The objectives of the group are to develop novel and efficient synthetic strategies for the preparation of phosphorescent emitters of 5d platinum group metals, with real application in the assembly of OLED devices, and to study processes of organic synthesis involving σ-bond activation-coupling reactions mediated by complexes of platinum group metals. To reach these objectives, the cleavage of C-H, B-H, Si-H, Ge-H, N-H, O-H, and C-X (X=Cl, Br) bonds, promoted by a variety of complexes of Ru, Os, Rh, Ir, Pd, and Pt, are being investigated. The generated knowledge is used to prepare PHOLED emitters of high efficiency for the high energy region and to sequence σ-bond activation reactions in the context of cross-coupling reactions. Three classes of cross-coupling processes are mainly studied: reactions involving two σ-bond activations, C-C coupling reactions involving a σ-bond activation, and couplings associated with borrowing hydrogen processes.