Chemistry and spectroscopy of oxynitrenes and sulfenylnitrenes.

摘要

During the course of our investigations of potential photochemical precursors to NO, we have found considerable evidence for the production of oxynitrenes from one class of compounds. Only very limited reports of oxynitrenes are present in the literature, in contrast to the more thoroughly studied amino- or carbon-substituted nitrenes. Since these species have been essentially unstudied, our work has focused on clarifying their reactivity. Thus, we have developed simple photochemical precursors to oxynitrenes. Various methods have been employed to study of the chemistry of these oxynitrenes, including product studies performed with and without trapping reagents (alkene, oxygen, and H-atom donors), time-resolved infrared spectroscopy, time-resolved ultraviolet-visible spectroscopy, and low-temperature electron paramagnetic resonance spectroscopy. In addition, we have begun an investigation into the chemistry and reactivity of a related class of heteroatom substituted nitrenes: sulfenylnitrenes. These and other experimental and computational studies examining the chemistry and spectroscopy of oxynitrenes and sulfenylnitrenes will be discussed.