Abstract
The first examples of well-defined mononuclear Ru(I) and Os(I) complexes have been prepared and crystallographically characterized. EPR spectroscopy and DFT calculations indicate metalloradical character. The Ru(I) and Os(I) metalloradicals exhibits both 1-electron and 2-electron redox reactivity. The latter process affords unusual imido/nitrene complexes with substantial radical character on the “ArN” moiety.