A brief introduction to transition metals in unusual oxidation states

Abstract

As we celebrate the 100th year since Alfred Werner’s Nobel Prize in Chemistry award for his pioneering work on coordination chemistry, we look back in this review at some of the more prominent examples of transition metals in unusual oxidation states. This area of coordination chemistry has been studied by chemists all over the world for the best part of this past century, with applications being found in a vast array of environments. Hopefully, this simple review will allow us a glimpse of the great potential and possibility in the chemistry of transition metals in unusual oxidation states.