Synthesis, structural characterisation and stereochemical investigation of chiral sulfur-functionalised N-heterocyclic carbene complexes of palladium and platinum
Palladium and platinum complexes containing a sulfur-functionalised N-heterocyclic carbene (S-NHC) chelate ligand have been synthesised. The absolute conformations of these novel organometallic S-NHC chelates were determined by X-ray structural analyses and solution-phase 2D 1H–1H ROESY NMR spectros...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2013
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| Online Access: | https://hdl.handle.net/10356/99806 http://hdl.handle.net/10220/17580 |
| _version_ | 1826109497796460544 |
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| author | Krishnan, Deepa Wu, Meiyi Li, Yongxin Leung, Pak-Hing Pullarkat, Sumod A. |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Krishnan, Deepa Wu, Meiyi Li, Yongxin Leung, Pak-Hing Pullarkat, Sumod A. |
| author_sort | Krishnan, Deepa |
| collection | NTU |
| description | Palladium and platinum complexes containing a sulfur-functionalised N-heterocyclic carbene (S-NHC) chelate ligand have been synthesised. The absolute conformations of these novel organometallic S-NHC chelates were determined by X-ray structural analyses and solution-phase 2D 1H–1H ROESY NMR spectroscopy. The structural studies revealed that the phenyl substituents on the stereogenic carbon atoms invariably take up the axial positions on the Pd-C-S coordination plane to afford a skewed five-membered ring structure. All of the chiral complexes are structurally rigid and stereochemically locked in a chiral ring conformation that is either (Rs,S,R)-λ or (Ss,R,R)-δ in both the solid state and solution. |
| first_indexed | 2024-10-01T02:19:11Z |
| format | Journal Article |
| id | ntu-10356/99806 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:19:11Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/998062020-03-07T12:34:49Z Synthesis, structural characterisation and stereochemical investigation of chiral sulfur-functionalised N-heterocyclic carbene complexes of palladium and platinum Krishnan, Deepa Wu, Meiyi Li, Yongxin Leung, Pak-Hing Pullarkat, Sumod A. School of Physical and Mathematical Sciences Chemistry and Biological Chemistry Palladium and platinum complexes containing a sulfur-functionalised N-heterocyclic carbene (S-NHC) chelate ligand have been synthesised. The absolute conformations of these novel organometallic S-NHC chelates were determined by X-ray structural analyses and solution-phase 2D 1H–1H ROESY NMR spectroscopy. The structural studies revealed that the phenyl substituents on the stereogenic carbon atoms invariably take up the axial positions on the Pd-C-S coordination plane to afford a skewed five-membered ring structure. All of the chiral complexes are structurally rigid and stereochemically locked in a chiral ring conformation that is either (Rs,S,R)-λ or (Ss,R,R)-δ in both the solid state and solution. 2013-11-11T05:51:48Z 2019-12-06T20:11:50Z 2013-11-11T05:51:48Z 2019-12-06T20:11:50Z 2013 2013 Journal Article Krishnan, D., Pullarkat, S. A., Wu, M., Li, Y., & Leung, P.-H. (2013). Synthesis, Structural Characterisation and Stereochemical Investigation of Chiral Sulfur-Functionalised N-Heterocyclic Carbene Complexes of Palladium and Platinum. Chemistry - A European Journal, 19(17), 5468-5475. 0947-6539 https://hdl.handle.net/10356/99806 http://hdl.handle.net/10220/17580 10.1002/chem.201204320 en Chemistry - a European journal |
| spellingShingle | Chemistry and Biological Chemistry Krishnan, Deepa Wu, Meiyi Li, Yongxin Leung, Pak-Hing Pullarkat, Sumod A. Synthesis, structural characterisation and stereochemical investigation of chiral sulfur-functionalised N-heterocyclic carbene complexes of palladium and platinum |
| title | Synthesis, structural characterisation and stereochemical investigation of chiral sulfur-functionalised N-heterocyclic carbene complexes of palladium and platinum |
| title_full | Synthesis, structural characterisation and stereochemical investigation of chiral sulfur-functionalised N-heterocyclic carbene complexes of palladium and platinum |
| title_fullStr | Synthesis, structural characterisation and stereochemical investigation of chiral sulfur-functionalised N-heterocyclic carbene complexes of palladium and platinum |
| title_full_unstemmed | Synthesis, structural characterisation and stereochemical investigation of chiral sulfur-functionalised N-heterocyclic carbene complexes of palladium and platinum |
| title_short | Synthesis, structural characterisation and stereochemical investigation of chiral sulfur-functionalised N-heterocyclic carbene complexes of palladium and platinum |
| title_sort | synthesis structural characterisation and stereochemical investigation of chiral sulfur functionalised n heterocyclic carbene complexes of palladium and platinum |
| topic | Chemistry and Biological Chemistry |
| url | https://hdl.handle.net/10356/99806 http://hdl.handle.net/10220/17580 |
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