A New 2,1,3-Benzothiadiazole-Fused N-Heterocyclic Carbene and Its Metal Complexes

<p>In the last few decades, N-heterocyclic carbenes (NHCs) have emerged as a powerful class of carbon-based ligands. Owing to their unique electronic and steric properties, they have been incorporated in a large variety of catalytically active metal complexes. One of the strategies that have been used to modify the ligand properties of NHCs is annulation with different carbo- and heterocyclic groups. It has been shown that annulation in the 4-5 position of the imidazole ring significantly influences the stability and the σ-donor/π- acceptor properties of the carbene species, and this may be used as a versatile tool for the fine-tuning of their electronic properties. Following a brief review of NHC history, the synthesis and structural characterization of a new class of fused N-heterocyclic carbene ligands with a rigid bidentate architecture will be reported. Complexes of type [(NHC)M(COD)Cl], [(NHC)M(CO)2Cl] (M = Rh and Ir) and [(NHC)MCl] (M = Au) were prepared and characterized using spectroscopic and crystallographic methods. The results of preliminary catalytic studies using these new complexes is also reported.</p>

Name thesis:degree_name

Master of Science in Chemical Sciences (MSCB)

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Chemistry

Year dc:date.available

2016

Author dc:creator

• Buckner, Ossie J

Contributors dc:contributor

• Dr. Daniela Tapu
• Dr. Christopher Alexander
• Dr. Michael Van Dyke

• organometallic
• catalysis
• organic
• Chemistry

Repository record dc:identifier

https://digitalcommons.kennesaw.edu/mscs_etd/9

OAI identifier oai:identifier

oai:digitalcommons.kennesaw.edu:mscs_etd-1008