be tuned. Thus various applications such as gas storage, separations, magnetism, non-linear optics, sensing and catalysis have been designed into metal-organic frameworks. In this context, the use of organometallic bridging ligands, which have the obvious potential to introduce unique functionality, have been relatively unexplored. Such linkers might be of interest because certain organometallic ligands might be chosen to take advantage of certain photophysical, magnetic, or even catalytic properties. These ligands may also have certain steric or charge effects which may affect the overall material. We've endeavored to study the use of facially metalated arene carboxylates in the design of functional coordination polymers. The coordination chemistry of these types of ligands is to our knowledge still unknown. These ligands serve as interesting case studies as the coordination chemistry of their non-metalated counterparts have been extensively studied. The metalated compounds are also charged complexes which are known to be photochemically labile. Due to the added steric bulk the materials formed using this ligand may lead to some non-default structures. Additionally, the ligand is air, water and heat stable. We have chosen to synthesize and characterize a series of metal-organometallic framework (MOMF) materials, derived from simple [CpFe-(arenecarboxylate)] bridging ligands. Depending on the reaction conditions, solid state structures ranging from simple 1D polymer chains to three dimensional square grid structures may be obtained. |
| مصطلحات الفهرس: | Academic Dissertation, Academic theses., Academic theses., Thèses et écrits académiques. |
| URL: | |
| ملاحظة: | Includes bibliographical references. |
| أرقام أخرى: | DGU 709592777 |
| المصدر المساهم: | From OAIster®, provided by the OCLC Cooperative. |
| رقم الأكسشن: | edsoai.ocn709592777 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |