The Monophosphaamidine Functional Group

For my w i fe Raechelle, who w i t h her love and support, has guided me in the right direction. The synthesis and characterization of two new bulky A^P-monophosphaamidines (also known as C-aminophosphaalkenes) are described. These phosphorus analogues to amidines are shown to exhibit isomerism and tautomerism in solution that is characteristic to the amidine functional group. In addition, the nature of the P=C-N system is examined using DFT techniques. Metal complexes of the title compounds with Group 6 metal carbonyls (L-M(CO)s, M = Cr, Mo, W) are also described. A new primary phosphane is reported that contains the sterically bulky 2,6-diisopropylphenyl (Dip) group, along with mono and disilylated derivatives. Also included is the synthesis and characterization of a new bulky A^A^P-monophosphaguanidine. IV Acknowledgements First and foremost I would like to thank my supervisor Prof. Rene Boere, fo