Aims & Learning Objectives:
To consider the synthesis, structure, bonding and uses of main group ring compounds with particular emphasis on the transition from ionic to covalent systems.
After studying the Unit, students should be able to:
* Explain the solid state and solution structures of a range of main group ring compounds (i.e. those containing Li, Mg, Al, B, Si, P and S)
* Describe how these compounds are synthesised and how their structure and bonding varies
* Describe some uses of these compounds
* Interpret analytical data (e.g. NMR) in order to elucidate structures
Content:
The structure, bonding and synthesis of organolithium ring systems. A detailed examination of lithium amide and imide structures leading to a general theory of ring stacking and laddering. Comparison of Li, Mg and Al ring systems. A survey of the synthesis, structure and bonding of B-N, Si-N, P-N and S-N ring systems.
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