Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/30784
Title: GROUP 10 TRANSITION METAL CHEMISTRY OF SULFUR-FUNCTIONALIZED/NON-CLASSICAL N-HETEROCYCLIC CARBENE LIGANDS
Authors: YUAN DAN
Keywords: N-heterocyclic carbene ligands, transition metal, sulfur-function, non-classical carbene, catalysis, donor strength
Issue Date: 5-Aug-2011
Source: YUAN DAN (2011-08-05). GROUP 10 TRANSITION METAL CHEMISTRY OF SULFUR-FUNCTIONALIZED/NON-CLASSICAL N-HETEROCYCLIC CARBENE LIGANDS. ScholarBank@NUS Repository.
Abstract: This thesis reports studies on sulfur-functionalized N-heterocyclic carbene (NHC) complexes, and the determination of donor strengths of non-classical NHCs. In the first part, a variety of Pd(II), Ni(II) and Pt(II) complexes bearing CSC-pincer type, sulfoxide, thiolato or sulfonate functionalized NHC ligands have been synthesized. The catalytic activities of selected complexes were investigated in C-C coupling or hydroamination reactions. In the second part, a series of hetero-bis(carbene) complexes trans-[PdBr<sub>2</sub>(<i><sup>i</sup></i>Pr<sub>2</sub>-bimy)L] (<i><sup>i</sup></i>Pr<sub>2</sub>-bimy = 1,3-diisopropylbenzimidazolin-2-ylidene; L = non-classical carbene) have been synthesized. The donating abilities of the transoid ligands L, which include a perimidine derived NHC, saturated 6- and 7-membered NHCs and 1,2,3-triazolin-5-ylidenes in this study, were determined by analyses of <sup>13</sup>C NMR spectra of those complexes. Catalytic activities of complexes bearing 1,2,3-triazolin-5-ylidenes and their trifluoroacetato analogues were examined in the direct arylation of pentafluorobenzene.
URI: http://scholarbank.nus.edu.sg/handle/10635/30784
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