Cyclodiphosphazane frameworks as enhanced anion receptors and N-heterocyclic carbenes
First isolated in the late 1890s, cyclodiphosphazanes have been known to be thermal stable and robust four-membered heterocycles comprising of alternating phosphorus and nitrogen. Although these species have experienced slow progress over the years, recent developments in this field have led to an i...
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Format: | Thesis-Doctor of Philosophy |
Language: | English |
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Nanyang Technological University
2024
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Online Access: | https://hdl.handle.net/10356/173782 |
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Institution: | Nanyang Technological University |
Language: | English |
Summary: | First isolated in the late 1890s, cyclodiphosphazanes have been known to be thermal stable and robust four-membered heterocycles comprising of alternating phosphorus and nitrogen. Although these species have experienced slow progress over the years, recent developments in this field have led to an increase in methodologies related to their syntheses and functionalization. This has led to their applications as versatile building blocks in other fields of chemistry. In this work, P(V) oxidized and metal chelated NH-bridged bis-cyclodiphosphazane consisting of two cyclodiphosphazane units will be explored as enhanced phosphazane anion receptors. In addition, a new series of phosphazane hybrid N-heterocyclic carbenes (PHNHCs) with increased robustness was synthesized allowing for the study of their reactivity towards olefins. |
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