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The Complexed 1,3-Diphospha-2-Arsa-Allyl Radical and its Cationic and Anionic Derivatives

Stubenhofer, Markus ; Bodensteiner, Michael ; Kuntz, Christian ; Zennek, U. ; Sierka, Marek ; Scheer, Manfred


Photolysis of [Cp*As{W(CO)5}2] (1 a) in the presence of Mes*PPMes* (Mes*=2,4,6-tri-tert-butylphenyl) leads to the novel 1,3-diphospha-2-arsaallyl radical [(CO)5W(μ,η2:η1-P2AsMes*2)W(CO)4] (2 a). The frontier orbitals of the radical 2 a are indicative of a stable π-allylic system that is only marginally influenced by the d orbitals of the two tungsten atoms. The SOMO and the corresponding spin ...


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