Bulky aryl functionalized carbazolyl ligands: amido alternatives to the 2,6-diarylphenyl ligand class?
Sterically encumbered amido ligands based on a 1,8-diarylcarbazol-9-yl backbone have been investigated as electronically distinct alternatives to the widely-used terphenyl ligand class in the stabilization of low-coordinate metal complexes, and structurally characterized for the first time. While 1,...
| Main Authors: | , , , , |
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| 格式: | Journal article |
| 语言: | English |
| 出版: |
2008
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| _version_ | 1826286486533701632 |
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| author | Coombs, N Stasch, A Cowley, A Thompson, A Aldridge, S |
| author_facet | Coombs, N Stasch, A Cowley, A Thompson, A Aldridge, S |
| author_sort | Coombs, N |
| collection | OXFORD |
| description | Sterically encumbered amido ligands based on a 1,8-diarylcarbazol-9-yl backbone have been investigated as electronically distinct alternatives to the widely-used terphenyl ligand class in the stabilization of low-coordinate metal complexes, and structurally characterized for the first time. While 1,8-diphenylcarbazol-9-yl derivatives are readily available, facile rotation about the Cipso-Cipso bonds leads to structurally characterized main group derivatives {e.g., [(1,8-Ph,-3,6-Me2C12H4N)K]2} in which the coordination geometry at the metal centre is augmented by secondary metal arene interactions. By contrast, the extra bulk inherent in the corresponding 1,8-dimesityl ligand results in essentially perpendicular alignments of the arene and carbazole planes, and a substituent-enforced sterically protected pocket. Comparative structural studies of complexes containing the GaCl2 fragment imply that the 1,8-dimesitylcarbazol-9-yl framework offers greater steric protection at the metal centre than does the corresponding 2,6-dimesitylphenyl ligand. |
| first_indexed | 2024-03-07T01:44:29Z |
| format | Journal article |
| id | oxford-uuid:97f599ed-baf8-45aa-9d9e-44e6352e4b10 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T01:44:29Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | oxford-uuid:97f599ed-baf8-45aa-9d9e-44e6352e4b102022-03-27T00:03:30ZBulky aryl functionalized carbazolyl ligands: amido alternatives to the 2,6-diarylphenyl ligand class?Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:97f599ed-baf8-45aa-9d9e-44e6352e4b10EnglishSymplectic Elements at Oxford2008Coombs, NStasch, ACowley, AThompson, AAldridge, SSterically encumbered amido ligands based on a 1,8-diarylcarbazol-9-yl backbone have been investigated as electronically distinct alternatives to the widely-used terphenyl ligand class in the stabilization of low-coordinate metal complexes, and structurally characterized for the first time. While 1,8-diphenylcarbazol-9-yl derivatives are readily available, facile rotation about the Cipso-Cipso bonds leads to structurally characterized main group derivatives {e.g., [(1,8-Ph,-3,6-Me2C12H4N)K]2} in which the coordination geometry at the metal centre is augmented by secondary metal arene interactions. By contrast, the extra bulk inherent in the corresponding 1,8-dimesityl ligand results in essentially perpendicular alignments of the arene and carbazole planes, and a substituent-enforced sterically protected pocket. Comparative structural studies of complexes containing the GaCl2 fragment imply that the 1,8-dimesitylcarbazol-9-yl framework offers greater steric protection at the metal centre than does the corresponding 2,6-dimesitylphenyl ligand. |
| spellingShingle | Coombs, N Stasch, A Cowley, A Thompson, A Aldridge, S Bulky aryl functionalized carbazolyl ligands: amido alternatives to the 2,6-diarylphenyl ligand class? |
| title | Bulky aryl functionalized carbazolyl ligands: amido alternatives to the 2,6-diarylphenyl ligand class? |
| title_full | Bulky aryl functionalized carbazolyl ligands: amido alternatives to the 2,6-diarylphenyl ligand class? |
| title_fullStr | Bulky aryl functionalized carbazolyl ligands: amido alternatives to the 2,6-diarylphenyl ligand class? |
| title_full_unstemmed | Bulky aryl functionalized carbazolyl ligands: amido alternatives to the 2,6-diarylphenyl ligand class? |
| title_short | Bulky aryl functionalized carbazolyl ligands: amido alternatives to the 2,6-diarylphenyl ligand class? |
| title_sort | bulky aryl functionalized carbazolyl ligands amido alternatives to the 2 6 diarylphenyl ligand class |
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