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http://dspace.cityu.edu.hk/handle/2031/9112| Title: | Synthesis, structural and spectroscopic studies of ruthenium-indolizinone complexes |
| Authors: | Shek, Hau Lam (石巧霖) |
| Department: | Department of Chemistry |
| Issue Date: | 2017 |
| Course: | BCH4036 Project |
| Programme: | Bachelor of Science (Honours) in Applied Chemistry |
| Supervisor: | Dr. Wong, C. Y. Alex |
| Citation: | Shek, H. L. (2017). Synthesis, structural and spectroscopic studies of ruthenium-indolizinone complexes (Outstanding Academic Papers by Students (OAPS), City University of Hong Kong). |
| Abstract: | The first examples of structurally characterized ruthenium–indolizinone zwitterions complexes, namely [Ru([14]aneS4)(Cl)(indolizinone)](ClO4) (1), [Ru([14]aneS4)(CH3CN)(indolizinone)](ClO4)2 (1’) as well as [Ru([9]aneS3)(N^N)(indolizinone)](ClO4)2 (2), were isolated from reactions between Ru(II) precursors and pyridyine-substituted alkynyl ketones (abbreviated as pyridyl ynones) in THF or MeOH. All these complexes were obtained in high yield (64 – 94%). The molecular structure of 2 was determined by X-ray crystallography. Spectroscopic studies of these complexes were also performed. The experimental results suggest that the interaction between pyridyl-ynones and Ru(II) complexes support 5-endo-dig cyclization pathway and discount a Ru–vinylidene intermidacy to give metalated–indolizinones. |
| Appears in Collections: | OAPS - Dept. of Chemistry |
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