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Reaction of Pentelidene Complexes with Diazoalkanes: Stabilization of Parent 2,3-Dipnictabutadienes

Seidl, Michael ; Stubenhofer, Markus ; Timoshkin, Alexey Y. ; Scheer, Manfred


The reaction of the phosphinidene complex [Cp*P{W(CO)(5)}(2)] (1a) with diphenyldiazomethane leads to [{W(CO)(5)}Cp*P=NN{W(CO)(5)}=CPh2] (2). Compound 2 is a rare example of a phosphadiazadiene ligand (R-P=N-N=CRR) complex. At temperatures above 0 degrees C, 2 decomposes into the complex [{W(CO)(5)}PCp*{N(H)N=CPh2)(2)] (3), among other species. The reaction of the pentelidene complexes ...


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