Elusive group 14 elemental species stabilized by amidinato silylenes
This thesis describes the synthesis and isolation of a series of Group 14 elemental clusters bearing challenging and unique structural characteristics, all stabilized by an amidinato silylene ligand system. In Chapter 2, the synthesis of a remarkable heavier analogue of spiro[3.3]hepta-1,2,5,...
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| Formato: | Thesis-Doctor of Philosophy |
| Idioma: | English |
| Publicado em: |
Nanyang Technological University
2024
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| Acesso em linha: | https://hdl.handle.net/10356/173285 |
| _version_ | 1826125954398814208 |
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| author | Wee, Meldon Yi Shuo |
| author2 | So Cheuk Wai |
| author_facet | So Cheuk Wai Wee, Meldon Yi Shuo |
| author_sort | Wee, Meldon Yi Shuo |
| collection | NTU |
| description | This thesis describes the synthesis and isolation of a series of Group 14
elemental clusters bearing challenging and unique structural characteristics, all
stabilized by an amidinato silylene ligand system.
In Chapter 2, the synthesis of a remarkable heavier analogue of
spiro[3.3]hepta-1,2,5,6-tetraene 2.4 is described. Its unique structure bearing two
simultaneous strained cyclic allene moieties can also be described as simultaneous
silylones, monatomic silicon(0) species stabilised by a tetradentate silylene ligand. Its
reactivity to W(CO)5·THF results in the formation of an bis(pentacarbonyl tungsten)-
spiroheptasiladione adduct 2.8 demonstrating its Lewis Basicity. The structures of
other co-products, 2.6 and 2.7, from its synthesis shed light on its proposed synthetic
pathway.
In Chapter 3, the transfer of digermanium(0) to amidinato silylene to from a
digermadisilacyclobutadiene complex 3.2 is demonstrated. Stepwise growth of a
germanium cluster is also demonstrated resulting the synthesis and isolation of a
bis(trigermanium(0)) complex 3.3. Preliminary results demonstrating the release of
trigermanium (0) species towards the preparation of amorphous germanium
nanoparticles are also described |
| first_indexed | 2024-10-01T06:44:50Z |
| format | Thesis-Doctor of Philosophy |
| id | ntu-10356/173285 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:44:50Z |
| publishDate | 2024 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1732852024-02-01T09:53:45Z Elusive group 14 elemental species stabilized by amidinato silylenes Wee, Meldon Yi Shuo So Cheuk Wai School of Chemistry, Chemical Engineering and Biotechnology CWSo@ntu.edu.sg Science::Chemistry::Inorganic chemistry::Cyclic compounds Science::Chemistry::Inorganic chemistry::Synthesis This thesis describes the synthesis and isolation of a series of Group 14 elemental clusters bearing challenging and unique structural characteristics, all stabilized by an amidinato silylene ligand system. In Chapter 2, the synthesis of a remarkable heavier analogue of spiro[3.3]hepta-1,2,5,6-tetraene 2.4 is described. Its unique structure bearing two simultaneous strained cyclic allene moieties can also be described as simultaneous silylones, monatomic silicon(0) species stabilised by a tetradentate silylene ligand. Its reactivity to W(CO)5·THF results in the formation of an bis(pentacarbonyl tungsten)- spiroheptasiladione adduct 2.8 demonstrating its Lewis Basicity. The structures of other co-products, 2.6 and 2.7, from its synthesis shed light on its proposed synthetic pathway. In Chapter 3, the transfer of digermanium(0) to amidinato silylene to from a digermadisilacyclobutadiene complex 3.2 is demonstrated. Stepwise growth of a germanium cluster is also demonstrated resulting the synthesis and isolation of a bis(trigermanium(0)) complex 3.3. Preliminary results demonstrating the release of trigermanium (0) species towards the preparation of amorphous germanium nanoparticles are also described Doctor of Philosophy 2024-01-23T08:16:38Z 2024-01-23T08:16:38Z 2024 Thesis-Doctor of Philosophy Wee, M. Y. S. (2024). Elusive group 14 elemental species stabilized by amidinato silylenes. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/173285 https://hdl.handle.net/10356/173285 10.32657/10356/173285 en This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0). application/pdf Nanyang Technological University |
| spellingShingle | Science::Chemistry::Inorganic chemistry::Cyclic compounds Science::Chemistry::Inorganic chemistry::Synthesis Wee, Meldon Yi Shuo Elusive group 14 elemental species stabilized by amidinato silylenes |
| title | Elusive group 14 elemental species stabilized by amidinato silylenes |
| title_full | Elusive group 14 elemental species stabilized by amidinato silylenes |
| title_fullStr | Elusive group 14 elemental species stabilized by amidinato silylenes |
| title_full_unstemmed | Elusive group 14 elemental species stabilized by amidinato silylenes |
| title_short | Elusive group 14 elemental species stabilized by amidinato silylenes |
| title_sort | elusive group 14 elemental species stabilized by amidinato silylenes |
| topic | Science::Chemistry::Inorganic chemistry::Cyclic compounds Science::Chemistry::Inorganic chemistry::Synthesis |
| url | https://hdl.handle.net/10356/173285 |
| work_keys_str_mv | AT weemeldonyishuo elusivegroup14elementalspeciesstabilizedbyamidinatosilylenes |